List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-exclude_provisional&page=4568
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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        {
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            "name": " Sitewide DDK 9x9 Round Robin February 2014",
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            "description": "A Round Robin 9x9 tournament for DDKs.  No Handicap... starting sometime in February.",
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