List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=623
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "name": "Mid-Speed Open (9x9, Hi-K)  #3",
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                "username": "eaglejoy",
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            "description": "Note: This time seting is equivalent to “<strong>1 move</strong> per calendar day per player”.\n\n<h2>Additional rules</h2>\n<ul>\n<li>This Open match welcome the players who have no apologyless time-out in recent 20 correspondence games(If you don't meet this requirement, you may take part in our 'Time-out Players Only' match.)</li>\n<li>Pause or Vacation mode is not allowed</li>\n<li>The participants whose ratings are far higher/lower than the average ratkings of opponents will get adjusted points; for instance, 2 kyus higher or lower will be plus or minus 0.5 result points.</li>\n</ul>\n<h2>Attention</h2>\n\nDo I master the timing well enough so that I have 95% probability to avoid time-out?\n\nI know that if I have no time to complete a game for some reasons, or if I feel frustrated by losing, the proper way is to resign and say sorry to my opponent, rather than letting time-out happen.\n<h2>Tips</h2>\n\nI know how to use Plan Conditional Moves to speed up (such as Sente, the big value point at endgame…).\n\nI know this is a fast corr., so I will apply the highest priority to it in my Active Games Lists.",
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                "name": "Mid-speed",
                "summary": "Middle speed matches, not so hurry, not so slow.",
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        {
            "id": 115394,
            "name": "Best tournament ever!😝😝😝",
            "director": {
                "id": 1265911,
                "username": "WillZ",
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            },
            "description": "Good luck!",
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            "is_open": true,
            "exclude_provisional": true,
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                "id": 13797,
                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
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        {
            "id": 13789,
            "name": "Japan Open 19x19",
            "director": {
                "id": 109444,
                "username": "VPshunt",
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            "description": "A Happy New Year and my birthday;)",
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                "summary": "",
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            "id": 121205,
            "name": "future world (1-4k)",
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            },
            "description": "Let us find the future.",
            "schedule": null,
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            "rules": "chinese",
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            "is_open": true,
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            "group": {
                "id": 13797,
                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
                "require_invitation": false,
                "is_public": true,
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            "time_start": "2024-11-10T11:51:00Z",
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            "started": "2024-11-10T11:51:12.620012Z",
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        },
        {
            "id": 129035,
            "name": "telmich's experimental tournament - random round 3",
            "director": {
                "id": 1524436,
                "username": "telmich",
                "country": "ch",
                "icon": "https://secure.gravatar.com/avatar/ebdfc657470c327d3dbda9a2e3de7522?s=64&d=retro",
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                },
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                "professional": false,
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            },
            "description": "Still experimenting with the tournament settings to make the tournament most fun.\n\nThis is a simultaneous McMahon, meaning games start in parallel. It also uses random pairing in all steps so that you get to play not in slaughter mode (against the strongest/weakest), but someone you would not normally play with.\n\nThe previous tournament (https://online-go.com/tournament/128245) uses double elimination, which seems to be waiting for everyone to finish - not in this one!\n\nMore to read for those who are interested:\n\nhttps://en.wikipedia.org/wiki/McMahon_system_tournament\n\nhttps://senseis.xmp.net/?McMahonPairing",
            "schedule": null,
            "title": null,
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                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 604800,
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                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 15384,
                "name": "Wait, don't go!",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 4,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2025-06-23T02:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-06-23T02:00:28.546292Z",
            "ended": null,
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            "board_size": 19,
            "active_round": 2,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 18,
            "ranked": true
        },
        {
            "id": 89075,
            "name": "9x9 Mini League 1k-9k #17",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
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                },
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                "ui_class": ""
            },
            "description": "Special league for players between 9kyu and 1kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
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            "title": null,
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            "handicap": 0,
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            },
            "is_open": true,
            "exclude_provisional": true,
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                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
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                "is_public": true,
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            "time_start": "2022-05-01T20:00:00Z",
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            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-04-29T10:45:22.069403Z",
            "ended": "2022-05-29T01:18:23.896135Z",
            "start_waiting": "2022-04-29T10:45:21.926746Z",
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        },
        {
            "id": 130025,
            "name": "Servus Oida Open Tournament #16",
            "director": {
                "id": 1285178,
                "username": "VikingKoala",
                "country": "eu",
                "icon": "https://user-uploads.online-go.com/aa9209bd96e427a6ff7e102b893f9af0-64.png",
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                },
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                "professional": false,
                "ui_class": "supporter"
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            "description": "McMahon Kyu Player Tournament",
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            "title": null,
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            },
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            "group": {
                "id": 5720,
                "name": "Outside Go7",
                "summary": "Die Gruppe für alle, die sonst im Go7 spielen.",
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                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 47,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
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            "time_start": "2025-09-16T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 15,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-08-18T07:24:32.040086Z",
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            "active_round": 3,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 69250,
            "name": "Good 😌",
            "director": {
                "id": 841903,
                "username": "Clayton 2012",
                "country": "hk",
                "icon": "https://secure.gravatar.com/avatar/acf053bd9afd8eb70f1ce036e1cd7197?s=64&d=retro",
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                },
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                "professional": false,
                "ui_class": ""
            },
            "description": "Have a good game",
            "schedule": null,
            "title": null,
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            "handicap": 0,
            "rules": "aga",
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                "time_control": "fischer",
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                "time_increment": 86400,
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            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 3852,
                "name": "Hong Kong ",
                "summary": "First priority : HK people join plz                                                                     \nThis group welcomes everyone, but only if you don't be rude.",
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                "admin_only_tournaments": false,
                "hide_details": false,
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            "auto_start_on_max": false,
            "time_start": "2020-12-22T08:00:00Z",
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            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slide",
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            "started": "2020-12-22T12:46:17.864516Z",
            "ended": "2020-12-26T13:48:43.586661Z",
            "start_waiting": "2020-12-22T12:46:17.747464Z",
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            "player_count": 3,
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        },
        {
            "id": 116177,
            "name": "Good for \"无间勤碁术化 GO Advance forward forever\" every day",
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            "description": "Be good for 无间勤碁术化 GO Advance forward forever!\n Nice tournaments are on the way.\n(无间勤碁术化 GO Advance forward forever is nice!)",
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            "is_open": true,
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            "group": {
                "id": 13797,
                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
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            "time_start": "2024-05-21T11:00:00Z",
            "players_start": 4,
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            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 29,
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