List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5780
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "The party doesn't stop! This event will start at 20:00 UTC on October 20th, 2013. Each round is estimated to last 10-15 minutes. To confirm the start time in your local time zone, please visit http://tinyurl.com/l39z8qf . ",
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                "username": "wiadp1",
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        {
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            "name": "1st The Battlefield of Double Digit",
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        {
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            },
            "description": "Celebrate the next generation of OGS with a live tournament!",
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        },
        {
            "id": 36896,
            "name": "Are you ready to Go?!",
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            "description": "Bad pun aside, this is my first tournament. Hope you all enjoy!",
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        {
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