List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=5658
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59544,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=5659",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=5657",
    "results": [
        {
            "id": 47478,
            "name": "19x19 D.E. (Chinese Rules)",
            "director": {
                "id": 582363,
                "username": "EagleEye",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/9280f8ad3a78be41ed99ab34396e9646-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1112.2104026593283,
                        "deviation": 63.20164792269633,
                        "volatility": 0.06002478445949194
                    }
                },
                "ranking": 17.37885328374442,
                "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<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.<BR><BR>",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 45120,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 259200,
                "time_increment": 43200,
                "speed": "correspondence"
            },
            "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": 591,
                "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2019-05-01T01:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-05-01T01:00:06.602234Z",
            "ended": "2020-04-05T16:15:19.465410Z",
            "start_waiting": "2019-05-01T01:00:06.232984Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 90760,
            "name": "South Wales Online 19 x 19",
            "director": {
                "id": 57913,
                "username": "welshgoplayer",
                "country": "_Wales",
                "icon": "https://user-uploads.online-go.com/c83615f79f5ce04bb0f8fb3285432794-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1714.8596864929577,
                        "deviation": 66.02578629413847,
                        "volatility": 0.06006063463307318
                    }
                },
                "ranking": 27.40238364045381,
                "professional": false,
                "ui_class": ""
            },
            "description": "Have Fun!",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 1056,
                "name": "Amguro Cymru/Welsh Go",
                "summary": "Gall Amguro Cymru a'i frindiau gwastrafu amser ar y we yma. Wales Go Club and friends can waste time on the Internet here. FB site here https://www.facebook.com/groups/18259266008 Discord https://discord.gg/YUw5PXYr",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 45,
                "icon": "https://user-uploads.online-go.com/e3e97d165f07879b01e4615acf6d18d4-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-06-17T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2022-06-17T11:00:17.323090Z",
            "ended": "2023-02-04T07:46:19.740834Z",
            "start_waiting": "2022-06-17T11:00:16.587576Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/e3e97d165f07879b01e4615acf6d18d4-15.png",
            "player_count": 23,
            "ranked": true
        },
        {
            "id": 108808,
            "name": "Live 19x19 Swiss Tournament 2023-10-24 12:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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:20260502T000000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:30:39.250689Z",
                "last_run": "2026-05-02T00:00:48.862063Z",
                "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": "2026-05-02T04:00:00Z",
                "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": "2023-10-24T12:30:35.522343Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-10-24T12:30:35.759384Z",
            "ended": "2023-10-24T13:37:09.851428Z",
            "start_waiting": "2023-10-24T12:30:35.570371Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 58584,
            "name": "Live 19x19 Swiss Tournament 2020-04-06 16:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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:20260502T000000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:30:39.250689Z",
                "last_run": "2026-05-02T00:00:48.862063Z",
                "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": "2026-05-02T04:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "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": "2020-04-06T16:30:02.746228Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-04-06T16:30:04.775799Z",
            "ended": "2020-04-06T18:17:06.731638Z",
            "start_waiting": "2020-04-06T16:30:03.744350Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 755,
            "name": "coldfire08's mini-tournament",
            "director": {
                "id": 19449,
                "username": "coldfire08",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/f3bedd342c746f594a4966c35c0f07b8?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1840.339613202976,
                        "deviation": 77.32198953718793,
                        "volatility": 0.05998801743815066
                    }
                },
                "ranking": 29.037210369083574,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 17,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2009-04-01T00:48:41Z",
            "ended": "2009-03-31T22:48:41Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 58586,
            "name": "Corona turnir Velika Gorica",
            "director": {
                "id": 158690,
                "username": "ribabo",
                "country": "hr",
                "icon": "https://secure.gravatar.com/avatar/1be96c26570c3984b6a5e58ef46ecdca?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1630.5958423159552,
                        "deviation": 64.22505101415642,
                        "volatility": 0.05999568887039349
                    }
                },
                "ranking": 26.235953149237222,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Opis turnira",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 70,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 3600,
                "period_time": 30,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4854,
                "name": "VG OGS 01",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-26T08:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "invite",
            "started": "2020-04-26T08:00:02.845018Z",
            "ended": "2020-04-26T13:01:32.465453Z",
            "start_waiting": "2020-04-26T08:00:01.683177Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 64626,
            "name": "Live 19x19 Swiss Tournament 2020-08-23 12:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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:20260502T000000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:30:39.250689Z",
                "last_run": "2026-05-02T00:00:48.862063Z",
                "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": "2026-05-02T04:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "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": "2020-08-23T12:30:01.664067Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-08-23T12:30:03.131541Z",
            "ended": "2020-08-23T14:35:17.107139Z",
            "start_waiting": "2020-08-23T12:30:02.769036Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 58832,
            "name": "Oster-Go-Treffen: Ostersonntag-Nachmittag",
            "director": {
                "id": 739466,
                "username": "Wilhelm_BadenGo",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/f1ae93890215cad17648917be321fc97-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1167.9473530030036,
                        "deviation": 240.54409932754783,
                        "volatility": 0.060008152519407096
                    }
                },
                "ranking": 18.510851705624017,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Willkommen zum Extra-Turnier am Sonntag-Nachmittag\n\n- da die Vormittagsrunde 2 (von 3) um 13:30 noch läuft - verschiebt sich das Turnier hier.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 31,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 15,
                "initial_time": 1500,
                "max_time": 2400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 4816,
                "name": "Baden-Go-Treffen Karlsruhe",
                "summary": "Gruppe für offene Online-Turniere des Badischen Go-Vereins",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 114,
                "icon": "https://user-uploads.online-go.com/87e12d57033a4663cc2a5dd4768d1aa6-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-12T13:30:00Z",
            "players_start": 2,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2020-04-12T13:30:09.792868Z",
            "ended": "2020-04-12T16:46:36.200348Z",
            "start_waiting": "2020-04-12T13:30:09.326678Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/87e12d57033a4663cc2a5dd4768d1aa6-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 756,
            "name": "MatCauthon's open mini-tournament 2",
            "director": {
                "id": 5832,
                "username": "MatCauthon",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a9be40b67c0a3a60fb51305a6ce43db2?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2084.004117162902,
                        "deviation": 63.24857547273913,
                        "volatility": 0.05989514098950473
                    }
                },
                "ranking": 31.915703882753515,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 383,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "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": "2009-03-25T13:40:39Z",
            "ended": "2009-03-25T12:40:39Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 3416,
            "name": "CoQ OGS Test Competition",
            "director": {
                "id": 3431,
                "username": "LotS",
                "country": "my",
                "icon": "https://user-uploads.online-go.com/698d8d99ffdbb2ceea9092cc19f45966-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2007.0294196908103,
                        "deviation": 68.67826745084456,
                        "volatility": 0.06008944774681114
                    }
                },
                "ranking": 31.04444503836489,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "This is to test how the OGS competition works.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 91200,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 432000,
                "max_time": 864000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 436,
                "name": "TARUMT Weiqi CoQ",
                "summary": "For TARUMT weiqi CoQ student",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 3611,
                "icon": "https://user-uploads.online-go.com/0985e043b71ea3001c5d32b9e625d369-64.png"
            },
            "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": true,
            "exclusivity": "group",
            "started": "2014-11-24T15:12:14.757483Z",
            "ended": "2015-02-08T16:06:46.688266Z",
            "start_waiting": "2014-11-24T15:12:14.404290Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/0985e043b71ea3001c5d32b9e625d369-15.png",
            "player_count": 0,
            "ranked": true
        }
    ]
}