Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=452
{ "count": 60874, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=453", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=451", "results": [ { "id": 23923, "name": "Let's Play!", "director": { "id": 241003, "username": "bettaplayer", "country": "un", "icon": "https://secure.gravatar.com/avatar/59e10bc3178461c76a34c56cabb12355?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1394.1376626729852, "deviation": 73.01324024746387, "volatility": 0.06003372631237675 } }, "ranking": 22.60905574560456, "professional": false, "ui_class": "" }, "description": "A little fun tornament for beginners", "schedule": null, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 88320, "time_control_parameters": { "time_control": "fischer", "initial_time": 172800, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": { "id": 43, "name": "Kyu Level Study Group", "summary": "A group for kyu level players! Join, play tournaments, and have fun. Thanks for being a part of our community!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 8965, "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png" }, "auto_start_on_max": false, "time_start": "2017-01-17T01:15:00Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 29, "analysis_enabled": true, "exclusivity": "open", "started": "2017-01-17T11:45:20.017207Z", "ended": "2017-01-30T05:58:01.322353Z", "start_waiting": "2017-01-17T11:45:19.812487Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png", "player_count": 4, "ranked": true }, { "id": 70987, "name": "9x9 Tournament", "director": { "id": 878148, "username": "LightningSword9", "country": "un", "icon": 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}, "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": "2018-10-27T01:00:35.943358Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2018-10-27T01:01:06.445287Z", "ended": "2018-12-02T23:25:34.564935Z", "start_waiting": "2018-10-27T01:01:03.018135Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 7, "ranked": true }, { "id": 72815, "name": "3月20日 馬悅思VS馬彥彬", "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": "3月20日 馬悅思VS馬彥彬", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 20, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 480, "period_time": 15, "periods": 2 }, "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": "2021-03-20T08:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2021-03-20T07:08:17.576020Z", "ended": "2021-03-20T07:43:00.665582Z", "start_waiting": "2021-03-20T07:08:17.450894Z", "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": 122423, "name": "SMS 13x13 First Try", "director": { "id": 1350621, "username": "SMS-Mr.d", "country": "us", "icon": "https://user-uploads.online-go.com/a37a10b28a4630ef53f62c17e567cca7-64.png", "ratings": { "version": 5, "overall": { "rating": 1075.2700317591648, "deviation": 61.726979937746016, "volatility": 0.059987307199874225 } }, "ranking": 16.59690261731099, "professional": false, "ui_class": "" }, "description": "SMS trial", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": -1, "rules": "aga", "time_per_move": 11, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "rapid", "pause_on_weekends": false, "main_time": 30, "period_time": 10, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 14789, "name": "Southampton Middle School Go Club", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": true, "hide_details": true, "member_count": 15, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2024-11-20T20:10:00Z", "players_start": 1, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "group", "started": "2024-11-20T20:10:33.041092Z", "ended": "2024-11-20T20:46:59.292648Z", "start_waiting": "2024-11-20T20:10:32.919735Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 6, "ranked": true }, { "id": 108980, "name": "1 / 1", "director": { "id": 1421513, "username": "nhatcuong1024", "country": "un", "icon": "https://secure.gravatar.com/avatar/9485477df4ef646f74d2b3f4177e5129?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 950.1442684842884, "deviation": 62.458924968349436, "volatility": 0.06000367421762685 } }, "ranking": 13.73294049262349, "professional": false, "ui_class": "" }, "description": "Mùa Đông", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 26, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 300, "period_time": 15, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 13657, "name": "Ichi-Go PTNK Club", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 29, "icon": "https://user-uploads.online-go.com/8ba1369c7e5510cafbb325500b2f55f3-64.png" }, "auto_start_on_max": true, "time_start": "2023-10-28T13:18:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2023-10-28T13:18:37.170267Z", "ended": "2023-10-28T13:32:43.010825Z", "start_waiting": "2023-10-28T13:18:37.085881Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/8ba1369c7e5510cafbb325500b2f55f3-15.png", "player_count": 