Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1972
{ "count": 60918, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1973", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1971", "results": [ { "id": 42373, "name": "Halloween Tournament", "director": { "id": 503127, "username": "zombiewarrior88", "country": "un", "icon": "https://secure.gravatar.com/avatar/fb4e72418e490f4e6579d86b747db6f1?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1214.311434818523, "deviation": 86.67575938156371, "volatility": 0.06001172103733663 } }, "ranking": 19.412067012948505, "professional": false, "ui_class": "" }, "description": "Since my original halloween had mysteriously deleted, I have created another halloween tournament. Enjoy", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "aga", "time_per_move": 10, "time_control_parameters": { "time_control": "simple", "speed": "live", "system": "simple", "pause_on_weekends": false, "per_move": 10 }, "is_open": true, "exclude_provisional": true, "group": { "id": 515, "name": "OGS Title Tournaments", "summary": "Would you like to compete with hundreds of players in epic tournaments and become the Honinbo, Meijin, Kisei, Tianyuan, Mingren or Kuksu? Join us!", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 3017, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2018-10-31T23:30:00Z", "players_start": 1, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2018-10-31T23:30:54.363041Z", "ended": "2018-10-31T23:32:17.185257Z", "start_waiting": "2018-10-31T23:30:54.039621Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 2, "ranked": true }, { "id": 37540, "name": "Российский турнир", "director": { "id": 426919, "username": "Сергей 71", "country": "ru", "icon": "https://user-uploads.online-go.com/f8636f9cecf79d4fbebddba346b2f0fd-64.png", "ratings": { "version": 5, "overall": { "rating": 1811.4644937992523, "deviation": 61.98879503967162, "volatility": 0.05991996180965089 } }, "ranking": 28.671104780582176, "professional": false, "ui_class": "" }, "description": "Приглашаем всех российских игроков", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "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": 515, "name": "OGS Title Tournaments", "summary": "Would you like to compete with hundreds of players in epic tournaments and become the Honinbo, Meijin, Kisei, Tianyuan, Mingren or Kuksu? Join us!", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 3017, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2018-05-27T20:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 20, "max_ranking": 30, "analysis_enabled": true, "exclusivity": "open", "started": "2018-05-29T14:38:24.452076Z", "ended": "2018-09-17T16:13:47.556933Z", "start_waiting": "2018-05-29T14:38:24.036205Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 4, "ranked": true }, { "id": 35665, "name": "EVENEMENT SUISSE DE GO (ROMANDIE)", "director": { "id": 489580, "username": "FahrnyKo", "country": "ch", "icon": "https://secure.gravatar.com/avatar/555328f540dd6f14a0510c288f408613?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 818.7271110043565, "deviation": 64.28618914148545, "volatility": 0.06003924182663003 } }, "ranking": 10.28676194785377, "professional": false, "ui_class": "" }, "description": "premier organisation de GO par Fahrny :-)\nhttps://www.facebook.com/events/145077896169162/", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": -1, "rules": "japanese", "time_per_move": 33, "time_control_parameters": { "period_time": 30, "main_time": 300, "system": "byoyomi", "pause_on_weekends": false, "time_control": "byoyomi", "periods": 5, "speed": "live" }, "is_open": true, "exclude_provisional": true, "group": { "id": 2270, "name": "Ishigo", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 36, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2018-03-22T17:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2018-03-30T15:36:04.665515Z", "ended": "2018-03-30T15:58:55.416148Z", "start_waiting": "2018-03-30T15:36:03.350900Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 4, "ranked": true }, { "id": 38300, "name": "1st Continental Go World Cup-Qualification Phase for North America: Category 19-15k", "director": { "id": 472707, "username": "Rorimuha", "country": "de", "icon": "https://secure.gravatar.com/avatar/8db3342c496531b5e52bf3d1829e9bed?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1516.498123369883, "deviation": 65.47420203284265, "volatility": 0.0595946253187008 } }, "ranking": 24.55661314647885, "professional": false, "ui_class": "" }, "description": "Hello <br>\nThis is the qualification phase for the North America players who has a level between 19k and 15k.<br>\n(This is the group n°1. The winner of this group will play a final qualification phase against the winners of the other groups of the same category.)\n<br>\n<span style=\"color:red;\">REMEMBER THAT YOUR FLAG MUST MATCH WITH THE CONTINENT (for example, the canadian flag is considered as North American flag).