HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 58754,
"next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=430",
"previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=428",
"results": [
{
"id": 24293,
"name": "Correspondence 13x13 RoundRobin 2017-01-31 01:00",
"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": 7,
"name": "Correspondence 13x13 RoundRobin",
"rrule": "DTSTART:20251217T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
"active": true,
"created": "2015-02-20T06:00:14.582400Z",
"last_run": "2025-12-17T19:01:04.514158Z",
"lead_time_seconds": 86400,
"tournament_type": "roundrobin",
"handicap": 0,
"rules": "japanese",
"size": 13,
"time_control_parameters": {
"time_control": "fischer",
"initial_time": 259200,
"pause_on_weekends": true,
"max_time": 259200,
"time_increment": 86400
},
"min_ranking": 0,
"max_ranking": 36,
"analysis_enabled": true,
"exclude_provisional": true,
"players_start": 4,
"first_pairing_method": "slaughter",
"subsequent_pairing_method": "slaughter",
"settings": {
"num_rounds": "3",
"upper_bar": "20",
"lower_bar": "10",
"group_size": "3",
"maximum_players": 10
},
"next_run": "2025-12-20T19:00:00Z",
"base_points": "10.0"
},
"title": null,
"tournament_type": "roundrobin",
"handicap": 0,
"rules": "japanese",
"time_per_move": 89280,
"time_control_parameters": {
"time_control": "fischer",
"initial_time": 259200,
"max_time": 259200,
"time_increment": 86400
},
"is_open": true,
"exclude_provisional": true,
"group": null,
"auto_start_on_max": false,
"time_start": "2017-01-31T01:00:24.016497Z",
"players_start": 4,
"first_pairing_method": "slaughter",
"subsequent_pairing_method": "slaughter",
"min_ranking": 0,
"max_ranking": 36,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2017-01-31T01:00:44.674103Z",
"ended": "2017-02-23T20:27:59.725331Z",
"start_waiting": "2017-01-31T01:00:43.501695Z",
"board_size": 13,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png",
"player_count": 8,
"ranked": true
},
{
"id": 100833,
"name": "Have fun",
"director": {
"id": 1004942,
"username": "Taybuddyz",
"country": "us",
"icon": "https://secure.gravatar.com/avatar/b9464ad096ebc62e2a7ef87a9f39ebc6?s=64&d=retro",
"ratings": {
"version": 5,
"overall": {
"rating": 701.5807232241659,
"deviation": 61.86619545966917,
"volatility": 0.05996754285214079
}
},
"ranking": 6.712057816086596,
"professional": false,
"ui_class": ""
},
"description": "Have fun",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": 0,
"rules": "japanese",
"time_per_move": 31,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "live",
"pause_on_weekends": false,
"time_increment": 30,
"initial_time": 120,
"max_time": 300
},
"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": 17643,
"icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
},
"auto_start_on_max": false,
"time_start": "2023-03-07T05:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 29,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2023-12-05T08:03:28.203711Z",
"ended": "2023-12-05T08:11:05.845654Z",
"start_waiting": "2023-12-05T08:03:28.100409Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
"player_count": 4,
"ranked": true
},
{
"id": 88630,
"name": "リング ∼ The most cursed tournament ever",
"director": {
"id": 446365,
"username": "ChessKitten",
"country": "un",
"icon": "https://secure.gravatar.com/avatar/3cc33900adbcc0822869a26ef5a5e26a?s=64&d=retro",
"ratings": {
"version": 5,
"overall": {
"rating": 1500,
"deviation": 350,
"volatility": 0.06
}
},
"ranking": 24.303382182144386,
"professional": false,
"ui_class": "provisional"
},
