List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=5603
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=5604",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=5602",
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                "username": "傳碁學園",
                "country": "un",
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            "ended": "2023-07-28T08:09:40.028349Z",
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        },
        {
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            "description": "hugigjuhydrfs7xidsfehuf7dkicjfgtkhuvrjdkifijvghdfjcikdjmfdbhcusxdkijmcxfbhcjkf",
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            },
            "is_open": true,
            "exclude_provisional": true,
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                "id": 4530,
                "name": "HKCGA 對局室",
                "summary": "\n同學想下棋可在下方留言,最好寫上自己棋力,方便對手設定合適讓子。 ( K = 級、 D = 段 )\n\nP.S. 此對局室只限 \" 香港兒童圍棋學院-網絡班 \" 學生使用。\n\n同學在此對局室,必須使用自己 \"中文全名\" 的帳號來對弈,敬請合作 !\n\n(hkcga2004)院長會不定時上線跟大家互相切磋,歡迎指教!",
                "require_invitation": false,
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                "hide_details": true,
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        },
        {
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                "username": "FUKO.S",
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                "icon": "https://user-uploads.online-go.com/aa170ff76e007cc7bc7a15709e85dbb8-64.png",
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            "description": "リーグ開始時に参加されているメンバーでの総あたり戦になります。(レーティングによる自動ハンデ付き)\n\nIt will be a round-robin tournament with automatic handicapping based on ratings.",
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                "id": 7692,
                "name": "Yushima Go Cafe (湯島囲碁喫茶)",
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            "start_waiting": "2025-11-14T10:00:06.274772Z",
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            "icon": "https://user-uploads.online-go.com/8246898de5c953274f7be81122b75b69-15.png",
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        {
            "id": 80616,
            "name": "Jianqiao Weiqi for Teachers",
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                "username": "20058",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/6e0005385f4f5085639a25483dd6adfe-64.png",
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            "description": "This is a pilot tournament for students who like the game and play a teaching game with higher level players. It is Open for everyone actually.",
            "schedule": null,
            "title": null,
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            "exclude_provisional": true,
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                "name": "Jianqiao Weiqi",
                "summary": "Weiqi Department is a small teaching group, which has 6 staff members and 107 students. It belongs to College of Journalism & Communications, Shanghai Jianqiao University.",
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            "icon": "https://user-uploads.online-go.com/09a5bcaf36521b1f9090ce4b3d955e02-15.png",
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            "id": 81847,
            "name": "just gamEEEEEEe",
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                "username": "Harry Bryant",
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                "icon": "https://secure.gravatar.com/avatar/4c99bd5d6eb6b527634d9cffe37cb77f?s=64&d=retro",
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            "description": "not exlain! just playyyy",
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                "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!",
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            "ended": "2022-06-06T04:21:33.239257Z",
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        {
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                "username": "wiadp1",
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            "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
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            "title": null,
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                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
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            "ranked": true
        },
        {
            "id": 108473,
            "name": "13x13 Open League #15",
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                "username": "wiadp1",
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            "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",
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                "name": "GO Special Tournaments",
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                "require_invitation": false,
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            "subsequent_pairing_method": "slaughter",
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            "ended": "2023-12-12T17:31:18.889350Z",
            "start_waiting": "2023-10-28T23:43:35.664020Z",
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        {
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                "id": 599102,
                "username": "🐬⚔️🐬 🍩🥂🕯️🌱",
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            "description": "Anyone is welcome, happy blitzing",
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                "name": "Blitz ⚡",
                "summary": "Welcome,\n\nBlitz style tourneys, please join if you like speedy Go!\n\n\n",
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        {
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            "description": "June13x13 Swiss, slide and strength.\n\nVacation and pauses not allowed, at discretion of director.",
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                "id": 7162,
                "name": "Greg's Tournament Group",
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                "is_public": true,
                "admin_only_tournaments": false,
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            "time_start": "2022-06-01T15:00:00Z",
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            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
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