GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4954
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 57691,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4955",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4953",
    "results": [
        {
            "id": 58384,
            "name": "Blitz 13x13 Swiss Tournament 2020-04-02 19:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
            "schedule": {
                "id": 3,
                "name": "Blitz 13x13 Swiss Tournament",
                "rrule": "DTSTART:20250909T070000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:27:45.234995Z",
                "last_run": "2025-09-09T07:00:15.672859Z",
                "lead_time_seconds": 1800,
                "tournament_type": "swiss",
                "handicap": 0,
                "rules": "japanese",
                "size": 13,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 10,
                    "main_time": 300,
                    "periods": 5
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 6,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 40
                },
                "next_run": "2025-09-09T11:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 13,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 10,
                "main_time": 300,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-04-02T19:30:14.701324Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-04-02T19:31:10.268911Z",
            "ended": "2020-04-02T20:20:02.768397Z",
            "start_waiting": "2020-04-02T19:31:09.033843Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png",
            "player_count": 10
        },
        {
            "id": 3473,
            "name": "Reddit Round Robin #6 - Handicap - 15k-6k",
            "director": {
                "id": 963,
                "username": "thouis",
                "country": "_LGBT",
                "icon": "https://b0c2ddc39d13e1c0ddad-93a52a5bc9e7cc06050c1a999beb3694.ssl.cf1.rackcdn.com/a2e7f9e59abe305c58d78f58f24e5f13-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1302.432924737952,
                        "deviation": 64.11757365972781,
                        "volatility": 0.0595766108318105
                    }
                },
                "ranking": 21.033881936776545,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Round Robin, 15k-6k, 10 players max, Handicap, Correspondence",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 38,
                "name": "reddit",
                "summary": "/r/baduk",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 2269,
                "icon": "https://b0c2ddc39d13e1c0ddad-93a52a5bc9e7cc06050c1a999beb3694.ssl.cf1.rackcdn.com/5021b9df7b49c54cc5eb5d8ce9d893bb-64.png"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 15,
            "max_ranking": 24,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2014-12-08T23:06:24.103416Z",
            "ended": "2015-04-26T13:10:30.088040Z",
            "start_waiting": "2014-12-08T23:06:20.749549Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://b0c2ddc39d13e1c0ddad-93a52a5bc9e7cc06050c1a999beb3694.ssl.cf1.rackcdn.com/5021b9df7b49c54cc5eb5d8ce9d893bb-15.png",
            "player_count": 0
        },
        {
            "id": 119351,
            "name": "Correspondence Weekly McMahon 19x19 2024-08-24 17:00",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Site-wide Tournament",
            "schedule": {
                "id": 9,
                "name": "Correspondence Weekly McMahon 19x19",
                "rrule": "DTSTART:20250908T170000Z\nRRULE:FREQ=WEEKLY",
                "active": true,
                "created": "2015-12-16T02:22:56.480465Z",
                "last_run": "2025-09-08T17:00:15.694170Z",
                "lead_time_seconds": 432000,
                "tournament_type": "s_mcmahon",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "pause_on_weekends": true,
                    "max_time": 259200,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 10,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": 3,
                    "upper_bar": "25",
                    "lower_bar": "15",
                    "group_size": 4,
                    "maximum_players": 1000
                },
                "next_run": "2025-09-15T17:00:00Z",
                "base_points": "30.0"
            },
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "pause_on_weekends": true,
                "max_time": 259200,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2024-08-24T17:00:01.709331Z",
            "players_start": 10,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-08-24T17:00:45.434327Z",
            "ended": null,
            "start_waiting": "2024-08-24T17:00:44.423854Z",
            "board_size": 19,
            "active_round": 3,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 19
        },
        {
            "id": 96680,
            "name": "Mingren Nines Title Tournament 2022",
            "director": {
                "id": 40318,
                "username": "gamesorry",
