HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept
{
"count": 58283,
"next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=name&page=4876",
"previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=name&page=4874",
"results": [
{
"id": 130154,
"name": "long again",
"director": {
"id": 1805125,
"username": "111189",
"country": "kr",
"icon": "https://user-uploads.online-go.com/032de672f5fb3088290d7eccb85077e7-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 648.7942380599856,
"deviation": 63.12095755732813,
"volatility": 0.0600365821627776
}
},
"ranking": 5,
"professional": false,
"ui_class": ""
},
"description": "no up level30",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"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": 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": 17539,
"icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
},
"auto_start_on_max": false,
"time_start": "2025-07-05T01:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": null,
"ended": null,
"start_waiting": null,
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
"player_count": 1
},
{
"id": 115022,
"name": "Long & Boring tourney.",
"director": {
"id": 1144866,
"username": "𝗣𝘂𝘁 𝗞.",
"country": "001",
"icon": "https://user-uploads.online-go.com/96e71b19d93c156edd85ce7fe2904c51-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1085.6670298335894,
"deviation": 67.57319563239793,
"volatility": 0.06054300501627142
}
},
"ranking": 16.819669274399253,
"professional": false,
"ui_class": ""
},
"description": "<link rel=\"stylesheet\" type=\"text/css\" href=\"https://yewang.github.io/ProfileCSS/profile.css \"> <link rel=\"stylesheet\" type=\"text/css\"\n\nPlease join even though you're not bored.\n\nBored players from these countries have visited this tourney:\n\n<a href=\"https://info.flagcounter.com/IZWl\"><img src=\"https://s11.flagcounter.com/map/IZWl/size_l/txt_000000/border_F7FF00/pageviews_1/viewers_Bored+Guys/flags_0/\" alt=\"Flag Counter\" border=\"0\"></a>",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": 0,
"rules": "japanese",
"time_per_move": 604800,
"time_control_parameters": {
"system": "simple",
"time_control": "simple",
"speed": "correspondence",
"pause_on_weekends": true,
"per_move": 604800
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 13972,
"name": " All Game Lovers ",
"summary": "A space for \"All Games Lovers!\"",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 56,
"icon": "https://user-uploads.online-go.com/dc4b9333339c5a29353686ab5290b5e6-64.png"
},
"auto_start_on_max": false,
"time_start": "2024-12-01T07:00:00Z",
"players_start": 10,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2024-12-01T07:00:30.982522Z",
"ended": null,
"start_waiting": "2024-12-01T07:00:30.530227Z",
"board_size": 19,
"active_round": 2,
"icon": "https://user-uploads.online-go.com/dc4b9333339c5a29353686ab5290b5e6-15.png",
"player_count": 34
},
{
"id": 77029,
"name": "Long correspondence",
"director": {
"id": 1006991,
"username": "WillMa",
"country": "cn",
"icon": "https://secure.gravatar.com/avatar/3b854740fb42fc74c8b43503d4f64f46?s=64&d=retro",
"ratings": {
"version": 5,
"overall": {
"rating": 1425.3905788313666,
"deviation": 65.04358839826483,
"volatility": 0.06003849668312953
}
},
"ranking": 23.12228674059785,
"professional": false,
"ui_class": ""
},
"description": "Good luck",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": 0,
"rules": "aga",
"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": true,
"group": {
"id": 9509,
"name": "Goggle",
"summary": "",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 14,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": false,
"time_start": "2021-07-13T08:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2021-07-11T00:55:34.105262Z",
"ended": "2021-11-06T11:34:59.289724Z",
"start_waiting": "2021-07-11T00:55:33.956593Z",
"board_size": 19,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 9
},
{
"id": 76485,
"name": "Long Correspondence",
"director": {
"id": 1006991,
"username": "WillMa",
"country": "cn",
"icon": "https://secure.gravatar.com/avatar/3b854740fb42fc74c8b43503d4f64f46?s=64&d=retro",
"ratings": {
"version": 5,
"overall": {
"rating": 1425.3905788313666,
"deviation": 65.04358839826483,
"volatility": 0.06003849668312953
}
},
"ranking": 23.12228674059785,
"professional": false,
"ui_class": ""
},
"description": "Long correspondence",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": -1,
"rules": "japanese",
"time_per_move": 631680,
"time_control_parameters": {
"system": "fischer",
"time_control": "fischer",
"speed": "correspondence",
"pause_on_weekends": true,
"time_increment": 604800,
"initial_time": 2419200,
"max_time": 2419200
},
"is_open": true,
"exclude_provisional": false,
"group": {
"id": 43,
"name": "Kyu Level Study Group",
"summary": "A group for kyu level players! Join, play tournaments, and have fun. Thanks for being a part of our community!",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 8765,
"icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
},
"auto_start_on_max": true,
"time_start": "2021-06-19T00:00:00Z",
"players_start": 2,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2021-06-19T07:30:09.093746Z",
"ended": "2021-06-21T03:47:19.533856Z",
"start_waiting": "2021-06-19T07:30:09.026693Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
"player_count": 2
},
{
"id": 104336,
"name": "long do",
"director": {
"id": 1357916,
"username": "jokede",
"country": "un",
"icon": "https://user-uploads.online-go.com/d1847d8bcce5d60dadedcf2e7abfffef-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 927.6866034276233,
"deviation": 70.25701830305113,
"volatility": 0.06002923977095743
}
},
"ranking": 13.179195485868561,
"professional": false,
"ui_class": ""
},
"description": "ลองดู",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": 0,
"rules": "japanese",
"time_per_move": 90782,
"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": 12520,
"name": "CPMX-GO",
"summary": "",
"require_invitation": true,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": true,
"member_count": 561,
"icon": "https://user-uploads.online-go.com/0de86490f0f034d98916724e2debd074-64.png"
},
"auto_start_on_max": false,
"time_start": "2023-06-15T08:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2025-09-19T17:40:08.668960Z",
"ended": null,
"start_waiting": "2025-09-19T17:40:08.578763Z",
"board_size": 13,
"active_round": 2,
"icon": "https://user-uploads.online-go.com/0de86490f0f034d98916724e2debd074-15.png",
"player_count": 4
},
{
"id": 120369,
"name": "Longest time to wait for a tournament",
"director": {
"id": 1606495,
"username": "Madara Uchiha",
"country": "sg",
"icon": "https://user-uploads.online-go.com/8eec8f0c775a4648b9b2bbcc7712eaf5-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1254.5247369993929,
"deviation": 71.56514087746773,
"volatility": 0.06002016894426035
}
},
"ranking": 20.166284970802867,
"professional": false,
"ui_class": ""
},
"description": "So long a few thousand years later",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"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": true,
"group": {
"id": 3,
"name": "OGS",
"summary": "An open group for folks' who like OGS!",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 1769,
"icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png"
},
"auto_start_on_max": false,
"time_start": "8000-02-11T08:00:00Z",
"players_start": 4,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": null,
"ended": null,
"start_waiting": null,
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png",
"player_count": 5
},
{
"id": 59580,
"name": "Longest tournament possible",
"director": {
"id": 760687,
"username": "HHG",
"country": "_United_Federation_of_Planets",
"icon": "https://secure.gravatar.com/avatar/94b05df11403a71a7a364ac616a2b643?s=64&d=retro",
"ratings": {
"version": 5,
"overall": {
"rating": 1371.2634638577877,
"deviation": 64.34776638407621,
"volatility": 0.06015708590051567
}
},
"ranking": 22.22607349050463,
"professional": false,
"ui_class": ""
},
"description": "The longest tournament possible is one which a) takes the longest time possible per round, and b) has the most rounds per player. \n\nByo-Yomi is best for maximising time per round (yes, I know I spelled that wrong, but I can't be bothered to correct it!). It is better than Absolute because (duh! I shouldn't have to explain this, but it's main time is equal to the Absolute timing's maximum time). It is better than Simple because it is basically simple but with more periods. It is better than Fischer, because, when pushed to the limit, Fischer is equal to Simple plus Absolute. However, Byo-Yomi is Simple * 300 (I code, so I like *, instead of x) + Absolute, which is better than Fischer. Canadian, when pushed to it's limits, is basically a worse version of Fischer. Also, you should use a 19x19 board.\n\nTo maximise (spelled it wrong again! :)) tournament rounds, Double Elimination is best, for it gives (optimally) log 2 of player number * 2 rounds. However, it is only better than McMahon for 64 or more rounds, as for less than 64, log 2 64 or less times 2 is less than 12 rounds, which is the round number you can have for any number of players.\n\n(BTW, if you exclude superko, the game can go on forever! Including superko, the lower bound is 10^48 (10^170 board positions, but not all can be cycled through! https://senseis.xmp.net/?NumberOfPossibleGoGames))",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": 0,
"rules": "japanese",
"time_per_move": 2446080,
"time_control_parameters": {
"system": "byoyomi",
"time_control": "byoyomi",
"speed": "correspondence",
"pause_on_weekends": true,
"main_time": 2419200,
"period_time": 2419200,
"periods": 300
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 5391,
"name": "Sup People",
"summary": "",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 19,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