"description": "You accidentally downloaded a shared video and watched a cursed video of a Go match between Fujiwara Sai and one of the strongest players in ancient Japan, during which Sai was falsely accused of cheating. He was shamed and he later took his own life, after which he became a vengeful ghost who put a curse on anyone who is unlucky enough to see his dark past.\n\nYour smartphone rang after you watched the video. You picked up the call, but there was only eerie silence from the other end.\n\nYour computer screen blacked out for unknown reason, and stated the following in bloody stained words on the screen.\n\n'You are to play in a tournament whereby you have only 7 days of game time to complete each correspondence game. If you fail to complete the game in time, the darkest curse shall fall upon you...'\n\nThe winner of the tournament shall earn the right to challenge Evil Sai. You must beat him fair and square at Go in order to break the eternal curse and set his spirit to rest in peace. Do you have what it takes to survive this horror tournament?",
"schedule": null,
"title": null,
"tournament_type": "s_mcmahon",
"handicap": 0,
"rules": "japanese",
"time_per_move": 6720,
"time_control_parameters": {
"system": "absolute",
"time_control": "absolute",
"speed": "correspondence",
"pause_on_weekends": false,
"total_time": 604800
},
"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": 17643,
"icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
},
"auto_start_on_max": false,
"time_start": "2023-07-07T11:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": false,
"exclusivity": "open",
"started": "2023-07-07T11:00:29.941157Z",
"ended": "2023-09-24T13:27:59.629680Z",
"start_waiting": "2023-07-07T11:00:28.495385Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
"player_count": 41,
"ranked": true
},
{
"id": 73331,
"name": "9x9 Classic W.D.D.T. IX",
"director": {
"id": 929191,
"username": "EnsoZEN",
"country": "cz",
"icon": "https://user-uploads.online-go.com/9de5727796a655588080bb89cc627977-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1463.5820448380764,
"deviation": 67.30723430909097,
"volatility": 0.06004488935091738
}
},
"ranking": 23.734396346844115,
"professional": false,
"ui_class": ""
},
"description": "Classic weekly double death tournament.",
"schedule": null,
"title": null,
"tournament_type": "double_elimination",
"handicap": 0,
"rules": "japanese",
"time_per_move": 172800,
"time_control_parameters": {
"system": "simple",
"time_control": "simple",
"speed": "correspondence",
"pause_on_weekends": true,
"per_move": 172800
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 8129,
"name": "ZEN Go",
"summary": "The search for happiness is one of the chief sources of unhappiness.",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 47,
"icon": "https://user-uploads.online-go.com/ff052c6c23b77d2514fe70ad0dcce3bb-64.png"
},
"auto_start_on_max": false,
"time_start": "2021-05-02T23:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 26,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2021-05-02T13:52:49.081961Z",
"ended": "2022-01-13T15:10:09.138751Z",
"start_waiting": "2021-05-02T13:52:48.902754Z",
"board_size": 9,
"active_round": null,
"icon": "https://user-uploads.online-go.com/ff052c6c23b77d2514fe70ad0dcce3bb-15.png",
"player_count": 8,
"ranked": true
},
{
"id": 73974,
"name": "Mingren Main 2017 Title Match - Board 5",
"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": "<!-- \nMingren Main 2017 Title Match - Board 1\n-->\n\nTitle Holder: \n<a style=\"color:deepskyblue\" href='https://online-go.com/user/view/28520/'>yopology [Mingren] x1</a>\n\n<table style=\"text-align:center;empty-cells:hide;table-layout:fixed;border:1px solid\">\n<tr>\n\t<td style=\"text-align:center\"><b>Edition</b></td>\n\t<td style=\"text-align:center\"><b>Title</b></td>\n\t<td style=\"text-align:center\"><b>Class</b></td>\n\t<td style=\"text-align:center\"><b>Year</b></td>\n\t<td style=\"text-align:center\"><b>Player 1</b></td>\n\t<td style=\"text-align:center\"><b>Player 2</b></td>\n\t<td></td>\n\t<td></td>\n\t<td><b>Matches</b></td>\n\t<td></td>\n\t<td></td>\n</tr>\n<tr>\n\t<td>11th</td>\n\t<td style=\"color:deepskyblue\">Mingren</td>\n\t<td>Main</td>\n\t<td>2017</td>\n\t<td><a style=\"color:deepskyblue\" href='https://online-go.com/player/28520/yopology'>yopology [Mingren]</a></td>\n\t<td><a href='https://online-go.com/player/418737/Puffin888'>Puffin888 [6d]</a></td>\n\t<td><a style=\"color:skyblue\" href='https://online-go.com/game/view/33264181'>Board 1</a></td>\n\t<td><a