List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=390
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60217,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=391",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=389",
    "results": [
        {
            "id": 141080,
            "name": "OGS GO",
            "director": {
                "id": 1239790,
                "username": "Starry Nights",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/9f2722d2f1ef13182a298f8b3c3f11e5-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1470.6551684499116,
                        "deviation": 63.18324926994453,
                        "volatility": 0.060041851363616346
                    }
                },
                "ranking": 23.846004997998595,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "สนุกๆ",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 81,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 2700,
                "period_time": 60,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 485,
                "name": "THAILAND GO",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 524,
                "icon": "https://user-uploads.online-go.com/51662af930ea8ccf8fe4335513ca2357-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-06-10T01:52:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 22,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2026-06-10T01:52:18.696414Z",
            "ended": "2026-06-10T01:57:28.216634Z",
            "start_waiting": "2026-06-10T01:52:18.641847Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/51662af930ea8ccf8fe4335513ca2357-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 59221,
            "name": "torneo intermedio avalado por AlanYeray16",
            "director": {
                "id": 739351,
                "username": "AlanYeray16",
                "country": "co",
                "icon": "https://user-uploads.online-go.com/12bf26f3afc4a69ad3a48e8d883409b8-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1628.4901310786706,
                        "deviation": 67.47679612013054,
                        "volatility": 0.05998710926973805
                    }
                },
                "ranking": 26.206038490756722,
                "professional": false,
                "ui_class": ""
            },
            "description": "torneo abalado por coin",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 120,
                "period_time": 30,
                "periods": 4
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4806,
                "name": "COIN Centro de Inteligencias",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 65,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-18T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 22,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-04-17T23:34:07.393003Z",
            "ended": "2020-04-18T01:10:38.935418Z",
            "start_waiting": "2020-04-17T23:34:06.675531Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 4242,
            "name": "Fast  DDK/SDK Correspondence Tournament",
            "director": {
                "id": 444,
                "username": "calantir",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/1ca918deb36ad77b1a43a9c36821e67e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1642.4248977989541,
                        "deviation": 64.22402737676741,
                        "volatility": 0.06008664057283799
                    }
                },
                "ranking": 26.403287149523827,
                "professional": false,
                "ui_class": ""
            },
            "description": "12 days absolute time per player.  Please don't join if you're not going to play actively or if you expect to go on vacation. The tournament will begin when 10 people have joined.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 11520,
            "time_control_parameters": {
                "total_time": 1036800,
                "time_control": "absolute"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 508,
                "name": "Fast Correspondence",
                "summary": "Tournaments for people who like to play quick correspondence games.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 829,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2015-02-28T17:03:00Z",
            "players_start": 10,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 14,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-01-17T12:28:07.970543Z",
            "ended": "2015-02-18T04:52:28.233354Z",
            "start_waiting": "2015-01-17T12:28:06.845473Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 101316,
            "name": "vhaswer",
            "director": {
                "id": 845981,
                "username": "deleted-2b50c1b5-a40a-4962-9623-393e8bf6b95c",
                "country": "uy",
                "icon": "https://user-uploads.online-go.com/4f804f84589b77fb951f8da36f0e5e6e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1293.4782880615553,
                        "deviation": 70.53548500880392,
                        "volatility": 0.06196015099157038
                    }
                },
                "ranking": 20.874168722955073,
                "professional": false,
                "ui_class": ""
            },
            "description": "wsdf\ngggff",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 90782,
            "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": 8883,
                "name": "WSOIHHNNININ",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 5,
                "icon": "https://user-uploads.online-go.com/2c12c088376074a602d72bb644581c65-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-03-20T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 13,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-03-20T01:31:52.245070Z",
            "ended": "2023-03-20T01:38:04.756517Z",
            "start_waiting": "2023-03-20T01:31:52.126179Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/2c12c088376074a602d72bb644581c65-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 95083,
            "name": "Beginner's correspondence tournament",
            "director": {
                "id": 1185877,
                "username": "TranBao",
                "country": "vn",
                "icon": "https://user-uploads.online-go.com/67d7d186b94fc74fe63b005140aead0c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1062.5684379000202,
                        "deviation": 67.49551965741608,
                        "volatility": 0.06013509340549254
                    }
                },
                "ranking": 16.32181601753779,
                "professional": false,
                "ui_class": ""
            },
            "description": "Welcome to join the tournament to have a lot of correspondence games. Pairing is according to strength.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 25,
                "name": "Go Basics",
                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 18039,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-09-29T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "random",
            "min_ranking": 10,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-10-11T00:23:23.433756Z",
            "ended": "2022-11-04T13:59:19.568422Z",
            "start_waiting": "2022-10-11T00:23:23.308600Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 99715,
