Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-board_size&page=4548
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"open", "started": "2018-01-14T14:30:17.419146Z", "ended": "2018-01-14T15:09:00.131516Z", "start_waiting": "2018-01-14T14:30:15.556438Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 7, "ranked": true }, { "id": 96003, "name": "9x9 Open D.E. 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