List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=exclude_provisional&page=40
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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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。これは第十九回村瀬碁グループ定例トーナメントです。2020年3月27日に開始されます。\n\nA tournament that happens every month on the 27th. This is the 19th tournament that starts on March 27th, 2020.",
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            "description": "Everyone is welcome. It is capped at 10 players. An identical tournament that starts after two weeks or at 10 players will be created as soon as this tournament starts.\n\nPauses are not allowed.",
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                "name": "Go friends 🐬",
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                "summary": "A group for Go players who love the 9x9 board.",
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            "description": "ორ წაგებაზე გავარდნა",
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                "username": "დათო",
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