Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-ended&page=4594
{ "count": 59256, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-ended&page=4595", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-ended&page=4593", "results": [ { "id": 29014, "name": "Blitz 13x13 Swiss Tournament 2017-07-30 23:30", "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": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260407T110000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-04-07T11:00:18.283854Z", "lead_time_seconds": 1800, 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"https://user-uploads.online-go.com/ddd682e526af61940b5bb2c841223bdf-15.png", "player_count": 5, "ranked": true }, { "id": 29011, "name": "Blitz 19x19 Elimination Tournament 2017-07-30 21:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260407T130000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-04-07T13:00:18.288186Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, 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"username": "EdgarAlvarez", "country": "cu", "icon": "https://user-uploads.online-go.com/3ee0e007f9dad6059e9cca0ca59c58bf-64.png", "ratings": { "version": 5, "overall": { "rating": 1396.4043972784643, "deviation": 65.62643219002088, "volatility": 0.05993856393356248 } }, "ranking": 22.64666486708045, "professional": false, "ui_class": "" }, "description": "Para todos los jugadores de habla hispana", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": { "id": 32, "name": "Spain Go", "summary": "Group for spanish people that want to play Go", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 417, "icon": "https://user-uploads.online-go.com/55563a0bc6005cdf4cde0c413d2c6738-64.png" }, "auto_start_on_max": true, "time_start": "2017-02-15T20:18:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "group", "started": "2017-02-21T12:28:42.496576Z", "ended": "2017-07-30T20:06:45.776629Z", "start_waiting": "2017-02-21T12:28:41.550511Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/55563a0bc6005cdf4cde0c413d2c6738-15.png", "player_count": 4, "ranked": true }, { "id": 29002, "name": "Live 9x9 Double Elimination Tournament 2017-07-30 14:30", "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 } }, 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"tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 33, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2017-07-30T14:30:23.685387Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2017-07-30T14:30:27.235783Z", "ended": "2017-07-30T14:58:41.532484Z", "start_waiting": "2017-07-30T14:30:26.396779Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 5, "ranked": true }, { "id": 29001, "name": "Blitz 19x19 Elimination Tournament 2017-07-30 13:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": 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