Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=time_start&page=4533
{ "count": 58868, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=time_start&page=4534", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=time_start&page=4532", "results": [ { "id": 110363, "name": "9x9 Mini League 10k-25k #199", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1311.3181752510495, "deviation": 70.93689401973292, "volatility": 0.06014441907737159 } }, "ranking": 21.19127591489654, "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": 95543, "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": 685, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png" }, "auto_start_on_max": true, "time_start": "2023-12-10T20:05:00Z", "players_start": 5, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 20, "analysis_enabled": true, "exclusivity": "open", "started": "2023-12-10T14:12:23.965770Z", "ended": "2024-01-10T04:06:57.361367Z", "start_waiting": "2023-12-10T14:12:23.835892Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png", "player_count": 5, "ranked": true }, { "id": 110271, "name": "13x13 Open D.E. Cup #29", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1311.3181752510495, "deviation": 70.93689401973292, "volatility": 0.06014441907737159 } }, "ranking": 21.19127591489654, "professional": false, "ui_class": "" }, "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 90782, "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": 12599, "name": "GO Special Tournaments", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 64, "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png" }, "auto_start_on_max": true, "time_start": "2023-12-10T21:00:00Z", "players_start": 8, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2023-12-10T11:01:44.263115Z", "ended": "2024-08-30T12:39:46.957705Z", "start_waiting": "2023-12-10T11:01:44.166364Z", "board_size": 13, "active_round": null, "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png", "player_count": 8, "ranked": true }, { "id": 109435, "name": "Honinbo Main Title Tournament 2023", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2000.7972568551363, "deviation": 69.46442720129943, "volatility": 0.060157485864512514 } }, "ranking": 30.972448568668963, "professional": false, "ui_class": "supporter" }, "description": "Honinbo Main Title Tournament 2023\n\nTitle Holder:\n<a style=\"color:red\" href='https://online-go.com/user/view/43936/'>Sadaharu [Honinbo] x2+1</a>\n\nHall of Fame:\n<table style=\"text-align:center;border:1px solid\">\n<tr>\n\t<th style=\"border:1px solid\">Year</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/2370'>2007</a></td>\n\t<td><b>luke</b></td><td></td><td></td>\n\t<td><b>luke (2d)</b></td><td>dexy (1d)</td><td>davos (3d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2390'>2008</a></td>\n\t<td><b>Uberdude</b></td><td>∗</td><td>luke</td>\n\t<td><b>Uberdude (6d)</b></td><td>KyuT (4d)</td><td>gomad361 (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2403'>2009</a></td>\n\t<td><b>Uberdude</b></td><td>5-0</td><td>gomad361</td>\n\t<td><b>gomad361 (2d)</b></td><td>morituri (2d)</td><td>dexy (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2420'>2010</a></td>\n\t<td><b>Uberdude</b></td><td>5-0</td><td>Elin</td>\n\t<td><b>Elin (3d)</b></td><td>dexy (1d)</td><td>gomad361 (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2435'>2011</a></td>\n\t<td><b>Uberdude</b></td><td></td><td></td>\n\t<td><b>Uberdude (6d)</b></td><td>vitality (5d)</td><td>Kobajagi (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2457'>2012</a></td>\n\t<td><b>nrx</b></td><td>∗</td><td>Uberdude</td>\n\t<td><b>nrx (3d)</b></td><td>tegais (3d)</td><td>vitality (5d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2477'>2013</a></td>\n\t<td><b>vitality</b></td><td>5-0</td><td>nrx</td>\n\t<td><b>vitality (5d)</b></td><td>Sadaharu (5d)</td><td>wurfmaul (1d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2495'>2014</a></td>\n\t<td><b>vitality</b></td><td>5-0</td><td>Sadaharu</td>\n\t<td><b>vitality (5d)</b></td><td>Sadaharu (5d)</td><td>nrx (3d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/4470'>2015</a></td>\n\t<td><b>Sadaharu</b></td>\n\t<td>5-0</td>\n\t<td>vitality</td>\n\t<td><b>Sadaharu (4d)</b></td><td>Staffan (7d)</td><td>GreenLeaf (5d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/15379'>2016</a></td>\n\t<td><b>meteor</b></td>\n\t<td>4-1 (∗)</td>\n\t<td>Sadaharu</td>\n\t<td><b>micky0427 (6d)</b></td>\n\t<td>Vladas (6d)</td>\n\t<td>meteor (2d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/25799'>2017</a></td>\n\t<td><b>Sadaharu</b></td>\n\t<td><a