List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5373
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "name": "Macedonian Open Tournament 19x19 Correspondence",
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            "description": "Please note the extremely aggresive time requiremets. You must achieve 6 moves per day.",
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                "name": "OGS Mini Tournaments",
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        {
            "id": 84370,
            "name": "9x9 Mini League 1k-9k #5",
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                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
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