List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-players_start&page=523
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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        {
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            "name": "9x9 Open League #52",
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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/10842",
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                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
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            "id": 18783,
            "name": "Capture Go 4th Cycle",
            "director": {
                "id": 66298,
                "username": "Peter ;)",
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                "id": 196,
                "name": "FUN GO FUN",
                "summary": "Welcome to FUN GO FUN.",
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                "username": "richyfourtytwo",
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            "description": "Part of an arena tournament. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as there are 10 players.",
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            "description": "Part of an arena tournament - 2026. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as it is full (10 players).",
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        {
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