List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=452
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59756,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=453",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-subsequent_pairing_method&page=451",
    "results": [
        {
            "id": 6199,
            "name": "spring tournament",
            "director": {
                "id": 114073,
                "username": "elma.218",
                "country": "tr",
                "icon": "https://user-uploads.online-go.com/c451275c8b10a1d6c4052257d70c3cd1-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1787.7450440536031,
                        "deviation": 64.86830524553237,
                        "volatility": 0.05997042542835535
                    }
                },
                "ranking": 28.365974887281094,
                "professional": false,
                "ui_class": ""
            },
            "description": "Anyone allowed and invited",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "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": 447,
                "name": "turkey go players team",
                "summary": "Kader Oyunu (the game of destiny)",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 167,
                "icon": "https://user-uploads.online-go.com/39a22b3e039c1dfce80ceebe3004d6ac-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2015-04-04T07:28:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 15,
            "max_ranking": 30,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-04-04T07:28:06.406482Z",
            "ended": "2015-12-29T18:11:32.578596Z",
            "start_waiting": "2015-04-04T07:28:06.323618Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/39a22b3e039c1dfce80ceebe3004d6ac-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 64886,
            "name": "Blitz 13x13 Swiss Tournament 2020-08-30 19:30",
            "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": 3,
                "name": "Blitz 13x13 Swiss Tournament",
                "rrule": "DTSTART:20260525T230000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:27:45.234995Z",
                "last_run": "2026-05-25T23:00:16.565854Z",
                "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": "2026-05-26T03:00:00Z",
                "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": "2020-08-30T19:30:28.554812Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-08-30T19:31:28.018819Z",
            "ended": "2020-08-30T20:14:30.352869Z",
            "start_waiting": "2020-08-30T19:31:27.638411Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 25912,
            "name": "FSTS MonkeyGO Olympics 2017",
            "director": {
                "id": 87790,
                "username": "WiseBear",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/87e96797186d0c4042434c29195d8f12-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1104.0021061102002,
                        "deviation": 62.08308547890164,
                        "volatility": 0.06028822213904829
                    }
                },
                "ranking": 17.207368885691388,
                "professional": false,
                "ui_class": ""
            },
            "description": "The main tournament of FSTS. The winners will be immortalized on the group page.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 87840,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": true,
                "time_control": "fischer",
                "initial_time": 129600,
                "max_time": 259200,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 353,
                "name": "Four Seasons Tournament Series",
                "summary": "Серия турниров \"Четыре Сезона\"",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 623,
                "icon": "https://user-uploads.online-go.com/da3625d8ecb510c14d65689ea409862b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2017-05-22T02:00:00Z",
            "players_start": 20,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2017-05-22T02:00:20.942529Z",
            "ended": "2020-06-05T23:06:26.716538Z",
            "start_waiting": "2017-05-22T02:00:14.098970Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/da3625d8ecb510c14d65689ea409862b-15.png",
            "player_count": 89,
            "ranked": true
        },
        {
            "id": 67294,
            "name": "Live 19x19 Swiss Tournament 2020-11-01 08:30",
            "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:20260526T000000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:30:39.250689Z",
                "last_run": "2026-05-26T00:00:16.591034Z",
                "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": "2026-05-26T04:00:00Z",
                "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": "2020-11-01T08:30:41.694965Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-11-01T08:30:43.322811Z",
            "ended": "2020-11-01T09:57:25.451259Z",
            "start_waiting": "2020-11-01T08:30:42.963041Z",
            "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": 75818,
            "name": "CHSPJ WeiQi",
            "director": {
                "id": 998032,
                "username": "CHSPJ WeiQi",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/e7882a9b927dc1d1606800f852249df7?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1685.9580923665997,
                        "deviation": 111.51463363951173,
                        "volatility": 0.05999379484557542
                    }
                },
                "ranking": 27.008897099426854,
                "professional": false,
                "ui_class": ""
            },
            "description": "一起下围棋",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 3,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "blitz",
                "pause_on_weekends": false,
                "total_time": 300
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 9188,
