List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=players_start&page=263
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "黃思齊\n蔡仲文",
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            "id": 120658,
            "name": "第8期かおり杯棋聖戦Aリーグ",
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            "description": "このトーナメントは下記の方が参加予定です。空きがないため参加者となっていない方は参加することができません。\n\nThis tournament have already been “reserved” for members listed below. If you are not one among them, don’t click “Join this tournament!”. (There is no vacancy.)\n\ndk0710さん、peipeipeiさん、yuuna_resukaさん、マカロニさん、nassyさん",
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                "id": 2969,
                "name": "かおり杯-World Kaori Cup-",
                "summary": "For every player who enjoy go game",
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        {
            "id": 85560,
            "name": "9x9 Blitz Tourney",
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                "username": "🐬⚔️🐬 🍩🥂🕯️🌱",
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            "description": "Quick, fun, and challenging.\n\nGood luck!",
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                "name": "Blitz ⚡",
                "summary": "Welcome,\n\nBlitz style tourneys, please join if you like speedy Go!\n\n\n",
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        {
            "id": 101690,
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            "description": "People who love playing Chess (All the people can join!!!)",
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