List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=players_start&page=581
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "Hello, everyone, this is the communication competition within our group! We will send the first and second place in the final result to participate in the final of the headquarters!",
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