HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 58710,
"next": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=250",
"previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=248",
"results": [
{
"id": 15400,
"name": "Fujisawa Hosai (藤沢 朋斎) Birthday DDK Tournament",
"director": {
"id": 58836,
"username": "DrQuantum",
"country": "us",
"icon": "https://user-uploads.online-go.com/5192a63f12fa80c878392f9d0034612b-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1131.0990493828645,
"deviation": 64.62314186200068,
"volatility": 0.05898756218725846
}
},
"ranking": 17.768708107692138,
"professional": false,
"ui_class": ""
},
"description": "This tournament honors the birthday of Fujisawa Hosai (藤沢 朋斎) one of the first 9-dan professionals of the Nihon Ki-in, and who famously played two jubangos with Go Seigen in 1951 and 1952",
"schedule": null,
"title": null,
"tournament_type": "swiss",
"handicap": 0,
"rules": "japanese",
"time_per_move": 89280,
"time_control_parameters": {
"time_control": "fischer",
"initial_time": 259200,
"max_time": 604800,
"time_increment": 86400
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 24,
"name": "Double Digit Kyu Room",
"summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. ",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 3607,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": false,
"time_start": "2016-03-06T00:00:00Z",
"players_start": 8,
"first_pairing_method": "random",
"subsequent_pairing_method": "random",
"min_ranking": 0,
"max_ranking": 20,
"analysis_enabled": false,
"exclusivity": "open",
"started": "2016-03-21T01:54:52.810647Z",
"ended": "2016-11-14T06:40:03.272643Z",
"start_waiting": "2016-03-21T01:54:52.542574Z",
"board_size": 19,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 8,
"ranked": true
},
{
"id": 130165,
"name": "13x13 Mini League 10k-25k #16",
"director": {
"id": 1688153,
"username": "Mittelmark",
"country": "de",
"icon": "https://user-uploads.online-go.com/f86d53e1b08ba490783eac759518a835-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1157.4817444168732,
"deviation": 67.14133890971716,
"volatility": 0.060026346615081376
}
},
"ranking": 18.302476851445164,
"professional": false,
"ui_class": "supporter"
},
"description": "A little round robin with 4 games for everyone on a 13x13 board with (not too) relaxed time settings.",
"schedule": null,
"title": null,
"tournament_type": "roundrobin",
"handicap": 0,
"rules": "japanese",
"time_per_move": 93703,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": true,
"time_increment": 86400,
"initial_time": 432000,
"max_time": 1209600
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 161,
"name": "13x13",
"summary": "Like to play on a 13 x 13 board?",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 51,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": true,
"time_start": "2025-07-11T16:00:00Z",
"players_start": 5,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": false,
"exclusivity": "open",
"started": "2025-07-11T10:42:15.497963Z",
"ended": "2025-12-02T15:56:54.287739Z",
"start_waiting": "2025-07-11T10:42:15.137575Z",
"board_size": 13,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 5,
"ranked": true
},
{
"id": 62011,
"name": "CUARTO GRADO CUARTO GRADO",
"director": {
"id": 607938,
"username": "kido.go.baduk",
"country": "mx",
"icon": "https://user-uploads.online-go.com/83ceb7eea12991c2d610032107296fa7-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 702.7832420117375,
"deviation": 68.15986210019427,
"volatility": 0.06057660627238546
}
},
"ranking": 6.751703260465856,
"professional": false,
"ui_class": ""
},
"description": "JUGAR GO",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"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": 5581,
"name": "Colegio Serapio Rendón // Kinder - Primaria",
"summary": "",
"require_invitation": false,
"is_public": false,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 200,
"icon": "https://user-uploads.online-go.com/9da407b0f50ca68064ffbdfe7ee05885-64.png"
},
"auto_start_on_max": false,
"time_start": "2020-06-16T14:18:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "strength",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": false,
"exclusivity": "group",
