Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments/?format=api&ordering=-board_size&page=1259
{ "count": 59645, "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=1260", "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-board_size&page=1258", "results": [ { "id": 16883, "name": "Blitz 19x19 Elimination Tournament 2016-04-24 21:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260515T130000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-05-15T13:00:49.924068Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "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": "2026-05-15T17:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2016-04-24T21:30:00.662503Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2016-04-24T21:30:02.242987Z", "ended": "2016-04-24T21:54:45.419612Z", "start_waiting": "2016-04-24T21:30:02.108815Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 4, "ranked": true }, { "id": 130420, "name": "1776s open tournaments 0.0011", "director": { "id": 1436588, "username": "Arrow A6 anti-", "country": "zz", "icon": "https://user-uploads.online-go.com/8670729a0e8d1142fea14d8bd6800517-64.png", "ratings": { "version": 5, "overall": { "rating": 588.6751839572613, "deviation": 80.73457404236709, "volatility": 0.0636275307525229 } }, "ranking": 5, "professional": false, "ui_class": "" }, "description": "A Tournament series", "schedule": null, "title": null, "tournament_type": "double_elimination", "handicap": 0, "rules": "aga", "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": true, "group": { "id": 13797, "name": " 无间勤碁术化 Go Advance forward forever", "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n In Your 💖 Go to Universes everywhere", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 496, "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-64.png" }, "auto_start_on_max": false, "time_start": "2025-07-16T11:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2025-07-16T11:01:03.765958Z", "ended": "2025-09-29T13:56:42.548799Z", "start_waiting": "2025-07-16T11:01:03.656010Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-15.png", "player_count": 7, "ranked": true }, { "id": 117524, "name": "19x19 Open D.E. Cup #75", "director": { "id": 1015644, "username": "wiadp1", "country": "pl", "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png", "ratings": { "version": 5, "overall": { "rating": 1265.26504498289, "deviation": 69.81530038696661, "volatility": 0.060213361593959625 } }, "ranking": 20.363634477779126, "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": 73, "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png" }, "auto_start_on_max": true, "time_start": "2024-07-07T21:00:00Z", "players_start": 8, "first_pairing_method": "random", "subsequent_pairing_method": "random", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2024-07-02T14:13:58.296651Z", "ended": "2025-04-22T22:24:44.359099Z", "start_waiting": "2024-07-02T14:13:58.177312Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png", "player_count": 8, "ranked": true }, { "id": 12673, "name": "Kuksu Main Title Tournament 9th Cycle - Group E6", "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 9th Cycle Group E6\n\nTitle Holder: <a href='https://online-go.com/user/view/35184/vitality'>vitality (5d)</a>\n\nPrevious cycles:\n<table style=\"text-align:center;\" border='2'>\n<tr><th rowspan=2>Cycle</th><td colspan=3><b>Title Match</b></td><td colspan=3><b>Title Tournament</b></td></tr>\n<tr>\n <th>Winner</th><th>Score</th><th>Runner-up</th>\n <th>Winner<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/gold_title_19.png' alt='Gold'></img></th>\n <th>Runner-up<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/silver_title_19.png' alt='Silver'></img></th>\n <th>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 <td><a href='https://online-go.com/tournament/2375'>1</a></td>\n <td><b>luke</b></td><td></td><td></td>\n <td><b>luke (2d)</b></td><td>davos</td><td>gomad361</td>\n</tr>\n<tr>\n <td><a href='https://online-go.com/tournament/2384'>2</a></td>\n <td><b>gomad361</b></td><td>3-2</td><td>luke</td>\n <td><b>luke (2d)</b></td><td>gomad361</td><td>hotspur</td>\n</tr>\n<tr>\n <td><a href='https://online-go.com/tournament/2391'>3</a></td>\n <td><b>Uberdude</b></td><td>∗</td><td>gomad361</td>\n <td><b>Uberdude (6d)</b></td><td>KyuT</td><td>marigo</td>\n</tr>\n<tr>\n <td><a href='https://online-go.com/tournament/2406'>4</a></td>\n <td><b>Uberdude</b></td><td>5-0</td><td>KyuT</td>\n <td><b>KyuT (4d)</b></td><td>quiller</td><td>morituri</td>\n</tr>\n<tr>\n <td><a href='https://online-go.com/tournament/2424'>5</a></td>\n <td><b>Uberdude</b></td><td>5-0</td><td>gomad361</td>\n <td><b>gomad361 (2d)</b></td><td>morituri</td><td>betterlife</td>\n</tr>\n<tr>\n <td><a href='https://online-go.com/tournament/2439'>6</a></td>\n <td><b>Uberdude</b></td><td>5-0</td><td>Elin</td>\n <td><b>Elin (3d)</b></td><td>gomad361</td><td>morituri</td>\n</tr>\n<tr>\n <td><a href='https://online-go.com/tournament/2460'>7</a></td>\n <td><b>Uberdude</b></td><td>3-2</td><td>vitality</td>\n <td><b>vitality (5d)</b></td><td>Elin</td><td>gomad361</td>\n</tr>\n<tr>\n <td><a href='https://online-go.com/tournament/2475'>8</a></td>\n <td><b>vitality</b></td><td>∗</td><td>Uberdude</td>\n <td><b>vitality (5d)</b></td><td>nrx</td><td>gojohn</td>\n</tr> \n<tr>\n <td rowspan=5><a href='#'>9</a></td>\n <td rowspan=5 colspan=3></td>\n <td colspan=3>\n <a href='https://online-go.com/tournament/12653'>[A]</a>\n </td>\n</tr>\n<tr>\n <td colspan=3>\n <a href='https://online-go.com/tournament/12654'>[B1]</a>\n <a href='https://online-go.com/tournament/12655'>[B2]</a>\n </td>\n</tr>\n<tr>\n <td colspan=3>\n <a href='https://online-go.com/tournament/12656'>[C1]</a>\n <a href='https://online-go.com/tournament/12657'>[C2]</a>\n <a href='https://online-go.com/tournament/12658'>[C3]</a>\n <a href='https://online-go.com/tournament/12659'>[C4]</a>\n </td>\n</tr>\n<tr>\n <td colspan=3>\n <a href='https://online-go.com/tournament/12660'>[D1]</a>\n <a href='https://online-go.com/tournament/12661'>[D2]</a>\n <a href='https://online-go.com/tournament/12662'>[D3]</a>\n <a href='https://online-go.com/tournament/12663'>[D4]</a>\n <a href='https://online-go.com/tournament/12664'>[D5]</a>\n <a href='https://online-go.com/tournament/12665'>[D6]</a>\n <a href='https://online-go.com/tournament/12666'>[D7]</a>\n <a href='https://online-go.com/tournament/12667'>[D8]</a>\n </td>\n</tr>\n<tr>\n <td colspan=3>\n <a href='https://online-go.com/tournament/12668'>[E1]</a>\n <a href='https://online-go.com/tournament/12669'>[E2]</a>\n <a href='https://online-go.com/tournament/12670'>[E3]</a>\n <a href='https://online-go.com/tournament/12671'>[E4]</a>\n <a href='https://online-go.com/tournament/12672'>[E5]</a>\n <a href='https://online-go.com/tournament/12673'>[E6]</a>\n </td>\n</tr>\n</table>\n\n∗ means the games were finished by timeout or retiring.\n\nRules could be found <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": { "time_control": "fischer", "initial_time": 604800, "max_time": 604800, "time_increment": 86400 }, "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": true, "time_start": "2015-12-03T00:00:00Z", "players_start": 10, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": true, "exclusivity": "invite", "started": "2015-12-02T18:37:51.609427Z", "ended": "2016-04-26T01:20:08.631662Z", "start_waiting": "2015-12-02T18:37:51.033202Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png", "player_count": 6, "ranked": true }, { "id": 16910, "name": "Blitz 19x19 Elimination Tournament 2016-04-25 21:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260515T130000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-05-15T13:00:49.924068Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "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": "2026-05-15T17:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2016-04-25T21:30:14.181804Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2016-04-25T21:30:15.870857Z", "ended": "2016-04-25T22:34:41.065494Z", "start_waiting": "2016-04-25T21:30:15.670862Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 11, "ranked": true }, { "id": 16914, "name": "Blitz 19x19 Elimination Tournament 2016-04-26 01:30", "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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260515T130000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-05-15T13:00:49.924068Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "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": "2026-05-15T17:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2016-04-26T01:30:27.718012Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2016-04-26T01:30:28.311864Z", "ended": "2016-04-26T01:53:28.644450Z", "start_waiting": "2016-04-26T01:30:28.226943Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 5, "ranked": true }, { "id": 16913, "name": "Live 19x19 Swiss Tournament 2016-04-26 00:30", "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": 4, "name": "Live 19x19 Swiss Tournament", "rrule": "DTSTART:20260515T160000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:30:39.250689Z", "last_run": "2026-05-15T16:00:49.936983Z", "lead_time_seconds": 1800, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", 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