List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=handicap&page=283
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "Go! Go! Go!",
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            "description": "just to test everyone's skills in this group",
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            "description": "誰でもいいですよ\n19✕19",
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