List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-start_waiting&page=3679
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "This is a fast tournament for players 20k-25k and provisional. \n\nPlease don't use pause and/ or vacation, this will lead to disqualification from the tournament.",
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        {
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