List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=min_ranking&page=4182
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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        },
        {
            "id": 133794,
            "name": "Think Different, Find a Game Changer_2nd Qualify Round",
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                "id": 1776211,
                "username": "MAESTRO of BADUK",
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