Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=580
{ "count": 59646, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=581", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=579", "results": [ { "id": 125151, "name": "19x19 New Zealand Handicap League #21", "director": { "id": 178104, "username": "dexonsmith", "country": "ca", "icon": "https://user-uploads.online-go.com/448e520df4ffd817b1802a450a4c9058-64.png", "ratings": { "version": 5, "overall": { "rating": 1390.7732166446785, "deviation": 67.55416504748428, "volatility": 0.06064009346038413 } }, "ranking": 22.55312076827671, "professional": false, "ui_class": "supporter" }, "description": "All players welcome. 10 players. Starts only when full.\n\nNew Zealand rules. 19x19 board. Handicap games. Round robin.\n\nFor more tournaments and ladders with New Zealand rules: <https://online-go.com/group/14024>", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "nz", "time_per_move": 88451, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 259200, "max_time": 604800 }, "is_open": true, "exclude_provisional": false, "group": { "id": 14024, "name": "New Zealand Ladders", "summary": "Group for ladders and tournaments that use New Zealand rules.", "require_invitation": false, "is_public": true, "admin_only_tournaments": true, "hide_details": false, "member_count": 80, "icon": "https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-64.png" }, "auto_start_on_max": true, "time_start": "2025-02-27T04:19:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-02-15T05:23:46.376216Z", "ended": "2025-06-21T06:31:09.633448Z", "start_waiting": "2025-02-15T05:23:45.743668Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-15.png", "player_count": 10, "ranked": true }, { "id": 128943, "name": "13x13 Mini League 15k-5k #6", "director": { "id": 1688153, "username": "Mittelmark", "country": "de", "icon": "https://user-uploads.online-go.com/f86d53e1b08ba490783eac759518a835-64.png", "ratings": { "version": 5, "overall": { "rating": 1073.2840100977699, "deviation": 66.95187850935433, "volatility": 0.06002501957710229 } }, "ranking": 16.55410507658349, "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": 59, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2025-06-13T17:00:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 15, "max_ranking": 25, "analysis_enabled": false, "exclusivity": "open", "started": "2025-06-13T10:48:34.756945Z", "ended": "2025-07-22T12:24:35.839984Z", "start_waiting": "2025-06-13T10:48:34.605441Z", "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": 36337, "name": "Kuksu Main Title Tournament 11th Cycle - League C3", "director": { "id": 199065, "username": "Kuksu League", "country": "_United_Federation_of_Planets", "icon": "https://secure.gravatar.com/avatar/068ce77b41c5451811b692b8280d0f68?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1500.0, "deviation": 350.0, "volatility": 0.06 } }, "ranking": 24.303382182144386, "professional": false, "ui_class": "provisional" }, "description": "Kuksu Main Title Tournament 11th Cycle - League C3\n\nTitle Holder: \n<a style=\"color:purple\" href='https://online-go.com/user/view/35184/'>vitality [Kuksu] x2</a>\n\nHall of Fame:\n<table style=\"text-align:center;border:1px solid\">\n<tr>\n\t<th style=\"border:1px solid\">Cycle</th>\n\t<th style=\"border:1px solid\">Title Match Winner</th>\n\t<th style=\"border:1px solid\">Score</th>\n\t<th style=\"border:1px solid\">Title Match Runner-up</th>\n\t<th style=\"border:1px solid\">Title Tournament Winner<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/gold_title_19.png' alt='Gold'></img></th>\n\t<th style=\"border:1px solid\">Title Tournament Runner-up<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/silver_title_19.png' alt='Silver'></img></th>\n\t<th style=\"border:1px solid\">Title Tournament 3rd Place<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/bronze_title_19.png' alt='Bronze'></img></th>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2375'>1</a></td>\n\t<td><b>luke</b></td><td></td><td></td>\n\t<td><b>luke (4d)</b></td><td>davos (5d)</td><td>gomad361 (4d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2384'>2</a></td>\n\t<td><b>gomad361</b></td><td>3-2</td><td>luke</td>\n\t<td><b>luke (4d)</b></td><td>gomad361 (4d)</td><td>hotspur (4d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2391'>3</a></td>\n\t<td><b>Uberdude</b></td><td>∗</td><td>gomad361</td>\n\t<td><b>Uberdude (9d)</b></td><td>KyuT (4d)</td><td>marigo (2k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2406'>4</a></td>\n\t<td><b>Uberdude</b></td><td>5-0</td><td>KyuT</td>\n\t<td><b>KyuT (4d)</b></td><td>quiller (5d)</td><td>morituri (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2424'>5</a></td>\n\t<td><b>Uberdude</b></td><td>5-0</td><td>gomad361</td>\n\t<td><b>gomad361 (4d)</b></td><td>morituri (2d)</td><td>betterlife (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2439'>6</a></td>\n\t<td><b>Uberdude</b></td><td>5-0</td><td>Elin</td>\n\t<td><b>Elin (5d)</b></td><td>gomad361 (4d)</td><td>morituri (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2460'>7</a></td>\n\t<td><b>Uberdude</b></td><td>3-2</td><td>vitality</td>\n\t<td><b>vitality (9d)</b></td><td>Elin (5d)</td><td>gomad361 (4d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2475'>8</a></td>\n\t<td><b>vitality</b></td><td>∗</td><td>Uberdude</td>\n\t<td><b>vitality (9d)</b></td><td>nrx (5d)</td><td>gojohn (4d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/12653'>9</a></td>\n\t<td><b>vitality</b></td><td>5-0</td><td>Sadaharu</td>\n\t<td><b>Sadaharu (7d)</b></td><td>xhu98 (8d)</td><td>tegais (6d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/23029'>10</a></td>\n\t<td>Ongoing: vitality</td><td>0-0</td><td>micky0427</td>\n\t<td><b>micky0427 (7d)</b></td><td>SanDiego (4d)</td><td>tegais (6d)</td>\n</tr>\n<tr>\n\t<td></td>\n\t<td></td><td></td><td></td>\n\t<td>\n\t\t<a href='https://online-go.com/tournament/36244'>[A]</a>\n\t</td>\n\t<td></td>\n\t<td></td>\n</tr>\n<tr>\n\t<td></td>\n\t<td></td><td></td><td></td>\n\t<td>\n\t\t<a href='https://online-go.com/tournament/36245'>[B1]</a>\n\t\t<a href='https://online-go.com/tournament/36247'>[B2]</a>\n\t</td>\n\t<td></td>\n\t<td></td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/36244'>11</a></td>\n\t<td></td><td></td><td></td>\n\t<td>\n\t\t<a href='https://online-go.com/tournament/36334'>[C1]</a>\n\t\t<a href='https://online-go.com/tournament/36335'>[C2]</a>\n\t\t<a href='https://online-go.com/tournament/36337'>[C3]</a>\n\t\t<a href='https://online-go.com/tournament/36338'>[C4]</a>\n\t</td>\n\t<td></td>\n\t<td></td>\n</tr>\n<tr>\n\t<td></td>\n\t<td></td><td></td><td></td>\n\t<td>\n\t\t<a href='https://online-go.com/tournament/36374'>[D1]</a>\n\t\t<a href='https://online-go.com/tournament/36375'>[D2]</a>\n\t\t<a href='https://online-go.com/tournament/36376'>[D3]</a>\n\t\t<a href='https://online-go.com/tournament/36377'>[D4]</a>\n\t\t<a href='https://online-go.com/tournament/36378'>[D5]</a>\n\t\t<a href='https://online-go.com/tournament/36379'>[D6]</a>\n\t\t<a href='https://online-go.com/tournament/36380'>[D7]</a>\n\t\t<a href='https://online-go.com/tournament/36381'>[D8]</a>\n\t</td>\n\t<td></td>\n\t<td></td>\n</tr>\n<tr>\n\t<td></td>\n\t<td></td><td></td><td></td>\n\t<td>\n\t\t<a href='https://online-go.com/tournament/36382'>[E1]</a>\n\t\t<a href='https://online-go.com/tournament/36383'>[E2]</a>\n\t\t<a href='https://online-go.com/tournament/36384'>[E3]</a>\n\t\t<a href='https://online-go.com/tournament/36385'>[E4]</a>\n\t\t<a href='https://online-go.com/tournament/36386'>[E5]</a>\n\t\t<a href='https://online-go.com/tournament/36387'>[E6]</a>\n\t\t<a href='https://online-go.com/tournament/36388'>[E7]</a>\n\t</td>\n\t<td></td>\n\t<td></td>\n</tr>\n</table>\n\n∗ means the games were finished by timeout or retirement.