Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=first_pairing_method&page=1200
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"periods": 5 }, "is_open": true, "exclude_provisional": true, "group": { "id": 242, "name": "la cité du joueur perdu", "summary": "A place to learn, test, experiment, invent. 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