List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=5332
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "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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            "description": "這個比賽限20-1級棋手",
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            "description": "Hola, juguemos.",
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                "username": "李朗銳",
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            "description": "This isa super fast tournament!",
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            "group": {
                "id": 5925,
                "name": "Group for GO",
                "summary": "Don't have a group? No problem, just join this group!",
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                "admin_only_tournaments": false,
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        {
            "id": 56436,
            "name": "A tournament during summer for Kyu players 2020",
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                "id": 681206,
                "username": "the loser",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/cb9be7042776ad032de2e680e0e05d68-64.png",
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                },
                "ranking": 21.455352322496815,
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            },
            "description": "A Simultaneous McMahon typed tournament that only Kyu players can come.",
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                "time_control": "fischer",
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                "id": 4032,
                "name": "Wu Family",
                "summary": "",
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        {
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            "name": "Taiwanese",
            "director": {
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                "username": "nicodaisuki",
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            "description": "Taiwan is a country!",
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                "id": 1144,
                "name": "Taiwanese",
                "summary": "Mostly Taiwanese!\n\nlet us know if you want to be admin. Please take great care, thank you!",
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        {
            "id": 116590,
            "name": "Kyu Players Correspondence McMahon 19x19",
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                "country": "_Olympic_Movement",
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            "description": "Have fun!",
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            "handicap": 0,
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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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        {
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            "name": "RS: The Battlefield of Single Digit",
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                "username": "MAESTRO of BADUK",
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            "description": "This is for players who want to enjoy fast correspondence match \n\nSingle Elimination for 18k~1k\n\nStart time: 1day \n\nFischer:: 6 hours\n\nMax. Time: 2 days\n\n*****\nRestricted Rank: 1k \n\nPlayers who reached 1 dan within 30 days before the tournament announcement date but have since dropped back to 1k are not eligible to participate. (Reference date: 30 days prior to Feb.21.2026 )\n\n*****\nThe winner will receive a seeded invitation to the main tournament of Road to Dan, a regular tournament hosted by the RS group. \n\n(We recommend you to be a member of the RS group to receive an invitation. According to the OGS system, we cannot send invitations to non-members.)\n\n*****\nBe careful below the rule;\n\nPlease make sure to disable the automatic vacation mode in your personal settings. https://online-go.com/settings/vacation\n\nNO PAUSE & NO VACATION, anyone who takes on the vacation or pauses a game, will be disqualified.\n\nPlease send the tournament director a message if you find that your opponent pauses or turns vacation mode on. \n*****",
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                "summary": "한국인 대환영. 한국인과 글로벌 유저들을 위한 모임, We are connected all together.",
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