List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-auto_start_on_max&page=729
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "A new tournament for the new year!",
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                "name": "Global Go Club",
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            "title": null,
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            "subsequent_pairing_method": "slaughter",
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        {
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                "username": "Sch-Mentor",
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