List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-exclusivity&page=5991
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "next": null,
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            "description": "%%%%%%%%%%%%%%%%%%%%%%%%\n\n!!!LIVE GAME APPOINTMENTS ARE NOT SCHEDULED AUTOMATICALLY!!!\n\nONCE TOURNAMENT STARTS:\n\nCOME BACK HERE TO FIND YOUR ASSIGNED OPPONENT ARRANGE A >30min VIDEO CONFERENCE WITH YOUR OPPONENT FINISH YOUR GAME WITHIN ONE WEEK, TO PREVENT BLOCKING THE TOURNAMENT. EACH MONDAY, SCHEDULE YOUR NEXT MATCH VIDEO CONFERENCE. %%%%%%%%%%%%%%%%%%%%%%%%",
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            "id": 42036,
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                "username": "RufusGoldstreiff",
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            "description": "Turnuhr",
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                "id": 2321,
                "name": "Schulis Beginner Tournaments",
                "summary": "A group of brothers playing each other, but hosting public tournaments as well. Beginner level!",
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