Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1979
{ "count": 60920, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1980", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=1978", "results": [ { "id": 142005, "name": "L&D Mid DDK Tournament #2", "director": { "id": 1872520, "username": "Azariah777", "country": "gb", "icon": "https://user-uploads.online-go.com/75cb2e65dc8717e56dc8f9fdb628c22c-64.png", "ratings": { "version": 5, "overall": { "rating": 1008.9430125424078, "deviation": 63.775524952660746, "volatility": 0.059968935725286436 } }, "ranking": 15.122975413052208, "professional": false, "ui_class": "" }, "description": "A tournament so that mid DDK players can play against similar strength opponents.", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 13644, "time_control_parameters": { "system": "canadian", "time_control": "canadian", "speed": "correspondence", "pause_on_weekends": true, "main_time": 86400, "period_time": 259200, "stones_per_period": 20 }, "is_open": true, "exclude_provisional": true, "group": { "id": 16130, "name": "Life and Death", "summary": "A place for competition and learning….\nWe would all like to be a Dan player someday ", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 3, "icon": "https://user-uploads.online-go.com/9df35b5ae6dcbdcf38a33c5663414c33-64.png" }, "auto_start_on_max": false, "time_start": "2026-07-12T23:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 13, "max_ranking": 17, "analysis_enabled": true, "exclusivity": "open", "started": "2026-07-12T23:00:19.514617Z", "ended": null, "start_waiting": "2026-07-12T23:00:19.408693Z", "board_size": 19, "active_round": 2, "icon": "https://user-uploads.online-go.com/9df35b5ae6dcbdcf38a33c5663414c33-15.png", "player_count": 4, "ranked": true }, { "id": 55662, "name": "2nd Tournament", "director": { "id": 278620, "username": "rodrigo_o", "country": "br", "icon": "https://user-uploads.online-go.com/5f04c97f6a4663c43d09dff0096bf3ac-64.png", "ratings": { "version": 5, "overall": { "rating": 915.824803911921, "deviation": 68.60262348810217, "volatility": 0.0602190954258877 } }, "ranking": 12.881280922000522, "professional": false, "ui_class": "" }, "description": "2nd Tournament from Tournament Kingdom", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 89280, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 259200, "max_time": 432000 }, "is_open": true, "exclude_provisional": true, "group": { "id": 3824, "name": "Tournament Kingdom", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 1, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2020-01-20T15:00:00Z", "players_start": 4, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2020-01-20T15:00:16.119033Z", "ended": "2020-04-20T05:04:15.672826Z", "start_waiting": "2020-01-20T15:00:15.283751Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 6, "ranked": true }, { "id": 84760, "name": "safasfsd", "director": { "id": 1074420, "username": "BCCG5teety", "country": "un", "icon": "https://user-uploads.online-go.com/130d05ca2c23dc84af5de4ce66e6f5d0-64.png", "ratings": { "version": 5, "overall": { "rating": 1443.0625474533256, "deviation": 132.37623732202258, "volatility": 0.06000634207606281 } }, "ranking": 23.407535431542016, "professional": false, "ui_class": "" }, "description": "asdsadasds", "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": 9381, "name": "BCCMIP4-2021", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 157, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2022-01-12T05:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2022-09-28T01:37:17.648532Z", "ended": "2022-11-26T14:14:36.165481Z", "start_waiting": "2022-09-28T01:37:17.534944Z", "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": 35387, "name": "Yasuda's Title Tournament", "director": { "id": 509226, "username": "Ryuma", "country": "us", "icon": "https://secure.gravatar.com/avatar/5fb236ab2064e1f30981ef7416f81d7f?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1889.3374602338436, "deviation": 66.05590735530238, "volatility": 0.06015461015671025 } }, "ranking": 29.6455018639557, "professional": false, "ui_class": "" }, "description": "This is a tournament for winning the Yasuda's title on OGS", "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": 2219, "name": "OGS Tournaments", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 38, "icon": "https://user-uploads.online-go.com/0038e640d3983149f0fbe1c2b9aba0d0-64.png" }, "auto_start_on_max": false, "time_start": "2018-04-01T04:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2018-04-01T04:00:21.769591Z", "ended": "2019-08-10T17:07:00.330938Z", "start_waiting": "2018-04-01T04:00:18.571367Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/0038e640d3983149f0fbe1c2b9aba0d0-15.png", "player_count": 69, "ranked": true }, { "id": 44319, "name": "March ,Michigan G.P.", "director": { "id": 467165, "username": "MummRa", "country": "us", "icon": "https://user-uploads.online-go.com/68359dab5164ddcdffa8ad4ca0699079-64.png", "ratings": { "version": 5, "overall": { "rating": 1260.4514790067904, "deviation": 65.48820329250682, "volatility": 0.060021236131789904 } }, "ranking": 