List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-auto_start_on_max&page=420
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60137,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-auto_start_on_max&page=421",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-auto_start_on_max&page=419",
    "results": [
        {
            "id": 8110,
            "name": "Open Tournament",
            "director": {
                "id": 103791,
                "username": "Ashurax",
                "country": "jp",
                "icon": "https://user-uploads.online-go.com/e94ed1cb20a274b9de17988e54067e77-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1323.2452014190344,
                        "deviation": 61.103655008951236,
                        "volatility": 0.05992979294361819
                    }
                },
                "ranking": 21.400883734202964,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "First BIrmingham Club Tournament on OGS.\nAGA rules.\nEveryone is welcome to join.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "aga",
            "time_per_move": 340,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 300,
                "main_time": 3600,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 490,
                "name": "Birmingham Go Club",
                "summary": "We meet in the Friends of the Earth warehouse every Thursday from 6pm.\nFor more details check the facebook group https://www.facebook.com/groups/bhamgo\nIf anyone is passing by in Birmingham, England. please drop in and visit.\n\nFeel free to make tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 36,
                "icon": "https://user-uploads.online-go.com/e94ed1cb20a274b9de17988e54067e77-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2015-06-13T19:30:00Z",
            "players_start": 5,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 0,
            "max_ranking": 30,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-06-13T19:30:15.979552Z",
            "ended": "2015-06-13T23:56:24.950932Z",
            "start_waiting": "2015-06-13T19:30:15.868979Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/e94ed1cb20a274b9de17988e54067e77-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 127610,
            "name": "19x19 Open League #84",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1324.0959462703095,
                        "deviation": 69.99372712007725,
                        "volatility": 0.06023788322736291
                    }
                },
                "ranking": 21.41576262051663,
                "professional": false,
                "ui_class": ""
            },
            "description": "Open league for everyone. Tournament will be started as soon as 10 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "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": 12599,
                "name": "GO Special Tournaments",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 78,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-04-27T21:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-04-25T14:35:29.581426Z",
            "ended": "2025-09-27T10:48:24.587447Z",
            "start_waiting": "2025-04-25T14:35:29.063737Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 11392,
            "name": "Tournament BJ",
            "director": {
                "id": 143441,
                "username": "GO 2015",
                "country": "hr",
                "icon": "https://user-uploads.online-go.com/1d484170237a1841a15e135bf67ef441-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1409.380850420779,
                        "deviation": 71.72359569805504,
                        "volatility": 0.06010797334851287
                    }
                },
                "ranking": 22.860798883479337,
                "professional": false,
                "ui_class": ""
            },
            "description": "Exclusivity",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 193,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 180,
                "main_time": 1200,
                "periods": 2
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 555,
                "name": "GO Croatia",
                "summary": "Are you looking for a fun and enjoyment?. Will here we are, we encourage you to join our group. Everyone is welcome,",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17,
                "icon": "https://user-uploads.online-go.com/b2eb9ab3f64ddf5e3e24a6bbff9087a4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2015-10-07T09:49:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 35,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2015-10-09T18:42:30.525075Z",
            "ended": "2015-10-09T19:43:21.979953Z",
            "start_waiting": "2015-10-09T18:42:30.360015Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/b2eb9ab3f64ddf5e3e24a6bbff9087a4-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 78952,
            "name": "13x13 Double Elimination🐉",
            "director": {
                "id": 584481,
                "username": "Mulsiphix",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/f79dd274bd83ca6fdf5e2c1af119ba63-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1723.508332937557,
                        "deviation": 67.30621035483453,
                        "volatility": 0.06024145341136911
                    }
                },
                "ranking": 27.51884388340188,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n\n☆ This is a ‘Suicidal 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 locate players who are more competitive than your average opponent. A big part of improving your own skills is to have them tested by capable challengers. If you would like to be a part of more New Zealand rule set tournaments, check out our group for weekly opportunities.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "nz",
            "time_per_move": 44160,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 86400,
                "max_time": 172800
            },
            "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": true,
            "time_start": "2030-12-26T02:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-10-09T06:39:20.460568Z",
            "ended": "2023-02-19T16:10:03.277181Z",
            "start_waiting": "2022-10-09T06:39:20.260636Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 109102,
            "name": "Treino 1.1",
            "director": {
                "id": 832318,
                "username": "miguel0204",
                "country": "br",
                "icon": "https://secure.gravatar.com/avatar/471c6f87781deced9d324ef7093a8382?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1536.7653059344232,
                        "deviation": 61.99714416940849,
                        "volatility": 0.06001520224572081
                    }
                },
                "ranking": 24.863951296887677,
                "professional": false,
                "ui_class": ""
            },
            "description": "Treino1.1",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 34,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 120,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 13117,
                "name": "alunos verissimo",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 110,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2023-10-31T14:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-10-31T13:03:34.070085Z",
            "ended": "2023-10-31T13:21:22.883262Z",
            "start_waiting": "2023-10-31T13:03:34.009212Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 87205,
            "name": "3 -> 陳日祈 4 -> 蔡仲文",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "3 -> 陳日祈\n4 -> 蔡仲文",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7531,
                "name": "傳碁 C班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 87,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2022-03-13T04:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2022-03-13T03:48:14.683384Z",
            "ended": "2022-03-13T04:01:28.424253Z",
            "start_waiting": "2022-03-13T03:48:14.587824Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 86872,
            "name": "3 -> 李子霆 4 -> 梁誠至",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "3 -> 李子霆\n4 -> 梁誠至",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7531,
                "name": "傳碁 C班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 87,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2022-03-05T04:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2022-03-05T03:41:57.822808Z",
            "ended": "2022-03-05T04:01:08.625478Z",
            "start_waiting": "2022-03-05T03:41:57.780751Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 87214,
            "name": "1 -> 黃思齊 2 -> 殷諾泓",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "1 -> 黃思齊\n2 -> 殷諾泓",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7530,
                "name": "傳碁 D班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 71,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2022-03-13T06:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2022-03-13T05:55:39.552348Z",
            "ended": "2022-03-13T06:07:17.445226Z",
            "start_waiting": "2022-03-13T05:55:39.501372Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 100145,
            "name": "9x9 Open League #61",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1324.0959462703095,
                        "deviation": 69.99372712007725,
                        "volatility": 0.06023788322736291
                    }
                },
                "ranking": 21.41576262051663,
                "professional": false,
                "ui_class": ""
            },
            "description": "Open league for everyone. Tournament will be started as soon as 10 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 95543,
            "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": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 711,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-02-19T20:05:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-02-18T20:01:05.196938Z",
            "ended": "2023-04-29T23:02:34.929908Z",
            "start_waiting": "2023-02-18T20:01:04.582943Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 15290,
            "name": "KILO REN",
            "director": {
                "id": 230322,
                "username": "GOmaster4578",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/607174cd9900a29cf9a6ff97b7908fc0?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 911.6131248346973,
                        "deviation": 142.2301863924972,
                        "volatility": 0.059992212407949115
                    }
                },
                "ranking": 12.774573556751983,
                "professional": false,
                "ui_class": ""
            },
            "description": "LOL!!!",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86406,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 600,
                "max_time": 777600,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3,
                "name": "OGS",
                "summary": "An open group for folks' who like OGS!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1792,
                "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2016-02-29T23:51:00Z",
            "players_start": 10,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-06-20T04:21:54.931942Z",
            "ended": "2016-07-01T20:36:10.825996Z",
            "start_waiting": "2016-06-20T04:21:54.773287Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png",
            "player_count": 10,
            "ranked": true
        }
    ]
}