href='https://online-go.com/tournament/73910'>5-0</a></td>\n\t<td>meteor</td>\n\t<td><b>Sadaharu (9d)</b></td>\n\t<td>sha7 (4d)</td>\n\t<td>asdffdsaasdffdsa (4d)</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/37246'>2018</a></td>\n\t<td><b>Sadaharu</b></td>\n\t<td><a href='https://online-go.com/tournament/87344'>5-0 (∗)</a></td>\n\t<td>bigko</td>\n\t<td><b>rzhang20877 [9d]</b></td>\n\t<td>Sadaharu [7d]</td>\n\t<td>bigko [6d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/48518'>2019</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>Neandertaler [4d]</b></td>\n\t<td>Puffin888 [6d]</td>\n\t<td>palusijf [6d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/56651'>2020</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>Neandertaler [3d]</b></td>\n\t<td>au-delà [4d]</td>\n\t<td>bigko [6d]</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/70977'>2021</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td>Ongoing: Round 3</td>\n\t<td></td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/89262'>2022</a></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td></td>\n\t<td>Ongoing: Round 2</td>\n\t<td></td>\n</tr>\n</table>\n\n∗ means there were games finished by timeout or retirement. Old OGS ranks are displayed for cycles before 2015.\n\nNotes: \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": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 91187, "time_control_parameters": { "system": "fischer", "time_control": "fischer", "speed": "correspondence", "time_increment": 86400, "initial_time": 604800, "max_time": 604800 }, "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": 2952, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2023-12-10T21:00:00Z", "players_start": 150, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2023-12-10T21:00:39.762585Z", "ended": null, "start_waiting": "2023-12-10T21:00:31.743211Z", "board_size": 19, "active_round": 3, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 162, "ranked": true }, { "id": 110270, "name": "19x19 Open D.E. Cup #52", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1311.3181752510495, "deviation": 70.93689401973292, "volatility": 0.06014441907737159 } }, "ranking": 21.19127591489654, "professional": false, "ui_class": "" }, "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "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": 12599, "name": "GO Special Tournaments", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 64, "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png" }, "auto_start_on_max": true, "time_start": "2023-12-10T22:00:00Z", "players_start": 8, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2023-12-10T04:32:40.493285Z", "ended": "2025-01-29T04:30:38.201125Z", "start_waiting": "2023-12-10T04:32:40.381900Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png", "player_count": 8, "ranked": true }, { "id": 110501, "name": "Live 9x9 Double Elimination Tournament 2023-12-10 22:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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:20251229T220000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2025-12-29T22:00:45.461818Z", "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": "2025-12-30T02:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 41, "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": "2023-12-10T22:30:31.463214Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2023-12-10T22:31:30.209906Z", "ended": "2023-12-10T23:26:17.882199Z", "start_waiting": "2023-12-10T22:31:29.982969Z", "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png", "player_count": 10, "ranked": true }, { "id": 110505, "name": "Live 9x9 Double Elimination Tournament 2023-12-11 02:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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:20251229T220000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2025-12-29T22:00:45.461818Z", "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": "2025-12-30T02:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "japanese", "time_per_move": 41, "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": "2023-12-11T02:30:30.748378Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2023-12-11T02:31:30.177334Z", "ended": "2023-12-11T02:46:01.453273Z", "start_waiting": "2023-12-11T02:31:30.053468Z", "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": 110509, "name": "Live 9x9 Double Elimination Tournament 2023-12-11 06:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1125.8827017028436, "deviation": 78.19731452501959, 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