20.27539481493184, "professional": false, "ui_class": "" }, "description": "Absolute play clock\n\nWinners of monthly tournaments will be invited to yearly championship game", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 26880, "time_control_parameters": { "total_time": 2419200, "time_control": "absolute", "speed": "correspondence", "system": "absolute", "pause_on_weekends": false }, "is_open": true, "exclude_provisional": true, "group": { "id": 306, "name": "Michigan Go Players", "summary": "For Players from all over Michigan", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 89, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2019-03-14T12:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2019-03-14T12:01:03.287810Z", "ended": "2019-08-03T23:21:13.029672Z", "start_waiting": "2019-03-14T12:00:59.367647Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 7, "ranked": true }, { "id": 141208, "name": "第10回 囲碁を楽しもう大会", "director": { "id": 1997867, "username": "LINNKU", "country": "jp", "icon": "https://user-uploads.online-go.com/149cc31ab23ee78d65e1987b29f39c5e-64.png", "ratings": { "version": 5, "overall": { "rating": 981.2213098672103, "deviation": 62.642307983186235, "volatility": 0.059973177427690406 } }, "ranking": 14.478004622848978, "professional": false, "ui_class": "" }, "description": "㊗10回まで来ました。皆さんありがとうございます。\nでは、囲碁を楽しみながら勝ち抜いていきましょう。", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 12, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "live", "pause_on_weekends": false, "time_increment": 10, "initial_time": 300, "max_time": 3600 }, "is_open": true, "exclude_provisional": false, "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": "2026-06-20T05:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2026-06-20T05:00:19.677282Z", "ended": "2026-06-20T05:10:44.304450Z", "start_waiting": "2026-06-20T05:00:19.609846Z", "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": 94961, "name": "1 -> 鄭棨康 2 -> 陳灝", "director": { "id": 818416, "username": "傳碁學園", "country": "un", "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png", "ratings": { "version": 5, "overall": { "rating": 1898.3468207617877, "deviation": 71.28817954667363, "volatility": 0.06041644550084839 } }, "ranking": 29.755630942351214, "professional": false, "ui_class": "" }, "description": "1 -> 鄭棨康\n2 -> 陳灝", "schedule": null, "title": null, "tournament_type": "swiss", "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": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 7531, "name": "傳碁 C班", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 87, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2022-09-25T04:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2022-09-25T03:41:55.576630Z", "ended": "2022-09-25T04:27:34.222736Z", "start_waiting": "2022-09-25T03:41:55.515994Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 2, "ranked": true }, { "id": 94127, "name": "9x9 Mini League 1k-9k #40", "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 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": 89280, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": false, "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": "2022-09-11T20:00:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 21, "max_ranking": 29, "analysis_enabled": true, "exclusivity": "open", "started": "2022-09-08T09:12:11.938387Z", "ended": "2022-09-26T21:48:10.837175Z", "start_waiting": "2022-09-08T09:12:11.761715Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png", "player_count": 5, "ranked": true }, { "id": 35601, "name": "aprilov 19x 19 turnir", "director": { "id": 487565, "username": "deleted-a3167815-ab3e-4771-846b-f3f4d5fbb9c0", "country": "si", "icon": "https://secure.gravatar.com/avatar/a2678bc833498e5c59a08dab7289a5e6?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1251.7936367345692, "deviation": 64.91511185355884, "volatility": 0.05995557622079861 } }, "ranking": 20.115832484943084, "professional": false, "ui_class": "" }, "description": "aprilll", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 175680, "time_control_parameters": { "system": "fischer", "pause_on_weekends": true, "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 172800, "speed": "correspondence" }, "is_open": true, "exclude_provisional": false, "group": { "id": 2265, "name": "FRI GO (Slovenia)", "summary": "Group of GO enthusiasts at the Slovene faculty of computer science", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 11, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2018-04-21T16:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2018-04-21T16:00:49.551982Z", "ended": "2018-11-08T08:13:34.325119Z", "start_waiting": "2018-04-21T16:00:49.331604Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 3, "ranked": true }, { "id": 35907, "name": "Correspondence 9x9 RoundRobin 2018-03-31 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": "2018-03-31T01:00:03.239231Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2018-03-31T01:00:37.554928Z", "ended": "2018-04-19T15:48:50.420708Z", "start_waiting": "2018-03-31T01:00:33.798660Z", "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 } ] }
