List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-min_ranking&page=801
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-min_ranking&page=800",
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        {
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            "description": "クラス昇降有りリーグ戦(試行)の予選です。\n\n1位→本戦Sリーグ\n\n2位→本戦Aリーグ\n\n3位→本戦B1リーグ\n\n4位→本戦B2リーグ\n\n5位→リーグ1~3の5位の中で勝ち数1位→本戦B1リーグ\n\n   リーグ1~3の5位の中で勝ち数2位→本戦C1リーグ\n\n   リーグ1~3の5位の中で勝ち数3位→本戦C2リーグ\n\n   ※リーグ1~3の5位の勝ち数が同数の場合は抽選\n\n6位→本戦C2リーグ\n\n7位→本戦C1リーグ",
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