Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4668
{ "count": 59255, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4669", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=subsequent_pairing_method&page=4667", "results": [ { "id": 403, "name": "Hikarushindo2010's mini-tournament", "director": { "id": 5960, "username": "Hikarushindo2010", "country": "un", "icon": "https://secure.gravatar.com/avatar/fda49cdd7e54e86e10bc8c0ba70c5c00?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1090.838728375607, "deviation": 66.2084782667231, "volatility": 0.0600484376359097 } }, "ranking": 16.929685106998882, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2008-01-07T15:30:00Z", "ended": "2008-03-18T20:09:00Z", "start_waiting": null, "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 4470, "name": "Honinbo Main Title Tournament 2015", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2004.4188438214221, "deviation": 67.71437067217448, "volatility": 0.06015576961047741 } }, "ranking": 31.014313855840236, "professional": false, "ui_class": "supporter" }, "description": "Honinbo Main Title Tournament 2015\n\nTitle Holder: <a href='https://online-go.com/user/view/39317/nrx'>nrx (3d)</a>\n\nPast tournaments:\n\n<table style=\"text-align:center;\" border='2'>\n<tr><th rowspan=2>Year</th><th rowspan=2>Title Tournament Winner</th><th colspan=3>Title Match</th></tr>\n<tr><th>Winner</th><th>Score</th><th>Runner-up</th></tr>\n<tr><td><a href='https://online-go.com/tournament/2370'>2007</a></td><td>luke (1d)</td><td>luke</td><td></td><td></td></tr>\n<tr><td><a href='https://online-go.com/tournament/2390'>2008</a></td><td>Uberdude (6d)</td><td>Uberdude</td><td>∗</td><td>luke</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2403'>2009</a></td><td>gomad361 (2d)</td><td>Uberdude</td><td>5-0</td><td>gomad361</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2420'>2010</a></td><td>Elin (3d)</td><td>Uberdude</td><td>5-0</td><td>Elin</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2435'>2011</a></td><td>Uberdude (6d)</td><td>Uberdude</td><td></td><td></td></tr>\n<tr><td><a href='https://online-go.com/tournament/2457'>2012</a></td><td>nrx (3d)</td><td>nrx</td><td>∗</td><td>Uberdude</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2477'>2013</a></td><td>Ongoing (Round 3)</td><td></td><td></td><td></td></tr>\n<tr><td><a href='https://online-go.com/tournament/2495'>2014</a></td><td>Ongoing (Round 2)</td><td></td><td></td><td></td></tr>\n</table>\n\n∗ means the games were finished by timeout or retiring.", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 93120, "time_control_parameters": { "time_control": "fischer", "initial_time": 604800, "max_time": 604800, "time_increment": 86400 }, "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": 2970, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2015-04-01T07:00:00Z", "players_start": 250, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2015-04-01T07:00:59.295390Z", "ended": "2018-01-31T23:24:58.434021Z", "start_waiting": "2015-04-01T07:00:42.893184Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 271, "ranked": true }, { "id": 123037, "name": "Blitz 13x13 Swiss Tournament 2024-12-09 11:30", "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 Site-wide Tournament", "schedule": { "id": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260406T190000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-04-06T19:00:18.098081Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 13, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclude_provisional": true, "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "settings": { "num_rounds": "3", "upper_bar": "20", "lower_bar": "10", "group_size": "3", "maximum_players": 40 }, "next_run": "2026-04-06T23:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 15, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 300, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2024-12-09T11:30:11.663744Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2024-12-09T11:31:11.865118Z", "ended": "2024-12-09T12:18:42.513719Z", "start_waiting": "2024-12-09T11:31:11.674201Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 9, "ranked": true }, { "id": 34522, "name": "Cookies!", "director": { "id": 434287, "username": "plunco123", "country": "sg", "icon": "https://user-uploads.online-go.com/09c2e06377580c17170f0176640e628c-64.png", "ratings": { "version": 5, "overall": { "rating": 