\n\nPlease refer to the basic rules <a href='https://forums.online-go.com/t/league-format-kuksu-title-tournament-rules-and-discussion/5191'>here</a>.", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "korean", "time_per_move": 93120, "time_control_parameters": { "system": "fischer", "pause_on_weekends": false, "time_control": "fischer", "initial_time": 604800, "max_time": 604800, "time_increment": 86400, "speed": "correspondence" }, "is_open": true, "exclude_provisional": false, "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": 2979, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2018-05-04T06:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "invite", "started": "2018-04-30T05:22:16.937711Z", "ended": "2018-10-30T15:47:42.278186Z", "start_waiting": "2018-04-30T05:22:12.933639Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 10, "ranked": true }, { "id": 13769, "name": "Correspondence 19x19 RoundRobin 2016-01-03 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": 6, "name": "Correspondence 19x19 RoundRobin", "rrule": "DTSTART:20260512T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T05:58:31.027016Z", "last_run": "2026-05-12T19:00:49.757522Z", "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": "2026-05-15T19:00:00Z", "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, "max_time": 432000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2016-01-03T01:00:29.115471Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2016-01-03T01:00:48.824908Z", "ended": "2016-05-18T10:54:48.218080Z", "start_waiting": "2016-01-03T01:00:47.530489Z", "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 }, { "id": 83344, "name": "Correspondence 13x13 RoundRobin 2021-12-06 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": 7, "name": "Correspondence 13x13 RoundRobin", "rrule": "DTSTART:20260513T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3", "active": true, "created": "2015-02-20T06:00:14.582400Z", "last_run": "2026-05-13T19:00:49.979102Z", "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": "2026-05-16T19:00:00Z", "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": "2021-12-06T19:00:55.195244Z", "players_start": 4, "first_pairing_method": "slaughter", "subsequent_pairing_method": "slaughter", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2021-12-06T19:01:55.399992Z", "ended": "2022-02-10T15:46:32.885568Z", "start_waiting": "2021-12-06T19:01:54.444202Z", "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": 45171, "name": "はむすたークラス【 楽人リーグ戦 】１３路盤", "director": { "id": 582205, "username": "さかもと", "country": "jp", "icon": "https://user-uploads.online-go.com/a4fd22623c4d90b173eef890e634934d-64.png", "ratings": { "version": 5, "overall": { "rating": 1806.4877161432678, "deviation": 141.8396152914018, "volatility": 0.06002488366424099 } }, "ranking": 28.607415450972766, "professional": false, "ui_class": "" }, "description": "はむすたークラスは１３路盤での開催です。 対象棋力：１９級～１５級\n\n挨拶はしっかり！ マナーを守って楽しく対局しましょう！\n\n定員の１０名になりお申し込みができない場合は、 ２月１２日(火)１９時までに、トーナメント掲示板 あるいは グループ管理者にお知らせください。 ２回負け抜けトーナメントに変更いたします。", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "time_per_move": 44160, "time_control_parameters": { "system": "fischer", "pause_on_weekends": true, "time_control": "fischer", "initial_time": 86400, "max_time": 172800, "time_increment": 43200, "speed": "correspondence" }, "is_open": true, "exclude_provisional": false, "group": { "id": 3048, "name": "【 公式 】楽人リーグ戦", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 37, "icon": "https://user-uploads.online-go.com/b602a3a4c62da69475b1f2bf4b93d4a1-64.png" }, "auto_start_on_max": false, "time_start": "2019-02-15T10:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 15, "analysis_enabled": true, "exclusivity": "open", "started": "2019-02-16T00:39:00.538513Z", "ended": "2019-03-05T06:52:50.009050Z", "start_waiting": "2019-02-16T00:38:59.652792Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/b602a3a4c62da69475b1f2bf4b93d4a1-15.png", "player_count": 4, 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