List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=exclusivity&page=5
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "name": "Uh uh uh boom goes the boomer",
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            "description": "9 -> 鄧宏諾\n10 -> 覃晉謙",
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        {
            "id": 103971,
            "name": "第6期かおり杯棋聖戦Sリーグ",
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                "username": "site15",
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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\nkazurotteさん、Novakunさん、dk0710さん、micky0427さん、Jango0123さん",
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                "name": "かおり杯-World Kaori Cup-",
                "summary": "For every player who enjoy go game",
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                "username": "ycchan",
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            "description": "Team D Again",
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            "rules": "chinese",
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            "time_start": "2026-04-10T14:19:00Z",
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        {
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