List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=exclude_provisional&page=667
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59686,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=exclude_provisional&page=668",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=exclude_provisional&page=666",
    "results": [
        {
            "id": 140306,
            "name": "JORNADA 9 DE ENTRENAMIENTO AVANZADO DE GO VERANO 2026",
            "director": {
                "id": 798920,
                "username": "vaik.kanik",
                "country": "mx",
                "icon": "https://user-uploads.online-go.com/2d6b90dc29878481490e8286eaaeb49f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.4360520663267,
                        "deviation": 60.60608070694204,
                        "volatility": 0.05973293265201747
                    }
                },
                "ranking": 17.652513448883038,
                "professional": false,
                "ui_class": ""
            },
            "description": "En el fondo no sólo se trata de vencer a los oponentes en el tablero de Go; se trata, sobre todo, de vencerse a uno mismo, momento a momento, día tras día, practicando el arte.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 62,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 900,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 14953,
                "name": "Kanik",
                "summary": "",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": true,
                "member_count": 19,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2026-05-17T00:35:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "invite",
            "started": "2026-05-17T00:35:50.091343Z",
            "ended": "2026-05-17T00:47:13.571839Z",
            "start_waiting": "2026-05-17T00:35:50.047806Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 77042,
            "name": "Swiss 07/03/2021 3:00 PM Japanese",
            "director": {
                "id": 943646,
                "username": "Alpha  Zero",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/9d1a77d931cc0e362543930820bcca4b?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1315.6819178542366,
                        "deviation": 65.26018585535951,
                        "volatility": 0.06000175020465574
                    }
                },
                "ranking": 21.268185492817235,
                "professional": false,
                "ui_class": ""
            },
            "description": "Tournament Long",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 2446080,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 2419200,
                "period_time": 2419200,
                "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": 17965,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-07-03T19:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-07-04T11:19:05.193699Z",
            "ended": "2023-01-31T23:01:33.756155Z",
            "start_waiting": "2021-07-04T11:19:05.039267Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 71141,
            "name": "Serene Go 9x9 2021-02-08",
            "director": {
                "id": 309835,
                "username": "Feijoa",
                "country": "xx",
                "icon": "https://user-uploads.online-go.com/933c836f564b271ba762aff02e654cf3-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1232.325061720747,
                        "deviation": 67.12381280230838,
                        "volatility": 0.06014671150663824
                    }
                },
                "ranking": 19.752961950805922,
                "professional": false,
                "ui_class": "supporter moderator"
            },
            "description": "A 9x9 handicap tournament.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "aga",
            "time_per_move": 611520,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 604800,
                "initial_time": 604800,
                "max_time": 1209600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 6635,
                "name": "Serene Go",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 8,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-02-10T06:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2021-02-09T19:07:01.589380Z",
            "ended": "2021-04-21T17:32:34.378406Z",
            "start_waiting": "2021-02-09T19:07:00.851039Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 1657,
            "name": "Bodysnatchersinc's mini-tournament",
            "director": {
                "id": 39751,
                "username": "Bodysnatchersinc",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/fb7b70fd4abfc61f565b5ed850897d35?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1504.9040445990145,
                        "deviation": 62.903096401498935,
                        "volatility": 0.06002709312879178
                    }
                },
                "ranking": 24.3789444840187,
                "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": 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": 0,
            "max_ranking": 1,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2011-12-26T05:36:22Z",
            "ended": "2011-12-26T04:36:22Z",
            "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": 132080,
            "name": "1ST WGN HANDICAP CUP",
            "director": {
                "id": 1849003,
                "username": "deleted-dc4a368c-a63e-4b46-84c8-8c2187bdf712",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/2b4dd198617f26b7af6eb83a60023160?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1984.0603806733193,
                        "deviation": 110.93473359041155,
                        "volatility": 0.05999716499718003
                    }
                },
                "ranking": 30.777981916525455,
                "professional": false,
                "ui_class": ""
            },
            "description": "Welcome to the first tournament of Worldwide Go Network! (Please consider joining the group there, we’ve got loads of resources there coming up at you!\n\nhttps://online-go.com/group/15664 https://online-go.com/group/15664\n\nWe would encourage weaker players to play the tournament by putting the paring method to random.\n\nhttps://online-go.com/group/15664 https://online-go.com/group/15664",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "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": 15664,
                "name": "Worldwide Go Network",
                "summary": "Worldwide Go Network provides you a safe environment to learn Go!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 157,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2025-10-01T02:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-10-01T02:01:10.916019Z",
            "ended": null,
            "start_waiting": "2025-10-01T02:00:48.947387Z",
            "board_size": 19,
            "active_round": 2,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 290,
            "ranked": true
        },
        {
            "id": 182,
            "name": "Kakashi_Hatake's mini-tournament for Naruto fans",
            "director": {
                "id": 5142,
                "username": "Kakashi_Hatake",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/bf80be6d0d9b0b9fa5602120a668ed23?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 941.7659563745926,
                        "deviation": 118.6638923660914,
                        "volatility": 0.05999634054616334
                    }
                },
                "ranking": 13.527899903757643,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 172800,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 432000,
                "time_increment": 172800
            },
            "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": "2007-02-05T12:23:00Z",
            "ended": "2007-07-02T18:51:00Z",
            "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": 140299,
            "name": "9x9 Open League #158",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1257.4677062675705,
                        "deviation": 69.47770027155092,
                        "volatility": 0.06021177612116814
                    }
                },
                "ranking": 20.220528581218108,
                "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": 698,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2026-05-24T19:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": null,
            "ended": null,
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 140334,
            "name": "19x19 Open League #134",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1257.4677062675705,
                        "deviation": 69.47770027155092,
                        "volatility": 0.06021177612116814
                    }
                },
                "ranking": 20.220528581218108,
                "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": 73,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2026-05-24T21:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": null,
            "ended": null,
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 1655,
            "name": "Recap on 13 in mini",
            "director": {
                "id": 39560,
                "username": "PaulGoHere",
                "country": "nl",
                "icon": "https://secure.gravatar.com/avatar/0f1ac5c7a15a71badb215341f6a92e15?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1278.9478325461664,
                        "deviation": 66.5445989038552,
                        "volatility": 0.06003370308511538
                    }
                },
                "ranking": 20.612638473303857,
                "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": false,
            "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": 4,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-04-30T15:40:23Z",
            "ended": "2012-04-30T13:40:23Z",
            "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": 1654,
            "name": "archeronrose's mini-tournament",
            "director": {
                "id": 40335,
                "username": "archeronrose",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/c58e1d7f945c17532341313114c34744?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1408.6507959205205,
                        "deviation": 73.72835800131871,
                        "volatility": 0.05999678955036402
                    }
                },
                "ranking": 22.84880415511564,
                "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": 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": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-03-26T19:47:43Z",
            "ended": "2012-03-26T17:47:43Z",
            "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
        }
    ]
}