List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=first_pairing_method&page=5369
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "И вот она долгожданная, тёплая пора-лето.\n\nБуду рад видеть всех, кто прийдёт на мой турнир. \n\n\n:D",
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            "description": "Go is por ludi ĝin !",
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