List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=min_ranking&page=5741
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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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": "that's all",
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            "description": "no problem thx for game!",
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            "name": "ahl7's mini-tournament pain beurre",
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                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
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