1065.148398354857, "deviation": 62.98616519671558, "volatility": 0.060034951495478994 } }, "ranking": 16.377957053584552, "professional": false, "ui_class": "" }, "description": "cookies!", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": -1, "rules": "japanese", "time_per_move": 61, "time_control_parameters": { "system": "fischer", "pause_on_weekends": false, "time_control": "fischer", "initial_time": 120, "max_time": 300, "time_increment": 60, "speed": "live" }, "is_open": true, "exclude_provisional": true, "group": { "id": 25, "name": "Go Basics", "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 17878, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png" }, "auto_start_on_max": true, "time_start": "2018-02-17T10:34:00Z", "players_start": 1, "first_pairing_method": "slide", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 10, "analysis_enabled": true, "exclusivity": "open", "started": "2018-02-17T10:34:32.621328Z", "ended": "2018-02-17T10:39:32.669692Z", "start_waiting": "2018-02-17T10:34:32.205915Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png", "player_count": 2, "ranked": true }, { "id": 1908, "name": "Cody_Star's mini-tournament", "director": { "id": 43092, "username": "Cody_Star", "country": "un", "icon": "https://secure.gravatar.com/avatar/d6e46b0eb1419567f3623b8c761f9920?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1083.4611663327662, "deviation": 71.45379420559873, "volatility": 0.05993273047818384 } }, "ranking": 16.772585143790774, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "chinese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 604800, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 15, "analysis_enabled": false, "exclusivity": "open", "started": "2012-08-17T15:37:24Z", "ended": "2012-08-17T13:37:24Z", "start_waiting": null, "board_size": 9, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 1909, "name": "WangYouQingLe - Summer 2012", "director": { "id": 25394, "username": "dudu888", "country": "un", "icon": "https://secure.gravatar.com/avatar/da8f489ef28445651969c473bb2c402a?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2139.74753115278, "deviation": 63.07958307504888, "volatility": 0.06004811200548243 } }, "ranking": 32.52678856381259, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "chinese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 432000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 21, "max_ranking": 25, "analysis_enabled": false, "exclusivity": "open", "started": "2012-11-15T19:21:46Z", "ended": "2012-11-15T18:21:46Z", "start_waiting": null, "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 4494, "name": "Meijin Main Title Tournament 2015", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2004.4188438214221, "deviation": 67.71437067217448, "volatility": 0.06015576961047741 } }, "ranking": 31.014313855840236, "professional": false, "ui_class": "supporter" }, "description": "Meijin Main Title Tournament 2015\n\nTitle Holder: <a href='https://online-go.com/user/view/35184/vitality'>vitality (5d)</a>\n\nHistory:\n<table style='text-align:center'>\n<tr><th>Year</th><th>Title Tournament Winner</th><th>Title Match</th></tr>\n<tr><td><a href='https://online-go.com/tournament/2387'>2008</a></td><td>Akimoon (1k)</td><td><b>Akimoon</b></td></tr>\n<tr><td><a href='https://online-go.com/tournament/2400'>2009</a></td><td>Uberdude (6d)</td><td><b>Uberdude</b> 2:0 Akimoon ∗</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2416'>2010</a></td><td>gomad361 (2d)</td><td><b>Uberdude</b> 5:0 gomad361</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2432'>2011</a></td><td>Rathbone (4d)</td><td><b>Uberdude</b> 3:0 Rathbone ∗</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2454'>2012</a></td><td>vitality (5d)</td><td><b>vitality</b> 5:0 Uberdude ∗</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2472'>2013</a></td><td>gamesorry (2d)</td><td>vitality 0:0 gamesorry (Ongoing)</td></tr>\n<tr><td><a href='https://online-go.com/tournament/2492'>2014</a></td><td>Ongoing (Round 1)</td><td></td></tr>\n</table>\n\n∗ means the games were finished by timeout or retiring.", "schedule": null, "title": null, "tournament_type": "s_mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 93120, "time_control_parameters": { "time_control": "fischer", "initial_time": 604800, "max_time": 604800, "time_increment": 86400 }, "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": 