Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-board_size&page=3698
{ "count": 60911, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=3699", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=3697", "results": [ { "id": 32566, "name": "Live 9x9 Double Elimination Tournament 2017-12-06 22:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260902T140000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-09-02T14:00:32.438412Z", "lead_time_seconds": 1800, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 100 }, "next_run": "2026-09-02T18:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 33, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2017-12-06T22:30:55.623337Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2017-12-06T22:33:58.867998Z", "ended": "2017-12-06T23:15:47.633338Z", "start_waiting": "2017-12-06T22:33:58.480024Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 4, "ranked": true }, { "id": 30375, "name": "神魔之塔 古獸之巢 9x9 升降杯", "director": { "id": 465065, "username": "carefree", "country": "un", "icon": "https://secure.gravatar.com/avatar/29b5eeca165aa74080ced9afdf1cb318?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1518.4605929647748, "deviation": 125.78039513133577, "volatility": 0.06001029404706188 } }, "ranking": 24.586551726670482, "professional": false, "ui_class": "" }, "description": "神魔之塔 古獸之巢 9x9 升降杯", "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": false, "group": { "id": 1795, "name": "神棋之塔Tower of GO", "summary": "", "require_invitation": false, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 9, "icon": "https://user-uploads.online-go.com/bc5ad85082c161635e562186adaf1f19-64.png" }, "auto_start_on_max": false, "time_start": "2017-09-18T18:08:00Z", "players_start": 2, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2017-09-18T18:08:29.775526Z", "ended": "2017-09-18T18:29:50.339744Z", "start_waiting": "2017-09-18T18:08:29.501836Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/bc5ad85082c161635e562186adaf1f19-15.png", "player_count": 2, "ranked": true }, { "id": 85869, "name": "Pause the Third", "director": { "id": 760015, "username": "WatercolourNerd", "country": "gb", "icon": "https://user-uploads.online-go.com/c380d271c48533dbb36337d567bb48b4-64.png", "ratings": { "version": 5, "overall": { "rating": 919.7689384870048, "deviation": 60.82421512390896, "volatility": 0.05991053269819182 } }, "ranking": 12.980765741350792, "professional": false, "ui_class": "" }, "description": "Let's learn to play the ancient game of Go!", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 86400, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "correspondence", "pause_on_weekends": true, "per_move": 86400 }, "is_open": true, "exclude_provisional": true, "group": { "id": 11094, "name": "KCLMS Pause", "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": "2022-02-10T11:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2022-08-08T18:13:15.954829Z", "ended": "2022-08-24T10:28:58.189932Z", "start_waiting": "2022-08-08T18:13:15.832298Z", "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": 29793, "name": "Live 9x9 Double Elimination Tournament 2017-08-28 06:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260902T140000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-09-02T14:00:32.438412Z", "lead_time_seconds": 1800, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 100 }, "next_run": "2026-09-02T18:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 33, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2017-08-28T06:30:07.013295Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2017-08-28T06:30:09.557741Z", "ended": "2017-08-28T07:08:38.981011Z", "start_waiting": "2017-08-28T06:30:09.047370Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 6, "ranked": true }, { "id": 123841, "name": "Kuksu Nines Title Tournament 22nd Cycle", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2005.6088688450825, "deviation": 68.91898711531289, "volatility": 0.06015473951207492 } }, "ranking": 31.028053950463246, "professional": false, "ui_class": "supporter" }, "description": "Kuksu Nines Title Tournament 22nd Cycle\n\nTitle Holder: <a style=\"color:purple\" href='https://online-go.com/player/40318/'>gamesorry [Nines Kuksu] x1</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\">\n\tTitle Tournament Winner\n\t\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/gold_title_9.png' alt='Gold'></img>\n\t</th>\n\t<th style=\"border:1px solid\">\n\t\tTitle Tournament Runner-up\n\t\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/silver_title_9.png' alt='Silver'></img>\n\t</th>\n\t<th style=\"border:1px solid\">\n\t\tTitle Tournament 3rd Place\n\t<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/bronze_title_9.png' alt='Bronze'></img>\n\t</th>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2373'>1</a></td>\n\t<td><b>Neandertaler</b></td><td></td><td></td>\n\t<td><b>Neandertaler (3k)</b></td><td>willbrooks (2d)</td><td>jms (8k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2382'>2</a></td>\n\t<td><b>hotspur</b></td><td>3-2</td><td>Neandertaler</td>\n\t<td><b>hotspur (2d)</b></td><td>Neandertaler (3k)</td><td>KyuT (4d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2392'>3</a></td>\n\t<td><b>KyuT</b></td><td>∗</td><td>hotspur</td>\n\t<td><b>KyuT (4d)</b></td><td>Neandertaler (3k)</td><td>nare (4k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2407'>4</a></td>\n\t<td><b>KyuT</b></td><td>4-1</td><td>gomoucha</td>\n\t<td><b>gomoucha (7k)</b></td><td>joachim (1k)</td><td>topazg (3k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2408'>5</a></td>\n\t<td><b>KlausP</b></td><td>5-0</td><td>KyuT</td>\n\t<td><b>KlausP (3d)</b></td><td>joachim (1k)</td><td>illluck (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2415'>6</a></td>\n\t<td><b>KlausP</b></td><td>5-0</td><td>illluck</td>\n\t<td><b>illluck (1d)</b></td><td>joachim (1k)</td><td>Neandertaler (3k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2419'>7</a></td>\n\t<td><b>KlausP</b></td><td>4-1</td><td>KyuT</td>\n\t<td><b>KyuT (4d)</b></td><td colspan=2>joachim (1k), Neandertaler (3k), ivoszz (5k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2423'>8</a></td>\n\t<td><b>KlausP</b></td><td>3-2</td><td>joachim</td>\n\t<td><b>joachim (1k)</b></td><td>undume (6k)</td><td>ivoszz (5k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2431'>9</a></td>\n\t<td><b>KlausP</b></td><td>4-1</td><td>keiler</td>\n\t<td><b>keiler (1k)</b></td><td>joachim (1k)</td><td>undume (6k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2438'>10</a></td>\n\t<td><b>KlausP</b></td><td>5-0</td><td>surcouf</td>\n\t<td><b>surcouf (1k)</b></td><td>ivoszz (5k)</td><td>joachim (1k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2440'>11</a></td>\n\t<td><b>KlausP</b></td><td>5-0</td><td>surcouf</td>\n\t<td><b>surcouf (1k)</b></td><td>kennabee (1d)</td><td>joachim (1k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2450'>12</a></td>\n\t<td><b>KlausP</b></td><td>5-0</td><td>kennabee</td>\n\t<td><b>kennabee (1d)</b></td><td>Zapp (1k)</td><td>joachim (1k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2461'>13</a></td>\n\t<td><b>joachim</b></td><td>∗</td><td>KlausP</td>\n\t<td><b>joachim (1k)</b></td><td>huangyungjan (3k)</td><td>MatCauthon (2k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2465'>14</a></td>\n\t<td><b>illluck</b></td><td>4-1</td><td>joachim</td>\n\t<td><b>joachim (1k)</b></td><td>illluck (1d)</td><td>MatCauthon (2k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2476'>15</a></td>\n\t<td><b>pollemand</b></td><td>5-0</td><td>illluck</td>\n\t<td><b>pollemand (4d)</b></td><td>MatCauthon (2k)</td><td>Adonroid (3k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2480'>16</a></td>\n\t<td><b>pollemand</b></td><td><a href='https://online-go.com/tournament/2548'>3-2</a></td><td>vitality</td>\n\t<td><b>pollemand (4d)</b></td><td>vitality (5d)</td><td>occupant (4k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2488'>17</a></td>\n\t<td><b>pollemand</b></td><td><a href='https://online-go.com/tournament/2553'>5-0</a></td><td>Mellon</td>\n\t<td><b>Mellon (7k)</b></td><td>zealot (3d)</td><td>smilogo (4k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2498'>18</a></td>\n\t<td><b>pollemand</b></td><td><a href='https://online-go.com/tournament/3156'>5-0</a></td><td>drmwc</td>\n\t<td><b>drmwc (6d)</b></td><td>gamesorry (3d)</td><td>taikobara (6k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/28071'>19</a></td>\n\t<td><b>drmwc</b></td><td><a href='https://online-go.com/tournament/64979'>3-2</a></td><td>gamesorry</td>\n\t<td><b>Sadaharu (9d+)</b></td><td>gamesorry (3d)</td><td>9981 (3k)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/51835'>20</a></td>\n\t<td><b>gamesorry</b></td><td><a href='https://online-go.com/tournament/100939'>4-1 (∗)</a></td><td>drmwc</td>\n\t<td><b>ovijol [4d]</b></td><td>husrev [7d]</td><td>gamesorry [2d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/83360'>21</a></td>\n\t<td></td><td>(TBA)</td><td></td>\n\t<td><b>gasana [3d]</b></td><td>YourLocalShyBoy [3d]</td><td> gs2020 [3d]</td>\n</tr>\n</table>\n\nNotes:\n- ∗ means some of the games ended due to timeout or retirement of a player.\n- The 1st~18th cycles were using league format. Starting from the 19th cycle, the double-elimination format is used.\n- The starting time on this page is an approximation and subject to change. It will be finalized once the announcement is posted in <a href='https://online-go.com/group/515'>OGS Title Tournaments</a> group and <a href='https://forums.online-go.com/t/title-tournament-announcements/10408/'>Title Tournament Announcement</a>.\n- Bots and use of AI are prohibited in this tournament and violators will be disqualified.", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "korean", "time_per_move": 107733, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "pause_on_weekends": true, "time_increment": 86400, "initial_time": 604800, "max_time": 604800 }, "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": 3017, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2025-06-28T15:00:00Z", "players_start": 128, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-06-28T15:00:31.346240Z", "ended": null, "start_waiting": "2025-06-28T15:00:29.451491Z", "board_size": 9, "active_round": 6, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 135, "ranked": true }, { "id": 99580, "name": "Live 9x9 Double Elimination Tournament 2023-01-31 18:30", "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": 2, "name": "Live 9x9 Double Elimination Tournament", "rrule": "DTSTART:20260902T140000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-09-02T14:00:32.438412Z", "lead_time_seconds": 1800, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "size": 9, "time_control_parameters": { "time_control": "byoyomi", "period_time": 30, "main_time": 300, "periods": 3 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", 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