List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=exclude_provisional&page=610
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "name": "vbhands's 13-I",
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            "name": " Sitewide DDK 9x9 Round Robin February 2014",
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                "id": 4,
                "username": "matburt",
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            "description": "リーグ開始時に参加されているメンバーでの総あたり戦になります。(レーティングによる自動ハンデ付き)\n\n全部のゲームが一斉に始まりますので、自分の手番になっている対局はどんどん着手していきましょう。",
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