HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 58699,
"next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-is_open&page=16",
"previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-is_open&page=14",
"results": [
{
"id": 134055,
"name": "Correspondence 19x19 RoundRobin 2025-11-05 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 Site-wide Tournament",
"schedule": {
"id": 6,
"name": "Correspondence 19x19 RoundRobin",
"rrule": "DTSTART:20251216T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
"active": true,
"created": "2015-02-20T05:58:31.027016Z",
"last_run": "2025-12-16T19:01:03.601299Z",
"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": "2025-12-19T19:00:00Z",
"base_points": "10.0"
},
"title": null,
"tournament_type": "roundrobin",
"handicap": 0,
"rules": "japanese",
"time_per_move": 88451,
"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": "2025-11-05T19:00:32.234876Z",
"players_start": 4,
"first_pairing_method": "slaughter",
"subsequent_pairing_method": "slaughter",
"min_ranking": 0,
"max_ranking": 36,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2025-11-05T19:01:33.154506Z",
"ended": null,
"start_waiting": "2025-11-05T19:01:32.250188Z",
"board_size": 19,
"active_round": 1,
"icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
"player_count": 10,
"ranked": true
},
{
"id": 134051,
"name": "19x19 Open D.E. Cup #142",
"director": {
"id": 1015644,
"username": "wiadp1",
"country": "pl",
"icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1297.4839562114664,
"deviation": 72.53741246517602,
"volatility": 0.06014472613027313
}
},
"ranking": 20.94574930407428,
"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": 62,
"icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
},
"auto_start_on_max": true,
"time_start": "2025-11-09T22:05:00Z",
"players_start": 8,
"first_pairing_method": "random",
"subsequent_pairing_method": "random",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2025-11-09T12:14:59.589290Z",
"ended": null,
"start_waiting": "2025-11-09T12:14:59.493563Z",
"board_size": 19,
"active_round": 1,
"icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
"player_count": 8,
"ranked": true
},
{
"id": 134072,
"name": "World Star Monthly Match (November)",
"director": {
"id": 155306,
"username": "qingxiang96",
"country": "my",
"icon": "https://user-uploads.online-go.com/475df8480623aaab56b966dcc9d23760-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1678.8545282985813,
"deviation": 61.10338227081081,
"volatility": 0.05974945031184414
}
},
"ranking": 26.911151536138803,
"professional": false,
"ui_class": "supporter"
},
"description": "Hello everyone, Let’s have a friendly match within the members in this group!!! Everyone is welcome to join. Hope everyone will enjoy the joy of the game! Good luck.",
"schedule": null,
"title": null,
"tournament_type": "double_elimination",
"handicap": 0,
"rules": "japanese",
"time_per_move": 37,
"time_control_parameters": {
"system": "byoyomi",
"time_control": "byoyomi",
"speed": "live",
"pause_on_weekends": false,
"main_time": 900,
"period_time": 30,
"periods": 3
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 14930,
"name": "World Star Go Academy Group",
"summary": "“In Go, you are constantly making decisions that are either right or wrong.” — Yasunari Kawabata",
"require_invitation": false,
"is_public": false,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 45,
"icon": "https://user-uploads.online-go.com/d6848296c576899e38435f076f46e3b2-64.png"
},
"auto_start_on_max": false,
"time_start": "2025-11-22T11:00:00Z",
"players_start": 2,
"first_pairing_method": "random",
"subsequent_pairing_method": "slide",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": false,
"exclusivity": "group",
"started": "2025-11-22T11:00:08.137175Z",
"ended": "2025-11-22T14:33:42.793250Z",
"start_waiting": "2025-11-22T11:00:08.053557Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/d6848296c576899e38435f076f46e3b2-15.png",
"player_count": 7,
"ranked": true
},
{
"id": 132712,
"name": "HAPPY GO #120 Double Elimination",
"director": {
"id": 1220803,
"username": "nobhaete",
"country": "cn",
"icon": "https://user-uploads.online-go.com/1565c13b341c9b8bea6066bd85481ee6-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1874.478555325794,
