List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=4991
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "name": "💖🩷💜🏳️‍🌈 LGBT+ Pride Spread Love & peace Tournament🏳️‍🌈💜🩷💖",
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                "name": "because why not",
                "summary": "a group were you all can be yourself with no judgment.",
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