2970, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2015-02-01T08:00:00Z", "players_start": 100, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2015-02-01T08:00:31.484208Z", "ended": "2018-02-17T00:41:21.178959Z", "start_waiting": "2015-02-01T08:00:19.573621Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 182, "ranked": true }, { "id": 34161, "name": "OGC Open", "director": { "id": 138181, "username": "Clossius", "country": "us", "icon": "https://user-uploads.online-go.com/423037a54347a4a9a1ae2eaf15ceea96-64.png", "ratings": { "version": 5, "overall": { "rating": 2009.108246484941, "deviation": 62.20658121414229, "volatility": 0.06018656363339447 } }, "ranking": 31.068410772900062, "professional": false, "ui_class": "supporter" }, "description": "The first OGC Tournament. Open to all players!\n\nMcMahon Rules - Paired by Strength\n20 min 30x5 Byo Yomi\n4 rounds\n\nLet's get some competitive games going!", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 43, "time_control_parameters": { "period_time": 30, "main_time": 1200, "system": "byoyomi", "pause_on_weekends": false, "time_control": "byoyomi", "periods": 5, "speed": "live" }, "is_open": true, "exclude_provisional": true, "group": { "id": 2144, "name": "The Online Go Club", "summary": "A fun group for players to play and make friends!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 246, "icon": "https://user-uploads.online-go.com/806d6fed72c1e320ac298fb816c0b8fc-64.png" }, "auto_start_on_max": false, "time_start": "2018-02-03T18:01:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": false, "exclusivity": "open", "started": "2018-02-03T18:01:16.750654Z", "ended": "2018-02-03T19:57:29.993936Z", "start_waiting": "2018-02-03T18:01:16.411878Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/806d6fed72c1e320ac298fb816c0b8fc-15.png", "player_count": 5, "ranked": true }, { "id": 1910, "name": "Ferran's mini-tournament", "director": { "id": 16106, "username": "Ferran", "country": "_cat", "icon": "https://user-uploads.online-go.com/2a1a4ed028d9734d66a278df7b11d1d9-64.png", "ratings": { "version": 5, "overall": { "rating": 1297.7915684813977, "deviation": 68.70602192447132, "volatility": 0.060008699537978626 } }, "ranking": 20.95123714073324, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": -1, "rules": "japanese", "time_per_move": 86400, "time_control_parameters": { "time_control": "fischer", "initial_time": 259200, "max_time": 1728000, "time_increment": 86400 }, "is_open": true, "exclude_provisional": false, "group": { "id": 78, "name": "OGS Mini Tournaments", "summary": "The home for all of the old OGS mini tournaments", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 383, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 10, "analysis_enabled": false, "exclusivity": "open", "started": "2012-09-11T12:32:34Z", "ended": "2012-09-11T10:32:34Z", "start_waiting": null, "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 0, "ranked": true }, { "id": 10423, "name": "FSTS First Marathon", "director": { "id": 135535, "username": "DarkSpirit", "country": "_CIS", "icon": "https://user-uploads.online-go.com/3ff0cbeb74378914ca08a8ab7741274f-64.png", "ratings": { "version": 5, "overall": { "rating": 1368.452026020624, "deviation": 62.29275318546769, "volatility": 0.05999468544710196 } }, "ranking": 22.178561397357377, "professional": false, "ui_class": "" }, "description": "Tournament dedicated to the first anniversary of the Four Seasons Tournament Series group", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 52800, "time_control_parameters": { "time_control": "canadian", "period_time": 432000, "main_time": 864000, "stones_per_period": 10 }, "is_open": true, "exclude_provisional": true, "group": { "id": 353, "name": "Four Seasons Tournament Series", "summary": "Серия турниров \"Четыре Сезона\"", "require_invitation": true, "is_public": false, "admin_only_tournaments": false, "hide_details": true, "member_count": 623, "icon": "https://user-uploads.online-go.com/da3625d8ecb510c14d65689ea409862b-64.png" }, "auto_start_on_max": false, "time_start": "2015-10-01T12:00:00Z", "players_start": 5, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "group", "started": "2015-10-01T12:00:49.856304Z", "ended": "2018-03-22T15:15:23.645414Z", "start_waiting": "2015-10-01T12:00:48.805640Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/da3625d8ecb510c14d65689ea409862b-15.png", "player_count": 42, "ranked": true } ] }