style=\"color:skyblue\" href='https://online-go.com/game/view/33290307'>Board 2</a></td>\n\t<td><a style=\"color:skyblue\" href='https://online-go.com/game/view/33290344'>Board 3</a></td>\n\t<td><a style=\"color:skyblue\" href='https://online-go.com/game/view/33290401'>Board 4</a></td>\n\t<td><a style=\"color:skyblue\" href='https://online-go.com/tournament/73974'>Board 5</a></td>\n</tr>\n</table>\n\nTitle Tournament: <a href='https://online-go.com/tournament/30642'>Mingren Main Title Tournament 2017</a>\n\nNote:\n- Bots and use of AI are prohibited in this tournament and violators will be disqualified.",
"schedule": null,
"title": null,
"tournament_type": "elimination",
"handicap": 0,
"rules": "chinese",
"time_per_move": 93120,
"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": 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": 2948,
"icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-64.png"
},
"auto_start_on_max": false,
"time_start": "2021-04-28T22:19:00Z",
"players_start": 2,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "invite",
"started": "2021-04-28T22:19:12.922931Z",
"ended": "2021-04-29T11:20:52.702234Z",
"start_waiting": "2021-04-28T22:19:12.794067Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/e172c7a14ec09bda65360d6b80884e67-15.png",
"player_count": 2,
"ranked": true
},
{
"id": 78980,
"name": "Correspondence 19x19 RoundRobin 2021-08-19 19:00",
"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": 6,
"name": "Correspondence 19x19 RoundRobin",
"rrule": "DTSTART:20251219T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
"active": true,
"created": "2015-02-20T05:58:31.027016Z",
"last_run": "2025-12-19T19:01:04.430048Z",
"lead_time_seconds": 86400,
"tournament_type": "roundrobin",
"handicap": 0,
"rules": "japanese",
"size": 19,
"time_control_parameters": {
"time_control": "fischer",
"initial_time": 259200,
"pause_on_weekends": true,
"max_time": 432000,
"time_increment": 86400
},
"min_ranking": 0,
"max_ranking": 36,
"analysis_enabled": true,
"exclude_provisional": true,
"players_start": 4,
"first_pairing_method": "slaughter",
"subsequent_pairing_method": "slaughter",
"settings": {
"num_rounds": "3",
"upper_bar": "20",
"lower_bar": "10",
"group_size": "3",
"maximum_players": 10
},
"next_run": "2025-12-22T19:00:00Z",
"base_points": "10.0"
},
"title": null,
"tournament_type": "roundrobin",
"handicap": 0,
"rules": "japanese",
"time_per_move": 89280,
"time_control_parameters": {
"time_control": "fischer",
"initial_time": 259200,
"pause_on_weekends": true,
"max_time": 432000,
"time_increment": 86400
},
"is_open": true,
"exclude_provisional": true,
"group": null,
"auto_start_on_max": false,
"time_start": "2021-08-19T19:00:17.581232Z",
"players_start": 4,
"first_pairing_method": "slaughter",
"subsequent_pairing_method": "slaughter",
"min_ranking": 0,
"max_ranking": 36,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2021-08-19T19:00:22.102787Z",
"ended": "2021-10-06T18:29:20.762157Z",
"start_waiting": "2021-08-19T19:00:19.564851Z",
"board_size": 19,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
"player_count": 10,
"ranked": true
},
{
"id": 75542,
"name": "Just Join This!",
"director": {
"id": 846011,
"username": "30huruih",
"country": "us",
"icon": "https://secure.gravatar.com/avatar/0dd29b77cc22abfe08994ecb1b80d26d?s=64&d=retro",
"ratings": {
"version": 5,
"overall": {
"rating": 888.1462361836036,
"deviation": 86.97050264540718,
"volatility": 0.060003765382195345
}
},
"ranking": 12.170838108355074,
"professional": false,
"ui_class": ""
},
"description": "What is this box for? Hey don’t read this! Only ten people can join.",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": 0,
"rules": "japanese",
"time_per_move": 15360,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": true,
"time_increment": 14400,
"initial_time": 86400,
"max_time": 86400
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 9120,
"name": "Tournaments(Create one every Monday)",
"summary": "",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 5,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": false,
