Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=2009
{ "count": 59259, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=2010", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=2008", "results": [ { "id": 112171, "name": "19✖️19 Go Cup Tournament", "director": { "id": 1497408, "username": "Ming Ming", "country": "hk", "icon": "https://user-uploads.online-go.com/0426093c662dcbaa2ed6ee379367fc28-64.png", "ratings": { "version": 5, "overall": { "rating": 808.4796202275077, "deviation": 101.59414880347964, "volatility": 0.06002207719886031 } }, "ranking": 9.995179393337779, "professional": false, "ui_class": "" }, "description": "For people who like 19✖️19\n\nhttps://online-go.com/tournament/112818 (2)", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 600, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "live", "pause_on_weekends": false, "per_move": 600 }, "is_open": true, "exclude_provisional": false, "group": { "id": 13995, "name": "OGS Go Cup Title Tournaments", "summary": "Hi, I am Go Cup Tournaments. The photo is a cup, that mean: Make tournament", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 23, "icon": "https://user-uploads.online-go.com/ededbc5107d7f558aa17587481343a94-64.png" }, "auto_start_on_max": false, "time_start": "2024-03-01T04:00:00Z", "players_start": 3, "first_pairing_method": "strength", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2024-03-01T04:00:30.753443Z", "ended": "2024-03-01T05:17:50.785981Z", "start_waiting": "2024-03-01T04:00:30.516006Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/ededbc5107d7f558aa17587481343a94-15.png", "player_count": 16, "ranked": true }, { "id": 6363, "name": "Analysis Disabled ^_^", "director": { "id": 119297, "username": "copacetic", "country": "um", "icon": "https://user-uploads.online-go.com/4810db6f708092adf6304eb517e4e2b1-64.png", "ratings": { "version": 5, "overall": { "rating": 1535.294321308795, "deviation": 64.01300055190508, "volatility": 0.059746247887098806 } }, "ranking": 24.84178161216943, "professional": false, "ui_class": "" }, "description": "Sink or Swim", "schedule": null, "title": null, "tournament_type": "roundrobin", "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": 28, "name": "Teaching League", "summary": "The teaching league is a group for players who want to improve their game by playing, as well as by teaching weaker players.\n\nQuick rule summary: no handicap, moderate time settings, stronger player creates a review.\n\nPlease add \"TL\" to the game name.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 4477, "icon": "https://user-uploads.online-go.com/b1a8e87e33263bc92ccdc6303c0c184c-64.png" }, "auto_start_on_max": true, "time_start": "2015-04-15T05:20:00Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2015-04-15T05:20:50.212915Z", "ended": "2015-07-08T13:48:50.781457Z", "start_waiting": "2015-04-15T05:20:49.718505Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/b1a8e87e33263bc92ccdc6303c0c184c-15.png", "player_count": 7, "ranked": true }, { "id": 133649, "name": "Correspondence 9x9 RoundRobin 2025-10-23 19:00", "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 Site-wide Tournament", "schedule": { "id": 5, "name": "Correspondence 9x9 RoundRobin", "rrule": "DTSTART:20260405T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-04-05T19:00:18.080101Z", "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": "slaughter", "subsequent_pairing_method": "slaughter", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 10 }, "next_run": "2026-04-08T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 95543, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 259200, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2025-10-23T19:00:14.419914Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2025-10-23T19:00:59.167710Z", "ended": "2025-10-29T23:59:18.438463Z", "start_waiting": "2025-10-23T19:00:58.445447Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 10, "ranked": true }, { "id": 136231, "name": "13x13 Mini League 5k-15k #28", "director": { "id": 1688153, "username": "Mittelmark", "country": "de", "icon": "https://user-uploads.online-go.com/f86d53e1b08ba490783eac759518a835-64.png", "ratings": { "version": 5, "overall": { "rating": 1085.853799560171, "deviation": 67.3768163524415, "volatility": 0.060025167068784406 } }, "ranking": 16.823651478136373, "professional": false, "ui_class": "supporter" }, "description": "A little round robin with 4 games for everyone on a 13x13 board with (not too) relaxed time settings.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 93703, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 432000, "max_time": 1209600 }, "is_open": true, "exclude_provisional": true, "group": { "id": 161, "name": "13x13", "summary": "Like to play on a 13 x 13 board?", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 57, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2026-01-23T16:00:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 15, "max_ranking": 25, "analysis_enabled": false, "exclusivity": "open", "started": "2026-01-20T20:25:40.729620Z", "ended": "2026-02-27T18:39:55.041987Z", "start_waiting": "2026-01-20T20:25:40.517594Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 5, "ranked": true }, { "id": 136888, "name": "9x9 Mini League 1k-9k #165", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1357.9261925911521, "deviation": 69.59599630709448, "volatility": 0.0602068047357829 } }, "ranking": 21.999808315401925, "professional": false, "ui_class": "" }, "description": "Special league for players between 9kyu and 1kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 95543, "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": 3524, "name": "9x9 Lovers", "summary": "A group for Go players who love the 9x9 board.