                "country": "cn",
                "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2057.984434867273,
                        "deviation": 68.48148098609482,
                        "volatility": 0.060153715750324306
                    }
                },
                "ranking": 31.62484669602767,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Mingren Nines Title Tournament 2022\n\nTitle Holder: <a style=\"color:deepskyblue\" href='https://online-go.com/user/view/40318'>gamesorry [Nines Mingren] x2</a>\n\nHall of Fame:\n<table style=\"text-align:center;border:1px solid\">\n<tr>\n\t<th style=\"border:1px solid\">Year</th>\n\t<th style=\"border:1px solid\">Title Match Winner</th>\n\t<th style=\"border:1px solid\">Score</th>\n\t<th style=\"border:1px solid\">Title Match Runner-up</th>\n\t<th style=\"border:1px solid\">\n\tTitle Tournament Winner\n\t\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/gold_title_9.png' alt='Gold'></img>\n\t</th>\n\t<th style=\"border:1px solid\">\n\t\tTitle Tournament Runner-up\n\t\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/silver_title_9.png' alt='Silver'></img>\n\t</th>\n\t<th style=\"border:1px solid\">\n\t\tTitle Tournament 3rd Place\n\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/bronze_title_9.png' alt='Bronze'></img>\n\t</th>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2376'>2007</a></td>\n\t<td><b>hotspur</b></td><td></td><td></td>\n\t<td><b>hotspur (3d)</b></td><td>jnhmsbn (5k)</td><td>dmg (4k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2395'>2008</a></td>\n\t<td><b>Rena</b></td><td>&lowast;</td><td>hotspur</td>\n\t<td><b>Rena (5k)</b></td><td>RaikB (9k)</td><td>Akimoon (1k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2410'>2009</a></td>\n\t<td><b>Rena</b></td><td>4-1</td><td>keiler</td>\n\t<td><b>keiler (1k)</b></td><td>Isao (1k)</td><td>KlausP (3d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2426'>2010</a></td>\n\t<td><b>KlausP</b></td><td>4-1</td><td>Rena</td>\n\t<td><b>KlausP (3d)</b></td><td>illluck (1d)</td><td>kennabee (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2442'>2011</a></td>\n\t<td><b>vitality</b></td><td>&lowast;</td><td>KlausP</td>\n\t<td><b>vitality (5d)</b></td><td>kennabee (1d)</td><td>redundant (5k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2463'>2012</a></td>\n\t<td><b>pollemand</b></td><td>5-0</td><td>vitality</td>\n\t<td><b>pollemand (3d)</b></td><td>mmc (1d)</td><td>tacololo (3k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2482'>2013</a></td>\n\t<td><b>pollemand</b></td><td>5-0</td><td>gamesorry</td>\n\t<td><b>gamesorry (3d)</b></td><td>devariot (1k)</td><td>nrx (3d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/4506'>2014</a></td>\n\t<td><b>xhu98</b></td><td>3-2</td><td>gamesorry</td>\n\t<td><b>gamesorry (3d)</b></td><td>xhu98 (3d)</td><td>adhalanay (5k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/11925'>2015</a></td>\n\t<td><b>xhu98</b></td>\n\t<td>4-1</td>\n\t<td>mark5000</td>\n\t<td><b>mark5000 (2d)</b></td><td>zebra (1k)</td><td>hozoin76 (8k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/21622'>2016</a></td>\n\t<td><b>Winterfell</b></td>\n\t<td>3-2</td>\n\t<td>xhu98</td>\n\t<td><b>Winterfell (7d)</b></td><td>gamesorry (5d)</td><td>Sofiam (4k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/29845'>2017</a></td>\n\t<td><b>Sadaharu</b></td>\n\t<td>4-1</td>\n\t<td>Winterfell</td>\n\t<td><b>Sadaharu (7d)</b></td><td>kungpao (5d)</td><td>popop (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/42052'>2018</a></td>\n\t<td><b>gamesorry</b></td>\n\t<td><a href='https://online-go.com/tournament/69386'>3-2</a></td>\n\t<td>Sadaharu</td>\n\t<td><b>Sadaharu (9d+)</b></td><td>Baklan (7d)</td><td>gamesorry (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/53957'>2019</a></td>\n\t<td><b>gamesorry</b></td>\n\t<td><a href='https://online-go.com/tournament/87265'>3-2</a></td>\n\t<td>找借口安静</td>\n\t<td><b>Uri-ChoRong [8d]</b></td><td>找借口安静 [1d]</td><td>Snowman in Summer [4k]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/66125'>2020</a></td>\n\t<td></td>\n\t<td>(TBA)</td>\n\t<td></td>\n\t<td><b>mark5000 [5d]</b></td><td>sweissner2 [5k]</td><td>bagelfan [2d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/83357'>2021</a></td>\n\t<td></td>\n\t<td>(TBA)</td>\n\t<td></td>\n\t<td></td><td>Ongoing (round 3)</td><td></td>\n</tr>\n</table>\n\n&lowast; means the games were finished by timeout or retirement. Old OGS ranks were displayed for cycles before 2016.\n\nNotes:\n- The starting time on this page is an approximation and subject to change. It will be finalized once the announcement is posted in <a href='https://online-go.com/group/515'>OGS Title Tournaments</a> group and <a href='https://forums.online-go.com/t/title-tournament-announcements/10408/'>Title Tournament Announcement</a>.\n- Bots and use of AI are prohibited in this tournament and violators will be disqualified.",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 93120,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 604800,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 515,
