Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=4921
{ "count": 61015, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=4922", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=4920", "results": [ { "id": 1738, "name": "flowman's 9th mini-tournament", "director": { "id": 20221, "username": "flowman", "country": "us", "icon": "https://secure.gravatar.com/avatar/cc24952eeaac55fac50195e61243d089?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1331.8855936701764, "deviation": 63.60684422057915, "volatility": 0.059907493540384216 } }, "ranking": 21.55155487031082, "professional": false, "ui_class": "" }, "description": "", "schedule": null, "title": null, "tournament_type": "roundrobin", "handicap": 0, "rules": "japanese", "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": 386, "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": 7, "max_ranking": 15, "analysis_enabled": false, "exclusivity": "open", "started": "2012-05-22T22:18:18Z", "ended": "2012-05-22T20:18:18Z", "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": 13596, "name": "Correspondence 19x19 Swiss 2015-12-28 17:00", "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": null, "title": null, "tournament_type": "swiss", "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": "2015-12-28T17:00:52.559365Z", "players_start": 10, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2015-12-28T17:01:08.006321Z", "ended": "2019-08-25T18:12:19.907356Z", "start_waiting": "2015-12-28T17:01:07.381617Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 45, "ranked": true }, { "id": 18551, "name": "Tianyuan Nines Title Tournament 2016", "director": { "id": 40318, "username": "gamesorry", "country": "cn", "icon": "https://secure.gravatar.com/avatar/801cba34b77e0105326c402cc482cb09?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 2010.567656741604, "deviation": 68.90930500114358, "volatility": 0.060153245143043765 } }, "ranking": 31.085220759446056, "professional": false, "ui_class": "supporter" }, "description": "Tianyuan Nines Title Tournament 2016\n\nTitle Holder: <a href='https://online-go.com/user/view/64817/mark5000'>mark5000 (2d)</a>\n\nHall of Fame:\n\n<table style=\"text-align:center;\" border='2'>\n<tr><th rowspan=2>Year</th><td colspan=3><b>Title Match</b></td><td colspan=3><b>Title Tournament</b></td></tr>\n<tr>\n\t<th>Winner</th><th>Score</th><th>Runner-up</th>\n\t<th>Winner<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/gold_title_9.png' alt='Gold'></img></th>\n\t<th>Runner-up<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/silver_title_9.png' alt='Silver'></img></th>\n\t<th>3rd Place<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/bronze_title_9.png' alt='Bronze'></img></th>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2379'>2007</a></td>\n\t<td><b>hotspur</b></td><td></td><td></td>\n\t<td><b>hotspur (2d)</b></td><td>dexy</td><td>nare</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2398'>2008</a></td>\n\t<td><b>dexy</b></td><td>∗</td><td>hotspur</td>\n\t<td><b>dexy (1d)</b></td><td>KlausP</td><td>KyuT</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2413'>2009</a></td>\n\t<td><b>KlausP</b></td><td>4-1</td><td>dexy</td>\n\t<td><b>KlausP (3d)</b></td><td>dexy</td><td>KyuT</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2429'>2010</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>maximemichel</td><td>dexy</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2445'>2011</a></td>\n\t<td><b>vitality</b></td><td>∗</td><td>KlausP</td>\n\t<td><b>vitality (5d)</b></td><td>zealot</td><td>illluck</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2467'>2012</a></td>\n\t<td><b>pollemand</b></td><td>4-1</td><td>vitality</td>\n\t<td><b>pollemand (3d)</b></td><td>devariot</td><td>joachim</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2485'>2013</a></td>\n\t<td><b>pollemand</b></td><td>3-2</td><td>taikobara</td>\n\t<td><b>taikobara (7k)</b></td><td>gamesorry</td><td>herminator</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/2504'>2014</a></td>\n\t<td><b>mark5000</b></td><td>4-1</td><td>devariot</td>\n\t<td><b>mark5000 (2d)</b></td><td>devariot</td><td>adhalanay</td>\n</tr>\n<tr>\n\t<td><a href='https://online-go.com/tournament/8064'>2015</a></td>\n\t<td colspan=3>TBA: mark5000 0-0 魑魅魍魉</td>\n\t<td><b>魑魅魍魉 (2d)</b></td><td>一只安东尼</td><td>gamesorry</td>\n</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": "chinese", "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": 3017, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png" }, "auto_start_on_max": false, "time_start": "2016-09-05T07:00:00Z", "players_start": 100, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "open", "started": "2016-09-05T20:06:42.095838Z", "ended": "2017-07-12T18:50:26.263707Z", "start_waiting": "2016-09-05T20:06:21.510977Z", "board_size": 9, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 100, "ranked": true }, { "id": 26345, "name": "Blitz 13x13 Swiss Tournament 2017-04-15 15:30", "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": 3, "name": "Blitz 13x13 Swiss Tournament", "rrule": "DTSTART:20260912T190000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:27:45.234995Z", "last_run": "2026-09-12T19:00:36.923576Z", "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": "2026-09-12T23:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 13, "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": "2017-04-15T15:30:04.478819Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2017-04-15T15:31:06.601360Z", "ended": "2017-04-15T16:08:43.164622Z", "start_waiting": "2017-04-15T15:31:06.325727Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 6, "ranked": true }, { "id": 3050, "name": "Sitewide August 2014 SDKs Live 13x13 - 17. August", "director": { "id": 57612, "username": "Françisa", "country": "de", "icon": "https://user-uploads.online-go.com/9fd5436e7cf3ca679e5109e3698851a0-64.png", "ratings": { "version": 5, "overall": { "rating": 1593.5322236187249, "deviation": 66.13896034607907, "volatility": 0.060198411935194394 } }, "ranking": 25.70367865236043, "professional": false, "ui_class": "" }, "description": "Starting Time is: Sunday, August 17, 00:05 am UTC/GMT. - Please make sure to read the F.A.Q.: http://goo.gl/noU9QQ", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 14, "time_control_parameters": { "time_control": "fischer", "initial_time": 420, "max_time": 420, "time_increment": 10 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": null, "players_start": null, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 21, "max_ranking": 29, "analysis_enabled": false, "exclusivity": "open", "started": "2014-08-17T00:10:18.572466Z", "ended": "2014-08-17T00:48:20.704225Z", "start_waiting": "2014-08-17T00:10:18.071894Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 0, "ranked": true }, { "id": 90964, "name": "Correspondence Weekly McMahon 19x19 2022-06-11 17:00", "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": 9, "name": "Correspondence Weekly McMahon 19x19", "rrule": "DTSTART:20260907T170000Z\nRRULE:FREQ=WEEKLY", "active": true, "created": 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"first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2008-01-20T00:06:00Z", "ended": "2008-03-04T17:53:00Z", "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": 95781, "name": "Correspondence Weekly McMahon 19x19 2022-10-22 17:00", "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": 9, "name": "Correspondence Weekly McMahon 19x19", "rrule": 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