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 696, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png" }, "auto_start_on_max": true, "time_start": "2026-02-08T20:00:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 21, "max_ranking": 29, "analysis_enabled": true, "exclusivity": "open", "started": "2026-02-06T04:52:38.848131Z", "ended": "2026-03-04T03:50:00.759619Z", "start_waiting": "2026-02-06T04:52:38.617410Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png", "player_count": 5, "ranked": true }, { "id": 137279, "name": "13x13 Mini League 2d-9k #13", "director": { "id": 1688153, "username": "Mittelmark", "country": "de", "icon": "https://user-uploads.online-go.com/f86d53e1b08ba490783eac759518a835-64.png", "ratings": { "version": 5, "overall": { "rating": 1085.853799560171, "deviation": 67.3768163524415, "volatility": 0.060025167068784406 } }, "ranking": 16.823651478136373, "professional": false, "ui_class": "supporter" }, "description": "A little round robin with 4 games for everyone on a 13x13 board with (not too) relaxed time settings.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 93703, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 432000, "max_time": 1209600 }, "is_open": true, "exclude_provisional": true, "group": { "id": 161, "name": "13x13", "summary": "Like to play on a 13 x 13 board?", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 57, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2026-03-06T20:00:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 21, "max_ranking": 31, "analysis_enabled": false, "exclusivity": "open", "started": "2026-03-05T19:05:00.625335Z", "ended": null, "start_waiting": "2026-03-05T19:05:00.337309Z", "board_size": 13, "active_round": 1, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 5, "ranked": true }, { "id": 78865, "name": "Correspondence 13x13 RoundRobin 2021-08-17 19:00", "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:20260407T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-04-07T19:00:21.261790Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 13, "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": "slaughter", "subsequent_pairing_method": "slaughter", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 10 }, "next_run": "2026-04-10T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 259200, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2021-08-17T19:00:13.535274Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2021-08-17T19:00:17.644044Z", "ended": "2021-10-09T13:37:10.766599Z", "start_waiting": "2021-08-17T19:00:16.454812Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 10, "ranked": true }, { "id": 61403, "name": "CUARTO SERAPÏO", "director": { "id": 607938, "username": "kido.go.baduk", "country": "mx", "icon": "https://user-uploads.online-go.com/83ceb7eea12991c2d610032107296fa7-64.png", "ratings": { "version": 5, "overall": { "rating": 752.4459521746994, "deviation": 67.76829760245717, "volatility": 0.060586791591643506 } }, "ranking": 8.332400499350085, "professional": false, "ui_class": "" }, "description": "Vamoa jugar", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 36, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 600, "period_time": 30, "periods": 5 }, "is_open": true, "exclude_provisional": false, "group": { "id": 5581, "name": "Colegio Serapio Rendón // Kinder - Primaria", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 200, "icon": "https://user-uploads.online-go.com/9da407b0f50ca68064ffbdfe7ee05885-64.png" }, "auto_start_on_max": false, "time_start": "2020-06-02T14:28:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2020-06-02T14:28:33.193136Z", "ended": "2020-06-02T15:10:23.288267Z", "start_waiting": "2020-06-02T14:28:32.590407Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/9da407b0f50ca68064ffbdfe7ee05885-15.png", "player_count": 11, "ranked": true }, { "id": 59687, "name": "red cbb", "director": { "id": 750972, "username": "Linda27", "country": "un", "icon": "https://secure.gravatar.com/avatar/bbcddd009e7a8cfb1db1320b7a0a0373?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1040.3534211051458, "deviation": 214.76221007384044, "volatility": 0.06000099522321668 } }, "ranking": 15.832690120394535, "professional": false, "ui_class": "provisional" }, "description": "vhhbhbnjihft century", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "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": 4767, "name": "WeiqiMath", "summary": "Math rule is invented to replicate the original go rule. The score is the number of stones surviving on the board.", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 83, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2020-04-26T21:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2020-04-27T14:43:21.413032Z", "ended": "2020-06-26T04:13:18.281164Z", "start_waiting": "2020-04-27T14:43:20.933058Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 61741, "name": "Турнир для начинающих.", "director": { "id": 776814, "username": "Korotrov 19", "country": "ua", "icon": "https://user-uploads.online-go.com/1c0b386e473e055af29bcaff72788ef6-64.png", "ratings": { "version": 5, "overall": { "rating": 1627.5011666778498, "deviation": 60.69603575167428, "volatility": 0.06006221360900416 } }, "ranking": 26.191975476154177, "professional": false, "ui_class": "" }, "description": "Турнир для того чтобы люди начали понимать игру GO.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 86400, "initial_time": 259200, "max_time": 259200 }, "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": 17879, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": false, "time_start": "2020-06-30T12:00:00Z", "players_start": 7, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 7, "analysis_enabled": true, "exclusivity": "open", "started": "2020-06-30T13:12:19.010360Z", "ended": "2020-07-11T10:09:04.308682Z", "start_waiting": "2020-06-30T13:12:17.959296Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 7, "ranked": true } ] }
