List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-exclusivity&page=5655
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=-exclusivity&page=5654",
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            "description": "epic  win game\n\ndo not lose",
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            "description": "メンバーさんからご提案いただいた「13路盤」でのリーグ戦をお試し開催してみます!\n今月はちょいと忙しいんだよな…という方は、よろしければこちらだけご参加いただいてはどうでしょうか?^^\n\nグループメンバーならどなたでもご参加いただけます!",
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            "description": "เต้มต่อ 6.5 คะแนน",
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