List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=min_ranking&page=4477
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60337,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=min_ranking&page=4478",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=min_ranking&page=4476",
    "results": [
        {
            "id": 59920,
            "name": "CLS First Ever Online Tournament",
            "director": {
                "id": 766536,
                "username": "THWCLS",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/b61dce2fdf0ca2fc2a14ea43b1b36f5e?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 979.4363615347038,
                        "deviation": 63.2998750826044,
                        "volatility": 0.05999648511733788
                    }
                },
                "ranking": 14.435853903816318,
                "professional": false,
                "ui_class": ""
            },
            "description": "This is a friendly tournament for CLS members. You have maximum time of 1 day to make a move (this pauses at weekends). Good luck!",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 87360,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 86400,
                "max_time": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5406,
                "name": "CLSGOSOC",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 20,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-05-01T12:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-05-01T12:07:20.076514Z",
            "ended": "2020-05-21T10:30:09.303203Z",
            "start_waiting": "2020-05-01T12:07:19.719441Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 135119,
            "name": "9x9 Open League #137",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1312.55354932251,
                        "deviation": 72.8521396181697,
                        "volatility": 0.060240921620802614
                    }
                },
                "ranking": 21.21307493166986,
                "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": 714,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-12-14T20:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-12-11T21:44:22.313296Z",
            "ended": "2026-02-02T21:45:50.974789Z",
            "start_waiting": "2025-12-11T21:44:21.543371Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 75709,
            "name": "Friendly 13*13",
            "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 to go",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6802,
                "name": "Beginner Go",
                "summary": "a group for beginners. come join us!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 6,
                "icon": "https://user-uploads.online-go.com/c7f2561134c3945ccb5995a7872e747f-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-05-30T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 22,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-05-30T17:00:13.213544Z",
            "ended": "2021-07-28T13:43:09.743377Z",
            "start_waiting": "2021-05-30T17:00:12.679033Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/c7f2561134c3945ccb5995a7872e747f-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 50295,
            "name": "Training Ground Class 7 August 2019",
            "director": {
                "id": 87790,
                "username": "WiseBear",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/87e96797186d0c4042434c29195d8f12-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1104.0021061102002,
                        "deviation": 62.08308547890164,
                        "volatility": 0.06028822213904829
                    }
                },
                "ranking": 17.207368885691388,
                "professional": false,
                "ui_class": ""
            },
            "description": "If you want to be stronger, then you should often play with those who are a little stronger than you. Training Grounds tournaments provide you with this opportunity.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3516,
                "name": "Game Of Stones",
                "summary": "This group is no longer operated.",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 143,
                "icon": "https://user-uploads.online-go.com/439f945317b077e50df083e0d0f09ce5-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-08-21T02:00:00Z",
            "players_start": 6,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2019-08-21T02:00:03.087545Z",
            "ended": "2020-11-17T21:55:31.701058Z",
            "start_waiting": "2019-08-21T02:00:01.760166Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/439f945317b077e50df083e0d0f09ce5-15.png",
            "player_count": 14,
            "ranked": true
        },
        {
            "id": 55419,
            "name": "5th Cosmo Tournament 19x19",
            "director": {
                "id": 446898,
                "username": "Dark Cosmos",
                "country": "150",
                "icon": "https://user-uploads.online-go.com/80006af13263a20bc006e67aba625553-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1892.8571702423064,
                        "deviation": 72.93769202214149,
                        "volatility": 0.05999417625510985
                    }
                },
                "ranking": 29.688588652541746,
                "professional": false,
                "ui_class": ""
            },
            "description": "Have fun",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 13440,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "total_time": 1209600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2844,
                "name": "CosmoSpirit",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 19,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2020-01-09T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-01-09T09:14:30.023766Z",
            "ended": "2020-05-20T12:48:37.579940Z",
            "start_waiting": "2020-01-09T09:14:27.126306Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 57771,
            "name": "Fast Correspondence DDK 2020-03-28",
            "director": {
                "id": 784,
                "username": "mlopezviedma",
                "country": "ar",
                "icon": "https://user-uploads.online-go.com/3e911828e4e25e61f8faede9d9277323-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1546.1538674294254,
                        "deviation": 62.03504989658016,
                        "volatility": 0.059739123217599915
