List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=exclude_provisional&page=284
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "username": "🐬Sofiam🐬",
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                "summary": "Hello this is Our Go House πŸ”°πŸ”°\nπŸ˜ƒπŸ™ƒπŸ˜ŠπŸ‘‹ YEET",
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            "description": "Hi hi",
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                "id": 1807,
                "name": "Isnirekikari",
                "summary": "Hi, this is a group for players with 25kyu till 1kyu. Especially beginners are welcome! In this group everyone should be able to play, without having to pay attention on the rank difference problem.",
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