List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=5771
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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        {
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            "name": "ซ้อม44444",
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                "username": "Sarawoot Kanya",
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            "description": "เทสสักแเายส่กหหด้า",
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            "description": "All players welcome. Starts when full.\n\nNew Zealand rules. 9x9 handicap. Round robin.\n\nFor more tournaments with New Zealand rules: https://online-go.com/group/14024",
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