            "name": "4th Trying for SDK, fast round robin",
            "director": {
                "id": 886972,
                "username": "Babbo Bruno",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/3a86884a3c89d9e4d9b53b217b0675cf-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1013.6056798919265,
                        "deviation": 64.27889420627201,
                        "volatility": 0.05979014114117548
                    }
                },
                "ranking": 15.229712957385757,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "For those of us trying to move from DDK to SDK.\nPlease note you must average at least 4 plays per day.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 23651,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 21600,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 508,
                "name": "Fast Correspondence",
                "summary": "Tournaments for people who like to play quick correspondence games.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 829,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-02-11T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 17,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-02-11T16:00:13.721588Z",
            "ended": "2023-03-25T18:57:07.362024Z",
            "start_waiting": "2023-02-11T16:00:12.944401Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 115995,
            "name": "On the SDK bubble II - fast round robin",
            "director": {
                "id": 886972,
                "username": "Babbo Bruno",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/3a86884a3c89d9e4d9b53b217b0675cf-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1013.6056798919265,
                        "deviation": 64.27889420627201,
                        "volatility": 0.05979014114117548
                    }
                },
                "ranking": 15.229712957385757,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "This is a faster tournament - three plays per day - use conditional moves to keep up.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 32219,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 28800,
                "initial_time": 432000,
                "max_time": 432000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 24,
                "name": "Double Digit Kyu Room",
                "summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 3677,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2024-05-19T13:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 17,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-05-19T13:00:51.093053Z",
            "ended": "2024-06-27T11:33:57.488677Z",
            "start_waiting": "2024-05-19T13:00:50.822850Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 116993,
            "name": "Study group tournament 2",
            "director": {
                "id": 985178,
                "username": "dacxxxx100",
                "country": "_DOOP",
                "icon": "https://secure.gravatar.com/avatar/01805593322222442db5bb6ee0ae0a46?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1067.5825762409918,
                        "deviation": 62.76032137154728,
                        "volatility": 0.05997837352809634
                    }
                },
                "ranking": 16.430801264321094,
                "professional": false,
                "ui_class": ""
            },
            "description": "Long time game tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 259200,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 43,
                "name": "Kyu Level Study Group",
                "summary": "A group for kyu level players! Join, play tournaments, and have fun. Thanks for being a part of our community!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8920,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-06-29T19:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 10,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-06-29T19:00:16.111137Z",
            "ended": "2025-04-16T13:25:46.374119Z",
            "start_waiting": "2024-06-29T19:00:15.913788Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 106902,
            "name": "Third tournament - Round Robin",
            "director": {
                "id": 1290047,
                "username": "TaroMan",
                "country": "zz",
                "icon": "https://user-uploads.online-go.com/0a1bf82f79b8cfa1ec48474db6a9488f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1074.5194898914124,
                        "deviation": 64.06811999242666,
                        "volatility": 0.05991128509978694
                    }
                },
                "ranking": 16.580738202358354,
                "professional": false,
                "ui_class": ""
            },
            "description": "This will be round-robin style, so expect many games coming at once. Enjoy!",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 91187,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "main_time": 604800,
                "period_time": 86400,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 13496,
                "name": "Happy Beginners",
                "summary": "Good luck and have fun everyone :)",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 12,
                "icon": "https://user-uploads.online-go.com/30720022a6506335acd2ce745076871f-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-09-01T07:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 8,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-09-01T16:30:10.741673Z",
            "ended": "2023-09-19T03:39:18.694326Z",
            "start_waiting": "2023-09-01T16:30:10.655033Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/30720022a6506335acd2ce745076871f-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 16048,
            "name": "Go Basics Meet",
            "director": {
                "id": 163711,
                "username": "001616542",
                "country": "sg",
                "icon": "https://user-uploads.online-go.com/112e960909fadcf12d30a612a9bc0f91-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1331.5389314312727,
                        "deviation": 66.30657214573475,
                        "volatility": 0.06021468057452146
                    }
                },
                "ranking": 21.545528620420647,
                "professional": false,
                "ui_class": ""
            },
            "description": "This tournament is very fun. Please join it. This tournament does not allow vacation. If anyone goes on vacation, he/she will be out of the tournament.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 611520,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 604800,
                "main_time": 604800,
                "periods": 10
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 25,
                "name": "Go Basics",
                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 18039,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2016-04-02T12:30:00Z",
            "players_start": 7,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 8,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2016-04-02T12:30:20.556733Z",
            "ended": "2016-11-27T10:06:45.470499Z",
            "start_waiting": "2016-04-02T12:30:19.639810Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 9,
            "ranked": true
        }
    ]
}