List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=127
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "name": "💫 For the beginners 2026 - 004 🐒",
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                "username": "Robert.Jasiek.Rules.Master",
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            "description": "this is just a tournament i made for fun.\nAre you a dog or cat person?",
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