List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-exclude_provisional&page=5584
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "For those who enjoy playing Go on a friday night!\n\n**Since the total number of participants in the tournament is not (8/16/32), the previous format(double elimination) will cause some problems. So, it is more practical to switch to single elimination.\n\nEverybody will still be playing 2 games. For those who have lost the first round, you can find another opponent using the chat in the tournament channel.",
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                "name": "NTU Weiqi",
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            "description": "I'll help milan out :) Enjoy",
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