</p>\nHave fun :)", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 59520, "time_control_parameters": { "system": "fischer", "pause_on_weekends": true, "time_control": "fischer", "initial_time": 172800, "max_time": 259200, "time_increment": 57600, "speed": "correspondence" }, "is_open": true, "exclude_provisional": true, "group": { "id": 2514, "name": "Continental and World Go Cups Group", "summary": "You want to become World Champion or a Continental champion? Join us :)", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 526, "icon": "https://user-uploads.online-go.com/c1c2b263d212f80b7dfe72721f68c8e4-64.png" }, "auto_start_on_max": true, "time_start": "2018-07-12T10:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2018-07-17T20:07:50.017255Z", "ended": "2018-10-01T22:35:50.050237Z", "start_waiting": "2018-07-17T20:07:46.749857Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/c1c2b263d212f80b7dfe72721f68c8e4-15.png", "player_count": 9, "ranked": true }, { "id": 95459, "name": "Correspondence 9x9 RoundRobin 2022-10-09 19:00", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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:20260902T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-09-02T19:00:32.461350Z", "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": "2026-09-05T19:00:00Z", "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": "2022-10-09T19:00:06.381097Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2022-10-09T19:00:08.288464Z", "ended": "2022-11-17T12:36:04.847216Z", "start_waiting": "2022-10-09T19:00:07.852644Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 8, "ranked": true }, { "id": 138243, "name": "อุอุอิอิ", "director": { "id": 1982001, "username": "piano9089", "country": "un", "icon": "https://secure.gravatar.com/avatar/f4a934d75897fb209dc7cf8414ddbfd9?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 699.7938793148185, "deviation": 245.3091663808632, "volatility": 0.059999758838079544 } }, "ranking": 6.653022267927443, "professional": false, "ui_class": "provisional" }, "description": "อิอิดเกดเกดเกด้ิดิกด้ิกดเ", "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", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 16278, "name": "สมาคมบำบัดโรคเผือก", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 7, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2026-03-13T10:34:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2026-03-13T10:35:02.772656Z", "ended": "2026-05-25T22:40:26.922945Z", "start_waiting": "2026-03-13T10:35:02.639961Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 5, "ranked": true }, { "id": 36632, "name": "Correspondence 9x9 RoundRobin 2018-04-24 01:00", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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:20260902T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:56:18.340749Z", "last_run": "2026-09-02T19:00:32.461350Z", "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": "2026-09-05T19:00:00Z", "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": "2018-04-24T01:00:25.503124Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2018-04-24T01:00:54.116667Z", "ended": "2018-05-05T08:27:55.724457Z", "start_waiting": "2018-04-24T01:00:53.017949Z", "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": 84709, "name": "9x9 Mini League 10k-25k #12", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1394.9321610910313, "deviation": 73.68145747872178, "volatility": 0.060298651427534045 } }, "ranking": 22.62224483016498, "professional": false, "ui_class": "" }, "description": "Special league for players between 25kyu and 10kyu. 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": 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": 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": 716, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png" }, "auto_start_on_max": true, "time_start": "2022-01-16T21:05:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 20, "analysis_enabled": true, "exclusivity": "open", "started": "2022-01-15T17:12:58.681750Z", "ended": "2022-01-24T12:40:58.264472Z", "start_waiting": "2022-01-15T17:12:58.466239Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png", "player_count": 5, "ranked": true }, { "id": 141672, "name": "yugy 19x19 pijfo fjid", "director": { "id": 1821698, "username": "s578gz589", "country": "un", "icon": "https://secure.gravatar.com/avatar/b661377ce4167f78278c7a199986ca37?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1155.8865071784587, "deviation": 66.80145053447188, "volatility": 0.06007405868533413 } }, "ranking": 18.27054959740998, "professional": false, "ui_class": "" }, "description": "19x19", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 609587, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "time_increment": 604800, "initial_time": 604800, "max_time": 2419200 }, "is_open": true, "exclude_provisional": true, "group": { "id": 16264, "name": "9x9 13x13 19x19 123 ! !", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 16, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2026-07-05T04:00:00Z", "players_start": 3, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2026-07-05T04:00:18.218637Z", "ended": null, "start_waiting": "2026-07-05T04:00:18.149268Z", "board_size": 19, "active_round": 1, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 10, "ranked": true }, { "id": 140661, "name": "Correspondence 19x19 RoundRobin 2026-05-28 19:00", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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": 6, "name": "Correspondence 19x19 RoundRobin", "rrule": "DTSTART:20260831T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:58:31.027016Z", "last_run": "2026-08-31T19:00:32.133942Z", "lead_time_seconds": 86400, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 432000, "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": "2026-09-03T19:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 88451, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "pause_on_weekends": true, "max_time": 432000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2026-05-28T19:00:16.869156Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2026-05-28T19:00:17.075479Z", "ended": null, "start_waiting": "2026-05-28T19:00:16.935480Z", "board_size": 19, "active_round": 1, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 6, "ranked": true } ] }