},
"auto_start_on_max": false,
"time_start": "2026-01-01T02:00:00Z",
"players_start": 1000,
"first_pairing_method": "slide",
"subsequent_pairing_method": "slaughter",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": true,
"exclusivity": "open",
"started": null,
"ended": null,
"start_waiting": null,
"board_size": 19,
"active_round": null,
"icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
"player_count": 200
},
{
"id": 101337,
"name": "longest tournement ever",
"director": {
"id": 740801,
"username": "qquasar",
"country": "un",
"icon": "https://user-uploads.online-go.com/f7aac7e12440233e1e13e4d9ea493a84-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1667.8647969428284,
"deviation": 62.183231411820536,
"volatility": 0.060159296524181546
}
},
"ranking": 26.759114170228365,
"professional": false,
"ui_class": ""
},
"description": "anyone can join",
"schedule": null,
"title": null,
"tournament_type": "mcmahon",
"handicap": -1,
"rules": "japanese",
"time_per_move": 2438347,
"time_control_parameters": {
"system": "byoyomi",
"time_control": "byoyomi",
"speed": "correspondence",
"pause_on_weekends": true,
"main_time": 2419200,
"period_time": 2419200,
"periods": 300
},
"is_open": true,
"exclude_provisional": false,
"group": {
"id": 6630,
"name": "Go friends 🐬",
"summary": "",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 358,
"icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-64.png"
},
"auto_start_on_max": true,
"time_start": "2023-11-15T10:30:00Z",
"players_start": 4,
"first_pairing_method": "strength",
"subsequent_pairing_method": "strength",
"min_ranking": 5,
"max_ranking": 38,
"analysis_enabled": false,
"exclusivity": "open",
"started": "2023-11-11T16:54:59.867075Z",
"ended": null,
"start_waiting": "2023-11-11T16:54:58.457040Z",
"board_size": 19,
"active_round": 1,
"icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-15.png",
"player_count": 50
},
{
"id": 11323,
"name": "long fair with handicap",
"director": {
"id": 114073,
"username": "elma.218",
"country": "tr",
"icon": "https://user-uploads.online-go.com/c451275c8b10a1d6c4052257d70c3cd1-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1787.7450440536031,
"deviation": 64.86830524553237,
"volatility": 0.05997042542835535
}
},
"ranking": 28.365974887281094,
"professional": false,
"ui_class": ""
},
"description": "long-its fair",
"schedule": null,
"title": null,
"tournament_type": "swiss",
"handicap": -1,
"rules": "japanese",
"time_per_move": 265920,
"time_control_parameters": {
"time_control": "fischer",
"initial_time": 604800,
"max_time": 604800,
"time_increment": 259200
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 447,
"name": "turkey go players team",
"summary": "Kader Oyunu (the game of destiny)",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 165,
"icon": "https://user-uploads.online-go.com/39a22b3e039c1dfce80ceebe3004d6ac-64.png"
},
"auto_start_on_max": true,
"time_start": "2015-10-08T20:08:00Z",
"players_start": 6,
"first_pairing_method": "strength",
"subsequent_pairing_method": "strength",
"min_ranking": 10,
"max_ranking": 29,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2015-10-11T10:55:41.754125Z",
"ended": "2016-07-01T14:28:49.569086Z",
"start_waiting": "2015-10-11T10:55:41.597915Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/39a22b3e039c1dfce80ceebe3004d6ac-15.png",
"player_count": 6
},
{
"id": 11324,
"name": "long fair with handicap",
"director": {
"id": 114073,
"username": "elma.218",
"country": "tr",
"icon": "https://user-uploads.online-go.com/c451275c8b10a1d6c4052257d70c3cd1-64.png",
"ratings": {
"version": 5,
"overall": {
"rating": 1787.7450440536031,
"deviation": 64.86830524553237,
"volatility": 0.05997042542835535
}
},
"ranking": 28.365974887281094,
"professional": false,
"ui_class": ""
},
"description": "long-its fair",
"schedule": null,
"title": null,
"tournament_type": "swiss",
"handicap": -1,
"rules": "japanese",
"time_per_move": 265920,
"time_control_parameters": {
"time_control": "fischer",
"initial_time": 604800,
"max_time": 604800,
"time_increment": 259200
},
"is_open": true,
"exclude_provisional": true,
"group": {
"id": 447,
"name": "turkey go players team",
"summary": "Kader Oyunu (the game of destiny)",
"require_invitation": false,
"is_public": true,
"admin_only_tournaments": false,
"hide_details": false,
"member_count": 165,
"icon": "https://user-uploads.online-go.com/39a22b3e039c1dfce80ceebe3004d6ac-64.png"
},
"auto_start_on_max": true,
"time_start": "2015-10-08T20:08:00Z",
"players_start": 6,
"first_pairing_method": "strength",
"subsequent_pairing_method": "strength",
"min_ranking": 10,
"max_ranking": 29,
"analysis_enabled": true,
"exclusivity": "open",
"started": "2015-10-15T04:45:31.091520Z",
"ended": "2016-09-09T20:34:31.645373Z",
"start_waiting": "2015-10-15T04:45:30.946558Z",
"board_size": 19,
"active_round": null,
"icon": "https://user-uploads.online-go.com/39a22b3e039c1dfce80ceebe3004d6ac-15.png",
"player_count": 6
}
]
}
