List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=min_ranking&page=5351
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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        {
            "id": 38592,
            "name": "GO 2018",
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            "description": "Zahrajte si pro radost...",
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            "name": "22/1 周逸\t李沛蓮",
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            "description": "First tournament. Good luck!",
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                "summary": "Active group. Here to have fun and improve our game of Go!",
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            "description": "sorry i wasn't online because of something else",
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