                    }
                },
                "ranking": 25.004951341512772,
                "professional": false,
                "ui_class": "supporter moderator"
            },
            "description": "Please, avoid delaying your games using the vacation feature.\n\nAnalysis is enabled mainly to allow the use of conditional moves.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 30240,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 28800,
                "initial_time": 129600,
                "max_time": 172800
            },
            "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": "2020-03-28T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 23,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-03-28T00:00:20.032250Z",
            "ended": "2020-06-01T19:00:47.816861Z",
            "start_waiting": "2020-03-28T00:00:16.604945Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 61816,
            "name": "Kuwabara Honimbou first look at Hikaru - Eighth Edition",
            "director": {
                "id": 15530,
                "username": "Julko",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/71fa797ba41fd26c92f7ed5fda17613a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 840.9254122346891,
                        "deviation": 67.85718037927491,
                        "volatility": 0.05926866276317078
                    }
                },
                "ranking": 10.906073899268563,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "... still to beat akira",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 420,
                "name": "Hikaru no go club",
                "summary": "Sai is the way.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 770,
                "icon": "https://user-uploads.online-go.com/84c61392d7c5db993cba7656a5ebbc92-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-06-15T03:00:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-06-15T03:00:01.718018Z",
            "ended": "2020-08-22T21:09:06.908346Z",
            "start_waiting": "2020-06-15T03:00:01.518480Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/84c61392d7c5db993cba7656a5ebbc92-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 61589,
            "name": "tournament for begginers 2",
            "director": {
                "id": 768293,
                "username": "omnomboypizza5",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/25e70e23674cdc3743c5ae94c2b8ce78-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1155.1884784509273,
                        "deviation": 67.02026395251889,
                        "volatility": 0.060047964720994385
                    }
                },
                "ranking": 18.2565653124913,
                "professional": false,
                "ui_class": ""
            },
            "description": "a game for starters",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "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": 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": 1798,
                "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-06-07T02:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-06-08T03:23:57.077133Z",
            "ended": "2020-09-20T18:41:04.444697Z",
            "start_waiting": "2020-06-08T03:23:56.735668Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 52054,
            "name": "New Year Tournament",
            "director": {
                "id": 348886,
                "username": "nicodaisuki",
                "country": "tw",
                "icon": "https://user-uploads.online-go.com/694a06c83a5d6994819e6524d57b4f13-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1724.605004636006,
                        "deviation": 65.88111689435804,
                        "volatility": 0.06003268569255853
                    }
                },
                "ranking": 27.533569588846934,
                "professional": false,
                "ui_class": ""
            },
            "description": "Taiwan is a country!",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 2419200,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 2419200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1144,
                "name": "Taiwanese",
                "summary": "Mostly Taiwanese!\n\nlet us know if you want to be admin. Please take great care, thank you!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 182,
                "icon": "https://user-uploads.online-go.com/fe3a174d07946483a6050a9acfa63393-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-01-01T08:00:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-01-01T08:00:50.520102Z",
            "ended": null,
            "start_waiting": "2020-01-01T08:00:49.367054Z",
            "board_size": 19,
            "active_round": 8,
            "icon": "https://user-uploads.online-go.com/fe3a174d07946483a6050a9acfa63393-15.png",
            "player_count": 29,
            "ranked": true
        },
        {
            "id": 84512,
            "name": "Coronavirus tournament",
            "director": {
                "id": 1033726,
                "username": "deleted-0606f096-76c1-4d2b-a35d-85aa8ba5ee65",
                "country": "zz",
                "icon": "https://user-uploads.online-go.com/276e9decbb5e82facbd13358315a83a2-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1272.6965920513994,
                        "deviation": 74.22770391508293,
                        "volatility": 0.06001503551918644
                    }
                },
                "ranking": 20.499208478445507,
                "professional": false,
                "ui_class": ""
            },
            "description": "Something",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 186240,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 1209600,
                "period_time": 172800,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 9959,
                "name": "Battlefield",
                "summary": "Lots of tournaments.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 11,
                "icon": "https://user-uploads.online-go.com/35a32113b107d2c20dd88098e310591c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-01-10T07:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-01-10T07:00:34.952955Z",
            "ended": "2022-12-21T11:38:52.614182Z",
            "start_waiting": "2022-01-10T07:00:34.777017Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/35a32113b107d2c20dd88098e310591c-15.png",
            "player_count": 7,
            "ranked": true
        }
    ]
}