List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-players_start&page=5531
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "2nd Kwago League live tournament is held on Sundays starting February 21 to April 11, 2021.",
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            "name": "Tournament 11: 9x9 handicap",
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                "username": "林峻希",
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                "name": "friend group",
                "summary": "ONLY FOR MY FRIENDS! SO FRIEND ME NOW!",
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            "name": "The 21st Murase Go Group Tournament",
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            "description": "毎月27日に開催される定例トーナメントです。これは第二十一回村瀬碁グループ定例トーナメントです。2020年5月27日に開始されます。\n\nA tournament that happens every month on the 27th. This is the 21st tournament that starts on May 27th, 2020.",
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