Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=-ended&page=4337
{ "count": 59227, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-ended&page=4338", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-ended&page=4336", "results": [ { "id": 36781, "name": "Correspondence 13x13 RoundRobin 2018-04-29 01:00", "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": 7, "name": "Correspondence 13x13 RoundRobin", "rrule": "DTSTART:20260401T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-04-01T19:00:13.781457Z", "lead_time_seconds": 86400, 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"main_time": 300, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2018-05-23T22:30:45.538832Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2018-05-23T22:30:48.226537Z", "ended": "2018-05-23T23:22:45.302005Z", "start_waiting": "2018-05-23T22:30:47.585609Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 9, "ranked": true }, { "id": 37542, "name": "Blitz 19x19 Elimination Tournament 2018-05-23 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 } }, 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Beginner level!", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 14, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2018-05-23T19:14:00Z", "players_start": 3, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2018-05-23T19:14:35.588887Z", "ended": "2018-05-23T20:55:16.101298Z", "start_waiting": "2018-05-23T19:14:35.388347Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 3, "ranked": true }, { "id": 37538, "name": "Blitz 13x13 Swiss Tournament 2018-05-23 19:30", "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:20260403T230000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-04-03T23:00:16.483254Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 40 }, "next_run": "2026-04-04T03:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2018-05-23T19:30:34.537456Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2018-05-23T19:30:37.085445Z", "ended": "2018-05-23T20:12:27.940610Z", "start_waiting": "2018-05-23T19:30:36.284129Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 7, "ranked": true }, { "id": 36366, "name": "Single elemination tournament 9 by 9", "director": { "id": 517352, "username": "firedragon228", "country": "un", "icon": "https://secure.gravatar.com/avatar/dffbe0c3a79ea5ac955d9d6714cfef82?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1184.5605838949232, "deviation": 64.14509079683775, "volatility": 0.059997064838914115 } }, "ranking": 18.837824195431253, "professional": false, "ui_class": "" }, "description": "You will have 5 days in order to win.Do not start when full. Takes place on April twenty first. Have fun!", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 17280, "time_control_parameters": { "system": "fischer", "pause_on_weekends": false, "time_control": "fischer", "initial_time": 259200, "max_time": 432000, "time_increment": 14400, "speed": "correspondence" }, "is_open": true, "exclude_provisional": true, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 17873, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": false, "time_start": "2018-04-21T23:00:00Z", "players_start": 6, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 20, "analysis_enabled": true, "exclusivity": "open", "started": "2018-04-21T23:00:20.580406Z", "ended": "2018-05-23T18:55:53.039892Z", "start_waiting": "2018-04-21T23:00:19.490510Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 17, "ranked": true }, { "id": 37450, "name": "TOURNAMENT N°6 !", "director": { "id": 534599, "username": "Iave0Name", "country": "_GoT_Stark", "icon": "https://secure.gravatar.com/avatar/91cb163f0e5c546fa01ace3fdbcb226a?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1209.3091762574272, "deviation": 264.382219308946, "volatility": 0.060000861574359916 } }, "ranking": 19.316505480258684, "professional": false, "ui_class": "provisional" }, "description": "The sixth tournament of the group in real time, join it !", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "system": "fischer", "pause_on_weekends": false, "time_control": "fischer", "initial_time": 90, "max_time": 180, "time_increment": 10, "speed": "live" }, "is_open": true, "exclude_provisional": false, "group": { "id": 2471, "name": "[NEW ADMINISTRATORS]", "summary": "[25-15k] This group is reserved for European beginners.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 81, "icon": "https://user-uploads.online-go.com/1d47f636cfa91703d5cba928c061e197-64.png" }, "auto_start_on_max": false, "time_start": "2018-05-23T16:30:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 15, "analysis_enabled": false, "exclusivity": "open", "started": "2018-05-23T16:30:26.277583Z", "ended": "2018-05-23T16:40:28.007086Z", "start_waiting": "2018-05-23T16:30:25.423236Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/1d47f636cfa91703d5cba928c061e197-15.png", "player_count": 4, "ranked": true }, { "id": 30137, "name": "Join 4 noods", "director": { "id": 469806, "username": "Bobbybooboobear", "country": "un", "icon": "https://secure.gravatar.com/avatar/56e8d2fcd7362c24d02dd12522c35c16?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1213.885727626162, "deviation": 216.10232299914514, "volatility": 0.05999871037387648 } }, "ranking": 19.40394977950754, "professional": false, "ui_class": "provisional" }, "description": "Idk how to play this game", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "aga", "time_per_move": 89280, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400, "speed": "correspondence" }, "is_open": true, "exclude_provisional": true, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. 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