List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1222
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "description": "sorry, the last one had an error\nplease join this one\nand remember to be on this page when tournament starts",
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