Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=ended&page=4752
{ "count": 59320, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=ended&page=4753", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=ended&page=4751", "results": [ { "id": 110741, "name": "Live 9x9 Double Elimination Tournament 2023-12-17 22:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1125.8827017028436, "deviation": 78.19731452501959, "volatility": 0.06006087171771568 } }, "ranking": 17.66169912212786, "professional": false, "ui_class": "supporter moderator admin" }, "description": "Automatic Sitewide Tournament", "schedule": { "id": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260412T020000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-04-12T02:00:35.089114Z", "lead_time_seconds": 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"https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png", "player_count": 9, "ranked": true }, { "id": 105806, "name": "restart!", "director": { "id": 825888, "username": "govienna", "country": "at", "icon": "https://user-uploads.online-go.com/b6cdb93a887689648e90bcbf2a4f3d61-64.png", "ratings": { "version": 5, "overall": { "rating": 1175.8413205726342, "deviation": 63.77584677942615, "volatility": 0.05997966877570205 } }, "ranking": 18.66679242016304, "professional": false, "ui_class": "" }, "description": "lets play again!", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 88451, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": true, "group": { "id": 7785, "name": "Students of r42", "summary": "Group for players who are or have been playing teaching games with richyfourtytwo.\n\nI will review all ladder or tournament games within this group.\n\nPlaying is the best way to learn in the beginning, so join (at least) the 9x9 ladder and challenge each oth", "require_invitation": true, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 9, "icon": "https://user-uploads.online-go.com/c3f4fc26def52c345456445d58e09485-64.png" }, "auto_start_on_max": false, "time_start": "2023-07-29T06:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2023-07-29T06:00:51.109205Z", "ended": "2023-12-18T03:41:38.888915Z", "start_waiting": "2023-07-29T06:00:50.990983Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/c3f4fc26def52c345456445d58e09485-15.png", "player_count": 5, "ranked": true }, { "id": 109431, "name": 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"2023-12-18T06:48:45.071514Z", "start_waiting": "2023-11-10T19:00:29.979837Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 5, "ranked": true }, { "id": 97516, "name": "December toernooi 2022", "director": { "id": 441026, "username": "deleted-a30fbd6f-680c-4668-8276-f9973e09e130", "country": "nl", "icon": "https://user-uploads.online-go.com/96439d619893935806e23f4ef483d8b5-64.png", "ratings": { "version": 5, "overall": { "rating": 805.0160624397579, "deviation": 71.18074632142026, "volatility": 0.06003052375475145 } }, "ranking": 9.895790858486714, "professional": false, "ui_class": "" }, "description": "December toernooi 2022", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 88451, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 259200, 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"https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1125.8827017028436, "deviation": 78.19731452501959, "volatility": 0.06006087171771568 } }, "ranking": 17.66169912212786, "professional": false, "ui_class": "supporter moderator admin" }, "description": "Automatic Sitewide Tournament", "schedule": { "id": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260411T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-04-11T19:00:35.817277Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 259200, "time_increment": 86400 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclude_provisional": true, "players_start": 4, "first_pairing_method": 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