List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=player_count&page=5008
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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        {
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                "username": "Kosh-retired",
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            "description": "### ! Does NOT pause on the weekend !\n\n<body>\n  <h2 style=\"color:red\">This tournament is for players that don't use vacation.</h2>\n</body>\n\n---\n\n- Just one round of simultaneous games. Chinese Rules/Scoring.\n\n- This is a '**FAST** Correspondence Tournament'. Please avoid delaying your games using the Vacation feature or Pause. Any participant using Vacation or Pause may be disqualified (and forfeit unfinished games) at the discretion of the Tournament Director.\n\n- Please make sure you understand the [**'Clock' settings**](https://github.com/online-go/online-go.com/wiki/Finding-(starting)-a-game#basic-time-controls-explained) before you join this tournament.  It typically takes 2-3 weeks to complete and you will need to log on and play at two well-spaced times most days to avoid losing by timeout.\n\n- If this suits you then, Bonne Partie....and please invite your friends. :)\n\n<body>\n  <h4 style=\"color:salmon\">Nb. This will be the last tournament in this series. I am pleased to say that a number of people have picked up the baton on creating FastC tournaments. Thankyou to all opponents past and present.</h4>\n</body>",
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