"started": "2020-06-16T14:18:31.689748Z",
"ended": "2020-06-16T14:51:25.971485Z",
"start_waiting": "2020-06-16T14:18:30.726576Z",
"board_size": 9,
"active_round": null,
"icon": "https://user-uploads.online-go.com/9da407b0f50ca68064ffbdfe7ee05885-15.png",
"player_count": 8,
"ranked": true
},
{
"id": 113683,
"name": "9x9 Mini League 10k-25k #221",
"director": {
"id": 1015644,
"username": "wiadp1",
"country": "pl",
"icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1305.2721648368988,
"deviation": 72.65579160221056,
"volatility": 0.060142381755451196
}
},
"ranking": 21.08429287820258,
"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": "2024-03-17T20:00:00Z",
"players_start": 5,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2024-03-16T17:59:56.791366Z",
"ended": "2024-04-05T11:25:14.535165Z",
"start_waiting": "2024-03-16T17:59:56.444701Z",
"board_size": 9,
"active_round": null,
"icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
"player_count": 5,
"ranked": true
},
{
"id": 130904,
"name": "9x9 Mini League 10k-25k #318",
"director": {
"id": 1015644,
"username": "wiadp1",
"country": "pl",
"icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1305.2721648368988,
"deviation": 72.65579160221056,
"volatility": 0.060142381755451196
}
},
"ranking": 21.08429287820258,
"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": "2025-08-03T19:05:00Z",
"players_start": 5,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2025-08-01T09:54:00.602211Z",
"ended": "2025-08-13T14:03:53.088852Z",
"start_waiting": "2025-08-01T09:54:00.439675Z",
"board_size": 9,
"active_round": null,
"icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
"player_count": 5,
"ranked": true
},
{
"id": 134489,
"name": "13x13 Mini League 10k-25k #34",
"director": {
"id": 1688153,
"username": "Mittelmark",
"country": "de",
"icon": "https://user-uploads.online-go.com/f86d53e1b08ba490783eac759518a835-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1157.4817444168732,
"deviation": 67.14133890971716,
"volatility": 0.060026346615081376
}
},
"ranking": 18.302476851445164,
"professional": false,
"ui_class": "supporter"
},
"description": "A little round robin with 4 games for everyone on a 13x13 board with (not too) relaxed time settings.",
"schedule": null,
"title": null,
"tournament_type": "roundrobin",
"handicap": 0,
"rules": "japanese",
"time_per_move": 93703,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": true,
"time_increment": 86400,
"initial_time": 432000,
"max_time": 1209600
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 161,
"name": "13x13",
"summary": "Like to play on a 13 x 13 board?",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 51,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": true,
"time_start": "2025-11-21T21:00:00Z",
"players_start": 5,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": false,
"exclusivity": "open",
"started": "2025-11-20T14:13:15.988161Z",
"ended": null,
"start_waiting": "2025-11-20T14:13:15.802322Z",
"board_size": 13,
"active_round": 1,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 5,
"ranked": true
},
{
"id": 109506,
"name": "9x9 Mini League 10k-25k #193",
"director": {
"id": 1015644,
"username": "wiadp1",
"country": "pl",
"icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1305.2721648368988,
"deviation": 72.65579160221056,
"volatility": 0.060142381755451196
}
},
"ranking": 21.08429287820258,
"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": "2023-11-19T20:00:00Z",
"players_start": 5,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2023-11-16T15:25:30.595774Z",
"ended": "2023-12-16T18:58:42.274152Z",
"start_waiting": "2023-11-16T15:25:30.433776Z",
"board_size": 9,
"active_round": null,
"icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
"player_count": 5,
"ranked": true
},
{
"id": 7373,
"name": "1st of June DDK Monthly Tournament (Testing Phase)",
"director": {
"id": 150769,
"username": "deleted-3238627f-e757-44b4-a464-6ce17a3ea53c",
"country": "my",
"icon": "https://secure.gravatar.com/avatar/74456719f0f4147b55551974a0320474?s=64&d=retro",
"ratings": {
"version": 5,
"overall": {
"rating": 1304.3557851784537,
"deviation": 61.22277668841308,
"volatility": 0.059984725906123984
}
},
"ranking": 21.068034476337406,