2, "ranked": true }, { "id": 72223, "name": "Noob swser2", "director": { "id": 844218, "username": "lolroblox", "country": "au", "icon": "https://user-uploads.online-go.com/898603eb835a4063bf795672200accce-64.png", "ratings": { "version": 5, "overall": { "rating": 1319.9778490137012, "deviation": 64.3683573753299, "volatility": 0.05999444409408204 } }, "ranking": 21.343651147118212, "professional": false, "ui_class": "" }, "description": "blah blah", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 87360, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 86400, "max_time": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 6332, "name": "noob_bot", "summary": "Play with bots", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 888, "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-64.png" }, "auto_start_on_max": false, "time_start": "2021-03-19T10:00:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-03-12T23:11:11.990609Z", "ended": "2021-04-21T11:06:30.824184Z", "start_waiting": "2021-03-12T23:11:11.858793Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-15.png", "player_count": 6, "ranked": true }, { "id": 40433, "name": "不如搞個聯賽:0)", "director": { "id": 520158, "username": "Nsonbolyar86", "country": "un", "icon": "https://secure.gravatar.com/avatar/84ede4c4ecca31ebee15734fcb36b4bd?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1687.4869919609714, "deviation": 61.05884960864995, "volatility": 0.059940790552857476 } }, "ranking": 27.029881005877566, "professional": false, "ui_class": "" }, "description": "瑞士制在選擇配位時最基本的一個原則是，挑選成績相同或最相近的選手進行比賽。\n\n第一輪比賽可通過抽籤決定或者根據賽前排名決定。比賽的勝者獲得1分積分，負者不得分，如果打平雙方各得0.5分（或勝兩分、和一分）。不管勝負如何，所有選手都進入下一輪。以後每一輪的配位，勝者對勝者，負者對負者，即根據此前的積分決定，積分相同或最相近的選手將相互對陣。當然前提是二者在前面的輪次中尚未交手過。在西洋棋比賽中，還要儘量使棋手執黑棋與執白棋的次數相等，普遍採用的辦法是輪換使用黑白棋。但不管怎樣，絕不能出現一名棋手連續3輪執一種顏色的情況。\n\n積分相同的選手配位基本規則是採用賽前排名編號，然後分成上下半區依次配對（如1號對5號，2號對6號...)。在必要的時候還要進一步調整以使棋手輪換先後手比賽，並保證此前相遇過的棋手不再相遇。\n\n具體的配位規則相當複雜，一般比賽的組織者都是通過特定的電腦程式幫助完成。只要嚴格執行，就不會出現組織者主觀制定配位的情況。\n\n比賽總輪次是賽前預先確定好的，一般為為3到9輪，最後的名次由選手的總積分決定。如果出現積分相等的情況，可以通過計算小分（如所有對手的積分總和）或布赫茲破同分法(Buchholz chess rating)決定。", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "japanese", "time_per_move": 113280, "time_control_parameters": { "system": "fischer", "pause_on_weekends": false, "time_control": "fischer", "initial_time": 2419200, "max_time": 2419200, "time_increment": 86400, "speed": "correspondence" }, "is_open": true, "exclude_provisional": false, "group": { "id": 2807, "name": "每星期圍棋GP", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": false, "member_count": 19, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": "2018-08-30T17:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2018-09-01T17:27:41.806072Z", "ended": "2018-09-01T18:16:33.097927Z", "start_waiting": "2018-09-01T17:27:41.613042Z", "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": 108978, "name": "1 / 1", "director": { "id": 1421513, "username": "nhatcuong1024", "country": "un", "icon": "https://secure.gravatar.com/avatar/9485477df4ef646f74d2b3f4177e5129?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 950.1442684842884, "deviation": 62.458924968349436, "volatility": 0.06000367421762685 } }, "ranking": 13.73294049262349, "professional": false, "ui_class": "" }, "description": "Mùa Đông1", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 26, "time_control_parameters": { "system": "byoyomi", "time_control": "byoyomi", "speed": "live", "pause_on_weekends": false, "main_time": 300, "period_time": 15, "periods": 3 }, "is_open": true, "exclude_provisional": false, "group": { "id": 13657, "name": "Ichi-Go PTNK Club", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 29, "icon": "https://user-uploads.online-go.com/8ba1369c7e5510cafbb325500b2f55f3-64.png" }, "auto_start_on_max": true, "time_start": "2023-10-28T13:02:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2023-10-28T13:02:40.931857Z", "ended": "2023-10-28T13:11:16.402201Z", "start_waiting": "2023-10-28T13:02:40.844044Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/8ba1369c7e5510cafbb325500b2f55f3-15.png", "player_count": 2, "ranked": true }, { "id": 70247, "name": "Correspondence 19x19 RoundRobin 2021-01-18 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": 6, "name": "Correspondence 19x19 RoundRobin", "rrule": "DTSTART:20260828T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:58:31.027016Z", "last_run": "2026-08-28T19:00:32.092524Z", "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": "2026-08-31T19:00:00Z", "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": 432000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2021-01-18T19:00:11.411365Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2021-01-18T19:00:13.812496Z", "ended": "2021-05-02T02:19:51.949375Z", "start_waiting": "2021-01-18T19:00:12.429221Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 10, "ranked": true } ] }