                "name": "CHSPJ WeiQi",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 24,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-06-01T08:10:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2021-06-01T08:10:54.581578Z",
            "ended": "2021-06-01T08:49:55.857155Z",
            "start_waiting": "2021-06-01T08:10:54.127497Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 46551,
            "name": "13x13 Double Elimination",
            "director": {
                "id": 623824,
                "username": "Frumpamine",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/49a4922ef8d601c2fe306b093af95c6b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "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<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": 594,
                "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-12-26T02:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 12,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-07T18:06:03.210385Z",
            "ended": "2020-08-30T18:08:25.763422Z",
            "start_waiting": "2020-04-07T18:06:02.563662Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 64616,
            "name": "Kuwabara Honimbou first look at Hikaru - Ninth Edition",
            "director": {
                "id": 15530,
                "username": "Julko",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/71fa797ba41fd26c92f7ed5fda17613a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 851.2588228077219,
                        "deviation": 68.19950175851098,
                        "volatility": 0.05927254587052522
                    }
                },
                "ranking": 11.188810758957569,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "To improve to beat Akira...",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "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": true,
            "group": {
                "id": 420,
                "name": "Hikaru no go club",
                "summary": "Sai is the way.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 765,
                "icon": "https://user-uploads.online-go.com/84c61392d7c5db993cba7656a5ebbc92-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-08-31T03:00:00Z",
            "players_start": 2,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-08-31T03:00:47.736998Z",
            "ended": "2020-12-03T02:29:44.771639Z",
            "start_waiting": "2020-08-31T03:00:47.457847Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/84c61392d7c5db993cba7656a5ebbc92-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 672,
            "name": "Foxiyama's mini-tournament",
            "director": {
                "id": 3320,
                "username": "Foxiyama",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/57a8d497b3e88bd21cdd563609e710f8?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1622.334240994461,
                        "deviation": 67.00201131335707,
                        "volatility": 0.05981947814294727
                    }
                },
                "ranking": 26.118362867912534,
                "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": "fischer",
                "initial_time": 259200,
                "max_time": 432000,
                "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": 12,
            "max_ranking": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2009-03-14T10:34:20Z",
            "ended": "2009-03-14T09:34:20Z",
            "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": 671,
            "name": "Fireworks!",
            "director": {
                "id": 23608,
                "username": "mould",
                "country": "gb",
                "icon": "https://secure.gravatar.com/avatar/9596c1b8d33b51488c3d4b64608574a1?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1541.8067656215044,
                        "deviation": 66.12670090123795,
                        "volatility": 0.05988500546120491
                    }
                },
                "ranking": 24.93977209521312,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 259200,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 259200
            },
            "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": 8,
            "max_ranking": 18,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2009-01-26T14:28:59Z",
            "ended": "2009-01-26T13:28:59Z",
            "start_waiting": null,
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 49203,
            "name": "Training Ground Class 3 July 2019",
            "director": {
                "id": 87790,
                "username": "WiseBear",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/87e96797186d0c4042434c29195d8f12-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1104.0021061102002,
                        "deviation": 62.08308547890164,
                        "volatility": 0.06028822213904829
                    }
                },
                "ranking": 17.207368885691388,
                "professional": false,
                "ui_class": ""
            },
            "description": "If you want to be stronger, then you should often play with those who are a little stronger than you. Training Grounds tournaments provide you with this opportunity.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3516,
                "name": "Game Of Stones",
                "summary": "This group is no longer operated.",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 143,
                "icon": "https://user-uploads.online-go.com/439f945317b077e50df083e0d0f09ce5-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-07-11T01:00:00Z",
            "players_start": 6,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2019-07-05T11:21:17.572805Z",
            "ended": "2020-11-15T21:07:41.971393Z",
            "start_waiting": "2019-07-05T11:21:15.199658Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/439f945317b077e50df083e0d0f09ce5-15.png",
            "player_count": 18,
            "ranked": true
        }
    ]
}