Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=time_per_move&page=3103
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"2016-03-10T16:30:46.534310Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 6, "ranked": true }, { "id": 3317, "name": "Sitewide November 2014 DDKs Live 19x19 - 9. 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