List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=is_open&page=3288
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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                },
                "next_run": "2026-03-04T22:00:00Z",
                "base_points": "10.0"
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            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 33,
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        {
            "id": 58004,
            "name": "The 20th Murase Go Group Tournament",
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                "username": "SM-SYaKo",
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            "exclude_provisional": false,
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}