"deviation": 72.8765287095199,
"volatility": 0.05983675551249
}
},
"ranking": 29.462716396094184,
"professional": false,
"ui_class": ""
},
"description": "Hi everyone, welcome and have FUN!\n\nPAUSE/ VACATION = DISQUALIFICATION! If your opponent pauses or has a vacation, or you have any question, please contact nobhaete.\n\nDouble elimination tournament every Sunday.",
"schedule": null,
"title": null,
"tournament_type": "double_elimination",
"handicap": 0,
"rules": "chinese",
"time_per_move": 43884,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": false,
"time_increment": 43200,
"initial_time": 86400,
"max_time": 172800
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 12619,
"name": "Happy Go!!!",
"summary": "Feel free to join and create tournaments！\nCreate tournaments = admin\n\nDouble Elimination tournaments every Sunday \nSingle Elimination tournaments every Thursday & Monday\n\nSimul McMahon tournaments first day of every month\n\nsdk and ddk on 1st of every tw",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 68,
"icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-64.png"
},
"auto_start_on_max": false,
"time_start": "2025-09-28T04:00:00Z",
"players_start": 4,
"first_pairing_method": "random",
"subsequent_pairing_method": "random",
"min_ranking": 5,
"max_ranking": 34,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2025-09-28T04:00:29.077211Z",
"ended": null,
"start_waiting": "2025-09-28T04:00:28.858492Z",
"board_size": 19,
"active_round": 3,
"icon": "https://user-uploads.online-go.com/6075a51acf2316ac03f5b309db5f3953-15.png",
"player_count": 16,
"ranked": true
},
{
"id": 134071,
"name": "Live 9x9 Double Elimination Tournament 2025-11-05 10:30",
"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": 2,
"name": "Live 9x9 Double Elimination Tournament",
"rrule": "DTSTART:20251217T060000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
"active": true,
"created": "2014-12-20T06:22:51.496184Z",
"last_run": "2025-12-17T06:01:00.359571Z",
"lead_time_seconds": 1800,
"tournament_type": "double_elimination",
"handicap": 0,
"rules": "japanese",
"size": 9,
"time_control_parameters": {
"time_control": "byoyomi",
"period_time": 30,
"main_time": 300,
"periods": 3
},
"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": "2025-12-17T10:00:00Z",
"base_points": "10.0"
},
"title": null,
"tournament_type": "double_elimination",
"handicap": 0,
"rules": "japanese",
"time_per_move": 41,
"time_control_parameters": {
"time_control": "byoyomi",
"period_time": 30,
"main_time": 300,
"periods": 3
},
"is_open": true,
"exclude_provisional": true,
"group": null,
"auto_start_on_max": false,
"time_start": "2025-11-05T10:30:32.020607Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slide",
"min_ranking": 0,
"max_ranking": 36,
"analysis_enabled": false,
"exclusivity": "open",
"started": "2025-11-05T10:31:32.100054Z",
"ended": "2025-11-05T11:12:35.839048Z",
"start_waiting": "2025-11-05T10:31:32.018708Z",
"board_size": 9,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
"player_count": 7,
"ranked": true
},
{
"id": 133794,
"name": "Think Different, Find a Game Changer_2nd Qualify Round",
"director": {
"id": 1776211,
"username": "MAESTRO of BADUK",
"country": "kr",
"icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1551.3129595394112,
"deviation": 64.78343519357017,
"volatility": 0.06002969826384871
}
},
"ranking": 25.082067965812985,
"professional": false,
"ui_class": ""
},
"description": "This is for players who want to play fast correspondence match \n\nTournament for DDK 25k ~ 11k\n\nStart time: 2 days\n\nFischer:: 6 hours\n\nMax. Time: 3 days\n*****\n2nd Q: registration\n\n1st Q: in progress\n*****\nDuplicate Participate Possible\n\nYou can join more than one qualifier without any problem. If you earn multiple spots in the main tournament, you’ll keep one seed, and the remaining one(s) will go to the next eligible player in the qualifier.\n\n*****\nQualify Round Participant:\nIf there are 16 or fewer players, the top two players will advance to the finals.\nAlso, If there are 16 to 32 players, the top 4 players will advance to the finals.\n\n*****\nThe winner and runner-up of the main event will be seeded and invited to the main tournament of Road to Dan.\n\n(We recommend you to be a member of this group to receive an invitation. According to the OGS system, we cannot send invitations to non-members. If you do not want to be, we could give tips. 1 For non-member, the winner and runner-up, we will send a personal message to invite the main tournament of Road to Dan. 2 Be a member of RS temporary when you need to get an invitation)\n\n*****\nPlease be careful below the rule;\n\nNO PAUSE & NO VACATION, anyone who takes on the vacation or pauses a game, will be disqualified.\n\nPlease send the tournament director a message if you find that your opponent pauses or turns vacation mode on.",
