List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-time_per_move&page=1909
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
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Vary: Accept

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        {
            "id": 101659,
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            "director": {
                "id": 1303195,
                "username": "eaglejoy",
                "country": "001",
                "icon": "https://user-uploads.online-go.com/d4b7c1948ffe6ed5f80f075d40a13547-64.png",
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                "professional": false,
                "ui_class": ""
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