List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=450
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60155,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=451",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=449",
    "results": [
        {
            "id": 111758,
            "name": "Round 2: Mark vs Adam",
            "director": {
                "id": 1460501,
                "username": "caitnichols",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/2d45010ae3a796549255f365b1a4bb11?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Round 2: Mark vs Adam",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 34,
            "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": false,
            "group": {
                "id": 13777,
                "name": "CSL Go 2",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "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": "2024-01-16T18:05:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2024-01-16T18:05:24.239508Z",
            "ended": "2024-01-16T18:16:52.248175Z",
            "start_waiting": "2024-01-16T18:05:24.175468Z",
            "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": 57678,
            "name": "ultimoo",
            "director": {
                "id": 147829,
                "username": "Tatesin92",
                "country": "cl",
                "icon": "https://user-uploads.online-go.com/bf41575a38c9790e1a8e663270f8b161-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1953.2308626916224,
                        "deviation": 63.22533927234755,
                        "volatility": 0.05996858706445684
                    }
                },
                "ranking": 30.415439303519424,
                "professional": false,
                "ui_class": ""
            },
            "description": "ultimoo",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 50,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1800,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 615,
                "name": "Club Tengen de Go",
                "summary": "Club Tengen de Go - Santiago de Chile.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 57,
                "icon": "https://user-uploads.online-go.com/c0c2c23245db015378d5dbd05a8ef4bf-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-03-19T02:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-03-19T02:00:23.295172Z",
            "ended": "2020-03-19T02:02:37.539496Z",
            "start_waiting": "2020-03-19T02:00:22.744036Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/c0c2c23245db015378d5dbd05a8ef4bf-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 81666,
            "name": "🌸81 Flowers🌸 #27",
            "director": {
                "id": 126739,
                "username": "🐬Sofiam🐬",
                "country": "_Olimpic_Movement",
                "icon": "https://user-uploads.online-go.com/3448d55b1fa874861bc9029bd534f998-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1012.0554496406809,
                        "deviation": 84.91308607572303,
                        "volatility": 0.076882078105041
                    }
                },
                "ranking": 15.194279748149173,
                "professional": false,
                "ui_class": ""
            },
            "description": "🌸🌸🌸Everyone is welcome🌸🌸🌸",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 2419200,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 2419200
            },
            "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": 362,
                "icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-10-27T08:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-10-27T08:00:51.116674Z",
            "ended": "2022-01-05T21:42:57.772176Z",
            "start_waiting": "2021-10-27T08:00:50.683316Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 29413,
            "name": "Julko's mini-tournament XVII",
            "director": {
                "id": 15530,
                "username": "Julko",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/71fa797ba41fd26c92f7ed5fda17613a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 872.4358271776667,
                        "deviation": 67.16931578364454,
                        "volatility": 0.05926939074897978
                    }
                },
                "ranking": 11.757672905887626,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Just play Go",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 91200,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": true,
                "time_control": "fischer",
                "initial_time": 432000,
                "max_time": 604800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2017-09-05T03:05:00Z",
            "players_start": 8,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2017-08-26T12:25:24.373890Z",
            "ended": "2018-01-20T10:48:46.306113Z",
            "start_waiting": "2017-08-26T12:25:21.350806Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 132164,
            "name": "Handicap Arena 2025 - 074",
            "director": {
                "id": 526987,
                "username": "Gia",
                "country": "gr",
                "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1058.5711110050659,
                        "deviation": 64.29784525682551,
                        "volatility": 0.060068189781232774
                    }
                },
                "ranking": 16.23456270389972,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Part of an arena tournament. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as there are 5 players.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "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": 13655,
                "name": "Handicap Arena",
                "summary": "Organising arena-type handicap correspondence tournaments.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 108,
                "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-09-08T19:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-09-08T00:09:52.548128Z",
            "ended": "2025-12-29T20:35:20.717386Z",
            "start_waiting": "2025-09-08T00:09:52.369599Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 33696,
            "name": "Primer Torneo Uruguayo de Go por Internet 2018",
            "director": {
                "id": 198773,
                "username": "achecopar",
                "country": "uy",
                "icon": "https://user-uploads.online-go.com/d6faf6cdbfe14324cbb65ddd4aa7f73c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1321.2151346557714,
                        "deviation": 65.13293401392431,
                        "volatility": 0.060269345399741214
                    }
                },
                "ranking": 21.36534071307291,
                "professional": false,
                "ui_class": ""
            },