"schedule": null,
"title": null,
"tournament_type": "elimination",
"handicap": 0,
"rules": "japanese",
"time_per_move": 22626,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": false,
"time_increment": 21600,
"initial_time": 129600,
"max_time": 259200
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 15815,
"name": "RollingStones : Global & 한국인",
"summary": "한국인 대환영. 한국인과 글로벌 유저들을 위한 모임, We are connected all together.",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": true,
"hide_details": false,
"member_count": 39,
"icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-64.png"
},
"auto_start_on_max": true,
"time_start": "2025-11-06T17:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "random",
"min_ranking": 5,
"max_ranking": 19,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2025-11-06T16:10:04.724847Z",
"ended": null,
"start_waiting": "2025-11-06T16:10:04.254646Z",
"board_size": 19,
"active_round": 1,
"icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-15.png",
"player_count": 26,
"ranked": true
},
{
"id": 134066,
"name": "The Rumble of Stones",
"director": {
"id": 1776211,
"username": "MAESTRO of BADUK",
"country": "kr",
"icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1551.3129595394112,
"deviation": 64.78343519357017,
"volatility": 0.06002969826384871
}
},
"ranking": 25.082067965812985,
"professional": false,
"ui_class": ""
},
"description": "This is for players who want to play fast correspondence match \n\nDouble elimination for 15k ~ 5k\n\nStart time: 1 day + 12 hours\n\nFischer:: 6 hours\n\nMax. Time: 2 days\n\n*****\nPlease be careful below the rule;\n\nNO PAUSE & NO VACATION, anyone who takes on the vacation or pauses a game, will be disqualified.\n\nPlease send the tournament director a message if you find that your opponent pauses or turns vacation mode on.",
"schedule": null,
"title": null,
"tournament_type": "double_elimination",
"handicap": 0,
"rules": "chinese",
"time_per_move": 22626,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": true,
"time_increment": 21600,
"initial_time": 129600,
"max_time": 172800
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 15815,
"name": "RollingStones : Global & 한국인",
"summary": "한국인 대환영. 한국인과 글로벌 유저들을 위한 모임, We are connected all together.",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": true,
"hide_details": false,
"member_count": 39,
"icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-64.png"
},
"auto_start_on_max": true,
"time_start": "2025-11-12T18:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "random",
"min_ranking": 15,
"max_ranking": 25,
"analysis_enabled": false,
"exclusivity": "open",
"started": "2025-11-12T11:41:06.017686Z",
"ended": null,
"start_waiting": "2025-11-12T11:41:05.654203Z",
"board_size": 19,
"active_round": 1,
"icon": "https://user-uploads.online-go.com/2de231e0b190d65fe2d68b51bd7b4b2a-15.png",
"player_count": 32,
"ranked": true
},
{
"id": 135402,
"name": "Let's improve ourself! McMahon for 7k-25k [FAST] # II",
"director": {
"id": 1872546,
"username": "Sch-Mentor",
"country": "001",
"icon": "https://user-uploads.online-go.com/41804ae38abc71e0bea5040b313b01ec-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1500,
"deviation": 250,
"volatility": 0.06
}
},
"ranking": 24.303382182144386,
"professional": false,
"ui_class": "provisional"
},