                "name": "OGS Title Tournaments",
                "summary": "Would you like to compete with hundreds of players in epic tournaments and become the Honinbo, Meijin, Kisei, Tianyuan, Mingren or Kuksu? Join us!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 2933,
                "icon": "https://b0c2ddc39d13e1c0ddad-93a52a5bc9e7cc06050c1a999beb3694.ssl.cf1.rackcdn.com/e172c7a14ec09bda65360d6b80884e67-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-12-28T23:00:00Z",
            "players_start": 100,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-12-27T17:14:32.853983Z",
            "ended": "2024-01-25T16:06:28.012262Z",
            "start_waiting": "2022-12-27T17:14:27.739003Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://b0c2ddc39d13e1c0ddad-93a52a5bc9e7cc06050c1a999beb3694.ssl.cf1.rackcdn.com/e172c7a14ec09bda65360d6b80884e67-15.png",
            "player_count": 90
        },
        {
            "id": 71739,
            "name": "19x19 D.E. 02/27/2021",
            "director": {
                "id": 582354,
                "username": "GlacialNoivern",
                "country": "us",
                "icon": "https://b0c2ddc39d13e1c0ddad-93a52a5bc9e7cc06050c1a999beb3694.ssl.cf1.rackcdn.com/bae7db25edc19db310969d9c23831e70-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1538.257364713131,
                        "deviation": 65.55077561199136,
                        "volatility": 0.06026203340214659
                    }
                },
                "ranking": 24.886416928616224,
                "professional": false,
                "ui_class": ""
            },
            "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n\n☆ This is a ‘Fast Correspondence Tournament’. Please, avoid delaying your games using the vacation feature or pause. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).\n\n☆ Does NOT pause on the weekend.\n\n☆ If this sounds like a good time to you, please join us!\n\n\n<HR><BR>\nTournaments are a great way to find people who are more competitive than your average opponent. A big part of improving your own skills is by having them tested by capable adversaries. If you would like to be apart of more Chinese ruleset tournaments, check out our group for weekly opportunities.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "nz",
            "time_per_move": 45120,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 172800,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3207,
                "name": "New Zealand Tournaments",
                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 595,
                "icon": "https://b0c2ddc39d13e1c0ddad-93a52a5bc9e7cc06050c1a999beb3694.ssl.cf1.rackcdn.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-02-28T02:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-02-28T02:00:34.944616Z",
            "ended": "2021-09-26T21:58:24.714660Z",
            "start_waiting": "2021-02-28T02:00:34.362392Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://b0c2ddc39d13e1c0ddad-93a52a5bc9e7cc06050c1a999beb3694.ssl.cf1.rackcdn.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 14
        },
        {
            "id": 106054,
            "name": "Live 19x19 Swiss Tournament 2023-08-03 16:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
            "schedule": {
                "id": 4,
                "name": "Live 19x19 Swiss Tournament",
                "rrule": "DTSTART:20250909T040000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:30:39.250689Z",
                "last_run": "2025-09-09T04:00:15.664907Z",
                "lead_time_seconds": 1800,
                "tournament_type": "swiss",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 30,
                    "main_time": 600,
                    "periods": 3
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 6,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 40
                },
                "next_run": "2025-09-09T08:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 35,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 600,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2023-08-03T16:30:53.158216Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-08-03T16:31:53.307494Z",
            "ended": "2023-08-03T18:44:14.677458Z",
            "start_waiting": "2023-08-03T16:31:53.178842Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 6
        },
        {
            "id": 2396,
            "name": "Mingren Handicap Title Tournament 2008",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Mingren Handicap Title Tournament 2008",
            "schedule": null,
            "title": {
                "id": 12,
                "name": "Mingren Handicap Title Tournament",
                "holder": {
                    "id": 43586,
                    "username": "zebra",
                    "country": "un",
                    "icon": "https://secure.gravatar.com/avatar/8ee5f8ab4e25f9e9779bbf118d6e47c0?s=64&d=retro",
                    "ratings": {
