Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-id&page=4878
{ "count": 59249, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-id&page=4879", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-id&page=4877", "results": [ { "id": 19947, "name": "SUSTC统计机器学习预赛", "director": { "id": 354308, "username": "ssdxshcx", "country": "un", "icon": "https://secure.gravatar.com/avatar/9f712ee2a5c6c74ed62eb9e02a2fe538?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1958.7962743888888, "deviation": 162.39361139211942, "volatility": 0.05999243871894887 } }, "ranking": 30.481307643997052, "professional": false, "ui_class": "provisional" }, "description": "SUSTC统计机器学习预赛", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 0, "time_control_parameters": { "time_control": "none" }, "is_open": true, "exclude_provisional": false, "group": { "id": 1247, "name": "SUSTC-统计机器学习-预赛", "summary": "SUSTC", "require_invitation": false, "is_public": 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