"description": "Hi everyone!\nThis tournament would be useful for your improvement due to McMahon system because your games will be more evenly matched.\n\nThe number of rounds and the top bar could be modified in first round according to the total number of players and the population above the bar.\n\nFast tournament: pay attention, 12 hours increment is something like two movements per day.\n\nThings to keep in mind:\n* Use the conditional move feature to speed up the game.\n* No pauses and no vacations are allowed; if any player switch it on, then they will be disqualified without further notice or reminder (unless they have an urgent matter to attend to and give notice to TD).\n* Disqualification will occur automatically by the site if a player loses by timeout.\n* If you find that a player pauses the game, enters vacation mode or has bad behavior, please send a message to the TD.\n* And last but not least: no weekends; just make your move, it’s a tournament, my friend!",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": 0,
"rules": "japanese",
"time_per_move": 44568,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": false,
"time_increment": 43200,
"initial_time": 172800,
"max_time": 172800
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 508,
"name": "Fast Correspondence",
"summary": "Tournaments for people who like to play quick correspondence games.",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 802,
"icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
},
"auto_start_on_max": true,
"time_start": "2025-12-29T17:33:00Z",
"players_start": 16,
"first_pairing_method": "strength",
"subsequent_pairing_method": "strength",
"min_ranking": 5,
"max_ranking": 23,
"analysis_enabled": true,
"exclusivity": "open",
"started": null,
"ended": null,
"start_waiting": null,
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
"player_count": 7,
"ranked": true
},
{
"id": 134085,
"name": "9x9 Open D.E. Cup #203",
"director": {
"id": 1015644,
"username": "wiadp1",
"country": "pl",
"icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1297.4839562114664,
"deviation": 72.53741246517602,
"volatility": 0.06014472613027313
}
},
"ranking": 20.94574930407428,
"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/10842",
"schedule": null,
"title": null,
"tournament_type": "double_elimination",
"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": false,
"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": 686,
"icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
},
"auto_start_on_max": true,
"time_start": "2025-11-16T20:00:00Z",
"players_start": 8,
"first_pairing_method": "random",
"subsequent_pairing_method": "random",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2025-11-12T10:49:52.472054Z",
"ended": null,
"start_waiting": "2025-11-12T10:49:52.366032Z",
"board_size": 9,
"active_round": 1,
"icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
"player_count": 8,
"ranked": true
},
{
"id": 134107,
"name": "Bリーグ（8k-3k）",
"director": {
"id": 874208,
"username": "FUKO.S",
"country": "jp",
"icon": "https://user-uploads.online-go.com/aa170ff76e007cc7bc7a15709e85dbb8-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 2193.4210508169426,
"deviation": 69.5027559225844,
"volatility": 0.06003714737296537
}
},
"ranking": 33.10032061552835,
"professional": false,
"ui_class": "supporter"
},
"description": "リーグ開始時に参加されているメンバーでの総あたり戦になります。（レーティングによる自動ハンデ付き）\n\nIt will be a round-robin tournament with automatic handicapping based on ratings.",
"schedule": null,
"title": null,
"tournament_type": "roundrobin",
"handicap": -1,
"rules": "japanese",
"time_per_move": 9573,
"time_control_parameters": {
"system": "absolute",
"time_control": "absolute",
"speed": "correspondence",
"pause_on_weekends": false,
"total_time": 1209600
},
"is_open": true,
"exclude_provisional": false,
"group": {
"id": 7692,
"name": "Yushima Go Cafe （湯島囲碁喫茶）",
"summary": "This is a group exclusively for guests of Yushima Go Cafe and members of the Online Go Salon.\n湯島囲碁喫茶のゲスト＆オンライン囲碁サロンメンバー専用のグループです。",
"require_invitation": true,
"is_public": false,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 116,
"icon": "https://user-uploads.online-go.com/8246898de5c953274f7be81122b75b69-64.png"
},
"auto_start_on_max": false,
"time_start": "2025-11-14T10:00:00Z",
"players_start": 2,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 22,
"max_ranking": 27,
"analysis_enabled": true,
"exclusivity": "group",
"started": "2025-11-14T10:00:06.481014Z",
"ended": "2025-11-21T09:09:47.474327Z",
"start_waiting": "2025-11-14T10:00:06.458815Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/8246898de5c953274f7be81122b75b69-15.png",
"player_count": 2,
"ranked": true
}
]
}
