List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=players_start&page=131
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=130",
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            "name": "19 times 19 Live Tournament",
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                "name": "Chinese Group 中華群 - 奕棋會友 -",
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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\ntaka2さん、kabakenさん、rinsiさん、rs3001さん、tomtom-chanさん、ruy661さん",
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            "description": "Beginner tournament",
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            "name": "Nom de Plume's Tournament",
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                "username": "nazgand",
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            "description": "A tournament in honor of Nom de Plume(the tournament was her idea).",
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            "group": {
                "id": 1371,
                "name": "Novel Updates",
                "summary": "Group for those who like reading translated asian novels on the Novel Updates site",
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                "is_public": true,
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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\nIt will be a round-robin tournament with automatic handicapping based on ratings.",
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                "id": 7692,
                "name": "Yushima Go Cafe (湯島囲碁喫茶)",
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                "name": "Schulis Beginner Tournaments",
                "summary": "A group of brothers playing each other, but hosting public tournaments as well. Beginner level!",
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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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        {
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