List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=268
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "summary": "Welcome to Final Frontier.\n\nWe have tons of tournaments and a magnificent director-Picard.\nPlease join this frontier soon, we are closing!",
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                "summary": "A group for Go players who love the 9x9 board.",
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            "description": "If you want to be stronger, then you should often play with those who are a little stronger than you. Training Grounds tournaments provide you with this opportunity.",
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                "name": "Game Of Stones",
                "summary": "This group is no longer operated.",
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