List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-first_pairing_method&page=560
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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                "name": "New Zealand Tournaments",
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            "description": "!! players on vacation will be disqualified !!",
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