List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-players_start&page=5456
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-players_start&page=5455",
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        {
            "id": 108095,
            "name": "🐲🐉🐲",
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                "username": "Proudfah _cj",
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            "description": "❤️ I love dragons",
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                "id": 13654,
                "name": "Talons of Peace",
                "summary": "Wings of Fire lovers",
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            "description": "C2リーグ1位→次回Bリーグ昇格\n\n参加者:\n\nonewayさん(予選リーグ2 5位;7人リーグ5位中の勝数2位(同率))、justsunさん(予選リーグ5 5位)、tomi-nchi-goさん(予選リーグ4 6位)、taka2さん(予選リーグ2 6位)、びくまるさん(予選リーグ3 6位)、atari _girlさん(予選リーグ1 7位)",
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                "summary": "For every player who enjoy go game",
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            "description": "Anyone can join, have fun!",
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                "summary": "Welcome,\n\nBlitz style tourneys, please join if you like speedy Go!\n\n\n",
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        {
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