List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=439
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60250,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=440",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=438",
    "results": [
        {
            "id": 77282,
            "name": "Handicap 19*19 6-18",
            "director": {
                "id": 743533,
                "username": "ss76",
                "country": "ru",
                "icon": "https://secure.gravatar.com/avatar/13929beaec2a082c41c26666dd917e5a?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 865.69965614538,
                        "deviation": 63.39878919317945,
                        "volatility": 0.06003400172803372
                    }
                },
                "ranking": 11.578235639193064,
                "professional": false,
                "ui_class": ""
            },
            "description": "Play GO",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": 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": 18046,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-07-09T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 12,
            "max_ranking": 24,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-07-09T16:00:31.026313Z",
            "ended": "2021-07-30T08:13:10.516107Z",
            "start_waiting": "2021-07-09T16:00:30.818342Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 125990,
            "name": "to BaRiNi(baduk children)",
            "director": {
                "id": 1710368,
                "username": "deleted-a78034f6-e072-4e22-87db-12535f220c5a",
                "country": "zz",
                "icon": "https://user-uploads.online-go.com/e5710f3e15ec7bbbbde357b719923759-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 630.8918800007385,
                        "deviation": 77.00241085670349,
                        "volatility": 0.059993781373019056
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "“Barini” means a baduk child. Don't be discouraged because you're a beginner. One day, your efforts will pay off and you will achieve great success.",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 702,
                "name": "Anime Lovers!",
                "summary": "A comunity group for anime and go game fans! ^-^",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 73,
                "icon": "https://user-uploads.online-go.com/eb86b6bc5e19e3038905a244b36e08a8-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-03-05T03:00:00Z",
            "players_start": 12,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 24,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-03-03T03:36:02.933661Z",
            "ended": "2026-01-21T02:17:32.820104Z",
            "start_waiting": "2025-03-03T03:36:01.983477Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/eb86b6bc5e19e3038905a244b36e08a8-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 73493,
            "name": "Let's Go 19x19 Round Robin",
            "director": {
                "id": 699769,
                "username": "jeroentjeb",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/bd4d71e7ea87028b6cc6540f291f4873-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1150.198098202036,
                        "deviation": 65.38476849071499,
                        "volatility": 0.06012309147754826
                    }
                },
                "ranking": 18.1563413549333,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Let's Go Round Robin 19x19!",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 46080,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 43200,
                "initial_time": 259200,
                "max_time": 432000
            },
            "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": 18046,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-04-08T16:00:00Z",
            "players_start": 8,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 15,
            "max_ranking": 24,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-04-08T16:00:35.220092Z",
            "ended": "2021-06-16T08:56:21.022514Z",
            "start_waiting": "2021-04-08T16:00:32.555158Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 1637,
            "name": "RaikB's mini-tournament",
            "director": {
                "id": 20675,
                "username": "RaikB",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/3d9fb2e977ccdddcc8efeb8fc6efc3ae?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1780.665751010124,
                        "deviation": 65.40966971956041,
                        "volatility": 0.0596596409427389
                    }
                },
                "ranking": 28.274121197571755,
                "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": 385,
                "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": 14,
            "max_ranking": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-05-21T08:24:14Z",
            "ended": "2012-05-21T06:24:14Z",
            "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": 1877,
            "name": "Gogas's mini-tournament",
            "director": {
                "id": 33115,
                "username": "Gogas",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/4c2edaf5cd233d610074596f38cde0b5?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1832.0378345676754,
                        "deviation": 67.28243758726465,
                        "volatility": 0.060216512628776815
                    }
                },
                "ranking": 28.932544383346094,
                "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": 385,
                "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": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-06-30T17:13:09Z",
            "ended": "2012-06-30T15:13:09Z",
            "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": 2295,
            "name": "Summer of Go",
            "director": {
                "id": 21252,
                "username": "mskoh52",
                "country": "kr",
                "icon": "https://secure.gravatar.com/avatar/66f6505237a98913a561d240cdc09dad?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1543.4916904669847,
                        "deviation": 68.23063417393804,
                        "volatility": 0.06003990679939349
                    }
                },
                "ranking": 24.96505717839437,
                "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": true,
            "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": 385,
                "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": 4,
            "max_ranking": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-07-19T19:19:06Z",
            "ended": "2013-10-23T10:49:38.397879Z",
            "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": 1500,
            "name": "mock turtle",
            "director": {
                "id": 913,
                "username": "orbitaleccentric",
                "country": "154",
                "icon": "https://secure.gravatar.com/avatar/53eeecc069afe75227d01613021745ee?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1180.925900945127,
                        "deviation": 66.13885750511251,
                        "volatility": 0.05873981407774538
                    }
                },
                "ranking": 18.766681978346508,
                "professional": false,
                "ui_class": "supporter"
            },
            "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": 385,
                "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": 13,
            "max_ranking": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-01-27T19:18:44Z",
            "ended": "2012-01-27T18:18:44Z",
            "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": 1697,
            "name": "hkviktor's mini-tournament",
            "director": {
                "id": 41483,
                "username": "hkviktor",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/b0020392a84460f36f18a343c9896287?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1517.2911792490033,
                        "deviation": 86.24028184306327,
                        "volatility": 0.06000548054622488
                    }
                },
                "ranking": 24.568716323191865,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "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": 385,
                "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": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-05-03T17:37:13Z",
            "ended": "2012-05-03T15:37:13Z",
            "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": 847,
            "name": "vstjrt's mini-tournament",
            "director": {
                "id": 21957,
                "username": "vstjrt",
                "country": "pl",
                "icon": "https://secure.gravatar.com/avatar/edb4758eba17e8dd04863970d8dc1d69?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1834.6842021133657,
                        "deviation": 62.84909341819725,
                        "volatility": 0.05996048151965761
                    }
                },
                "ranking": 28.965960289273507,
                "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": 385,
                "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": 14,
            "max_ranking": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2009-07-22T06:44:04Z",
            "ended": "2009-07-22T04:44:04Z",
            "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": 1896,
            "name": "apei's help",
            "director": {
                "id": 20502,
                "username": "nobush",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/d0c558f672e167a609363bda95da4150-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1392.079296186274,
                        "deviation": 64.4567405616214,
                        "volatility": 0.060684670372391225
                    }
                },
                "ranking": 22.574850804970033,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 432000,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 432000
            },
            "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": 385,
                "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": 6,
            "max_ranking": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-04-19T21:00:26Z",
            "ended": "2013-04-19T19:00:26Z",
            "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
        }
    ]
}