                        "version": 5,
                        "overall": {
                            "rating": 2049.406764235013,
                            "deviation": 64.63441086989961,
                            "volatility": 0.06006281525756723
                        }
                    },
                    "ranking": 31.528155947966628,
                    "professional": false,
                    "ui_class": ""
                },
                "rules": "chinese",
                "tournament_type": "s_elimination"
            },
            "tournament_type": "s_elimination",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 604800,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": null,
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2008-06-30T22:00:00Z",
            "ended": "2008-06-30T22:00:00Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/mingren_19.png",
            "player_count": 0
        },
        {
            "id": 103553,
            "name": "Blitz 13x13 Swiss Tournament 2023-05-23 07:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
            "schedule": {
                "id": 3,
                "name": "Blitz 13x13 Swiss Tournament",
                "rrule": "DTSTART:20250909T070000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:27:45.234995Z",
                "last_run": "2025-09-09T07:00:15.672859Z",
                "lead_time_seconds": 1800,
                "tournament_type": "swiss",
                "handicap": 0,
                "rules": "japanese",
                "size": 13,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 10,
                    "main_time": 300,
                    "periods": 5
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 6,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 40
                },
                "next_run": "2025-09-09T11:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 15,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 10,
                "main_time": 300,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2023-05-23T07:30:56.720049Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-05-23T07:31:56.853459Z",
            "ended": "2023-05-23T08:21:46.894444Z",
            "start_waiting": "2023-05-23T07:31:56.729018Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png",
            "player_count": 6
        },
        {
            "id": 103558,
            "name": "Blitz 13x13 Swiss Tournament 2023-05-23 11:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
            "schedule": {
                "id": 3,
                "name": "Blitz 13x13 Swiss Tournament",
                "rrule": "DTSTART:20250909T070000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:27:45.234995Z",
                "last_run": "2025-09-09T07:00:15.672859Z",
                "lead_time_seconds": 1800,
                "tournament_type": "swiss",
                "handicap": 0,
                "rules": "japanese",
                "size": 13,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 10,
                    "main_time": 300,
                    "periods": 5
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 6,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 40
                },
                "next_run": "2025-09-09T11:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 15,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 10,
                "main_time": 300,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2023-05-23T11:30:57.495580Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-05-23T11:31:56.883847Z",
            "ended": "2023-05-23T12:09:00.722979Z",
            "start_waiting": "2023-05-23T11:31:56.777574Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png",
            "player_count": 6
        },
        {
            "id": 98518,
            "name": "Live 19x19 Swiss Tournament 2023-01-02 12:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
            "schedule": {
                "id": 4,
                "name": "Live 19x19 Swiss Tournament",
                "rrule": "DTSTART:20250909T040000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:30:39.250689Z",
                "last_run": "2025-09-09T04:00:15.664907Z",
                "lead_time_seconds": 1800,
                "tournament_type": "swiss",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 30,
                    "main_time": 600,
                    "periods": 3
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 6,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 40
                },
                "next_run": "2025-09-09T08:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 35,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 600,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2023-01-02T12:30:29.121066Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-01-02T12:30:30.459871Z",
            "ended": "2023-01-02T14:19:59.227173Z",
            "start_waiting": "2023-01-02T12:30:30.297067Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 6
        }
    ]
}