"time_start": "2021-05-25T01:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2021-05-25T03:58:31.841658Z",
"ended": "2021-05-28T05:05:24.273573Z",
"start_waiting": "2021-05-25T03:58:31.553911Z",
"board_size": 19,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 4,
"ranked": true
},
{
"id": 58698,
"name": "Waldorf Kids April 9 test",
"director": {
"id": 679239,
"username": "letspanda",
"country": "un",
"icon": "https://user-uploads.online-go.com/557a83eec3e5c74d777c3bfdd85012a9-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1260.1793735802999,
"deviation": 66.01964612518762,
"volatility": 0.060010634516311515
}
},
"ranking": 20.270396668819913,
"professional": false,
"ui_class": ""
},
"description": "Tournament for the day",
"schedule": null,
"title": null,
"tournament_type": "roundrobin",
"handicap": -1,
"rules": "japanese",
"time_per_move": 40,
"time_control_parameters": {
"system": "byoyomi",
"time_control": "byoyomi",
"speed": "live",
"pause_on_weekends": false,
"main_time": 900,
"period_time": 30,
"periods": 5
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 5121,
"name": "Waldorf Kids Go Club",
"summary": "",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 7,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": false,
"time_start": "2020-04-08T19:49:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": true,
"exclusivity": "group",
"started": "2020-04-08T19:49:26.208374Z",
"ended": "2020-04-08T20:08:27.436669Z",
"start_waiting": "2020-04-08T19:49:26.029490Z",
"board_size": 19,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 2,
"ranked": true
},
{
"id": 85716,
"name": "Nd lancers cup",
"director": {
"id": 1116636,
"username": "NinjaDragon",
"country": "us",
"icon": "https://user-uploads.online-go.com/ed82330c80e1494373355e33c7739bd3-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1125.1190477207597,
"deviation": 118.65465042817122,
"volatility": 0.0599974652497051
}
},
"ranking": 17.64599181282169,
"professional": false,
"ui_class": ""
},
"description": "Come have fun and play with other strong players",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": 0,
"rules": "japanese",
"time_per_move": 89280,
"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": 11072,
"name": "Go Lancers",
"summary": "",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 3,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": false,
"time_start": "2022-02-04T17:44:00Z",
"players_start": 2,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2022-02-04T17:44:17.614505Z",
"ended": "2022-02-04T17:44:28.268161Z",
"start_waiting": "2022-02-04T17:44:17.452342Z",
"board_size": 9,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 2,
"ranked": true
},
{
"id": 88447,
"name": "1 -> 李梓揚 2 -> 蔡得恩",
"director": {
"id": 818416,
"username": "傳碁學園",
"country": "un",
"icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1898.3468207617877,
"deviation": 71.28817954667363,
"volatility": 0.06041644550084839
}
},
"ranking": 29.755630942351214,
"professional": false,
"ui_class": ""
},
"description": "1 -> 李梓揚\n2 -> 蔡得恩",
"schedule": null,
"title": null,
"tournament_type": "swiss",
"handicap": 0,
"rules": "japanese",
"time_per_move": 36,
"time_control_parameters": {
"system": "byoyomi",
"time_control": "byoyomi",
"speed": "live",
"pause_on_weekends": false,
"main_time": 600,
"period_time": 30,
"periods": 5
},
"is_open": true,
"exclude_provisional": false,
"group": {
"id": 7531,
"name": "傳碁 C班",
"summary": "",
"require_invitation": false,
"is_public": false,
"admin_only_tournaments": false,
"hide_details": true,
"member_count": 87,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": true,
"time_start": "2022-04-09T08:00:00Z",
"players_start": 2,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": false,
"exclusivity": "group",
"started": "2022-04-09T07:08:37.208663Z",
"ended": "2022-04-09T07:42:13.677978Z",
"start_waiting": "2022-04-09T07:08:37.158804Z",
"board_size": 19,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 2,
"ranked": true
}
]
}
