List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=analysis_enabled&page=4434
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=analysis_enabled&page=4433",
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        {
            "id": 105822,
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                "username": "wiadp1",
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            "description": "Special league for players between 25kyu and 10kyu. 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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                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
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                "admin_only_tournaments": false,
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            "id": 88527,
            "name": "April Champion 🏆",
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                "username": "kevinmath",
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            },
            "description": "vacation will be banned.",
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                "time_control": "canadian",
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            "ended": "2022-06-22T06:21:06.528925Z",
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            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
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        {
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            "description": "Description is required so here.\n\nhttps://youtu.be/dQw4w9WgXcQ\n\n\nOGS disliked my other titles\n\n\nAlso this is intended for the Gen Z group. If I make it members only then others of us will not even know that this group exists.\n\n\nI guess others can join as well.",
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                "name": "黎老師群組",
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        {
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            "name": "Karl vs Wanwen",
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                "name": "SP Weiqi 2020/2021",
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            "subsequent_pairing_method": "random",
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        {
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                "username": "Haaland Can",
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