"professional": false,
"ui_class": ""
},
"description": "Aims:\n1. To bring players of equivalent strength together for practice games, rather than obtaining the strongest player as in regular tournaments.\n2. Similar concept to rank promotion through tournaments or ranking exams.\n\nMethods:\n1. The use of McMahon system helps to minimise strength difference, i.e. win-loss is considered despite the presence of ranking system.\n2. Handicap is enabled in case that a strong player is paired with a weaker player.\n3. (Improvement suggestions are welcomed)\n\n\n* Absolute timing is used to ensure the tournament progress. The time of both players adds up to a maximum of 1 week.\n\n\n# Time setting has been modified. Interested players please rejoin. Sorry for the inconvenience.",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": -1,
"rules": "japanese",
"time_per_move": 3360,
"time_control_parameters": {
"total_time": 302400,
"time_control": "absolute"
},
"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": 17637,
"icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
},
"auto_start_on_max": false,
"time_start": "2015-05-31T16:00:00Z",
"players_start": 10,
"first_pairing_method": "strength",
"subsequent_pairing_method": "strength",
"min_ranking": 11,
"max_ranking": 20,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2015-05-31T16:00:17.199133Z",
"ended": "2015-06-29T04:03:41.665263Z",
"start_waiting": "2015-05-31T16:00:16.668462Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
"player_count": 27,
"ranked": true
},
{
"id": 68398,
"name": "Christmas~~",
"director": {
"id": 854377,
"username": "P6A26",
"country": "hk",
"icon": "https://user-uploads.online-go.com/4447322d8f12cad083f062e5b9c11bab-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1097.431394508065,
"deviation": 65.22875293950527,
"volatility": 0.059992788967371175
}
},
"ranking": 17.069174908671343,
"professional": false,
"ui_class": ""
},
"description": "It’s Christmas \n~~",
"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": 5925,
"name": "Group for GO",
"summary": "Don't have a group? No problem, just join this group!",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": true,
"member_count": 71,
"icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-64.png"
},
"auto_start_on_max": false,
"time_start": "2020-12-24T23:00:00Z",
"players_start": 4,
"first_pairing_method": "strength",
"subsequent_pairing_method": "strength",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2020-12-24T23:00:56.536141Z",
"ended": "2021-12-29T22:27:32.131230Z",
"start_waiting": "2020-12-24T23:00:54.909107Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-15.png",
"player_count": 46,
"ranked": true
},
{
"id": 57168,
"name": "STONES Battle April 2020",
"director": {
"id": 735737,
"username": "Ragnungar",
"country": "_Pirate",
"icon": "https://user-uploads.online-go.com/647be367d46d0bd0790f10af18082d82-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1390.6817300615635,
"deviation": 61.54187292528182,
"volatility": 0.060028961076769916
}
},
"ranking": 22.55159788587131,
"professional": false,
"ui_class": ""
},
"description": "The time of battle has come!",
"schedule": null,
"title": null,
"tournament_type": "swiss",
"handicap": 0,
"rules": "japanese",
"time_per_move": 87840,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": true,
"time_increment": 86400,
"initial_time": 129600,
"max_time": 432000
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 4495,
"name": "STONES",
"summary": "",
"require_invitation": true,
"is_public": false,
"admin_only_tournaments": false,
"hide_details": true,
"member_count": 0,
"icon": "https://user-uploads.online-go.com/9f43f6b228b1cde1bb33933e32e903de-64.png"
},
"auto_start_on_max": true,
"time_start": "2020-04-06T01:00:00Z",
"players_start": 8,
"first_pairing_method": "strength",
"subsequent_pairing_method": "strength",
"min_ranking": 5,
"max_ranking": 20,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2020-03-31T09:45:23.520314Z",
"ended": "2021-07-19T15:00:55.858300Z",
"start_waiting": "2020-03-31T09:45:22.602323Z",
"board_size": 13,
"active_round": null,
"icon": "https://user-uploads.online-go.com/9f43f6b228b1cde1bb33933e32e903de-15.png",
"player_count": 16,
"ranked": true
}
]
}
