List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=time_per_move&page=4551
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "Winner take all!",
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            "description": "For all soccer/football and Go fans:\nThis is a tournament with 4 simultaneous round-robin groups, 4 players each. Please sign up for ONLY 1 group.\nAfter the group phase is finished, there will be an invite-only single elimination tournament for the top 2 finishers in each group.\nstarts when full",
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            "description": "hmm, new types?",
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