List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-analysis_enabled&page=197
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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                "summary": "For alle GO beginners of the world. We play tournaments with rating limit.",
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        {
            "id": 98236,
            "name": "9x9 Round Robin.",
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                "id": 126739,
                "username": "🐬Sofiam🐬",
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