            "description": "Este torneo es completamente libre, sin importar niveles ni habilidad. La idea es jugar y divertirse, y especialmente, conocer y poder charlar con los uruguayos que, ya sea porque viven lejos o por falta de tiempo, no pueden juntarse a jugar en persona con nosotros los jueves.\n\nLa fecha de comienzo es el 15 de febrero, para después de Carnaval. La idea es que cada ronda dure menos de dos semanas por partida. \n\nSe ofrece la modalidad de correspondencia, pero la idea es que no se extiendan demasiado.\n\nSe solicita colaboración para esto, que los contrincantes conversen entre ellos y coordinen una fecha y una hora que les quede bien para jugar la partida, dentro de las dos semanas. También se puede intentar terminarla en dos semanas jugando por correspondencia normal, pero esto requiere que los dos jugadores estén haciendo varias jugadas por día todos los días y corre el riesgo de que no alcance el tiempo. \n\nAsí que, como se ve, no es un torneo formal, tiene flexibilidad horaria, y la idea es conocerse, jugar, aprender y divertirse. Son todos bienvenidos, anímense!\n\n\nNota: Las partidas de la primera ronda deben estar terminadas para el 1ro de marzo. Si para entonces alguna pareja aún no terminó, se le concederá la victoria al jugador que quede con más tiempo disponible en la partida.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88320,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": true,
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 172800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 468,
                "name": "Go Uruguay",
                "summary": "Grupo para jugadores de Go uruguayos.",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 72,
                "icon": "https://user-uploads.online-go.com/df1bd4bdd793813ac3636cd2f8e41d85-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-02-15T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2018-02-15T04:00:05.255953Z",
            "ended": "2018-06-20T20:14:11.946310Z",
            "start_waiting": "2018-02-15T04:00:04.415125Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/df1bd4bdd793813ac3636cd2f8e41d85-15.png",
            "player_count": 21,
            "ranked": true
        },
        {
            "id": 89660,
            "name": "Bots vs Humans 202205271500",
            "director": {
                "id": 1031342,
                "username": "NewHand_Bot",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/231a943c0a9781902371549b12a05456?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1975.6918383935774,
                        "deviation": 67.62205433700483,
                        "volatility": 0.06021274884977886
                    }
                },
                "ranking": 30.680131328159977,
                "professional": false,
                "ui_class": "bot"
            },
            "description": "This tournament allows Bot accounts to participate.\n\nPlayers of any rank are welcome.\n\nNo pause on weekends.",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 17280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 259200,
                "max_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6332,
                "name": "noob_bot",
                "summary": "Play with bots",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 884,
                "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-05-27T07:00:00Z",
            "players_start": 5,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-05-27T07:00:45.124329Z",
            "ended": "2022-09-23T13:57:59.274168Z",
            "start_waiting": "2022-05-27T07:00:44.609427Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-15.png",
            "player_count": 11,
            "ranked": true
        },
        {
            "id": 95608,
            "name": "Weekly 19x19 Games 2022-10-14",
            "director": {
                "id": 741522,
                "username": "wolfmeister",
                "country": "_United_Federation_of_Planets",
                "icon": "https://secure.gravatar.com/avatar/c86451e4f5aaface6118117b8b91597b?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1209.6169056480942,
                        "deviation": 65.52079638031556,
                        "volatility": 0.06013235595814508
                    }
                },
                "ranking": 19.32239564406787,
                "professional": false,
                "ui_class": ""
            },
            "description": "%%%%%%%%%%%%%%%%%%%%%%%%\n\n!!!LIVE GAME APPOINTMENTS ARE NOT SCHEDULED AUTOMATICALLY!!!\n\nONCE TOURNAMENT STARTS:\n\nCOME BACK HERE TO FIND YOUR ASSIGNED OPPONENT ARRANGE A >30min VIDEO CONFERENCE WITH YOUR OPPONENT FINISH YOUR GAME WITHIN ONE WEEK, TO PREVENT BLOCKING THE TOURNAMENT. EACH MONDAY, SCHEDULE YOUR NEXT MATCH VIDEO CONFERENCE. %%%%%%%%%%%%%%%%%%%%%%%%",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 20160,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 1814400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 6518,
                "name": "Madison Google Go",
                "summary": "Nominally a social league for the MSN site, but friendly, casual players from other sites welcome.  Make sure to join the Hangouts room, go-msn@ group for announcements!  Please send an *INTERNAL* email to the organizers to join.  We don't always notice OG",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 18,
                "icon": "https://user-uploads.online-go.com/58487116e0e161b5d171c5b31268b059-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-10-14T21:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-10-14T21:00:23.774046Z",
            "ended": "2023-03-06T22:18:29.472959Z",
            "start_waiting": "2022-10-14T21:00:23.609892Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/58487116e0e161b5d171c5b31268b059-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 111553,
            "name": "Январский круговик Гудзуми 2024",
            "director": {
                "id": 1055025,
                "username": "Sviatopolk",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/28d0d3d94004a0556b2164ff794ab445-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1793.1500840266808,
                        "deviation": 62.863088480725956,
                        "volatility": 0.059928845525619744
                    }
                },
                "ranking": 28.435860637032242,
                "professional": false,
                "ui_class": ""
            },
            "description": "Партии играются одновременно каждый с каждым. Начальное время 3 дня. Каждый ход добавляет 1 день вплоть до максимума 3 дня. Игра без форы, ограничений по разряду нет.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 3922,
                "name": "Гудзуми-Юсей",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 107,
                "icon": "https://user-uploads.online-go.com/d9805b8d0e97919dd033d6a28e59afa4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-01-15T06:00:00Z",
            "players_start": 6,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2024-01-14T14:45:53.489485Z",
            "ended": "2024-04-28T07:20:29.731010Z",
            "start_waiting": "2024-01-14T14:45:52.816741Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/d9805b8d0e97919dd033d6a28e59afa4-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 111653,
            "name": "19x19 Open League #43",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1324.0959462703095,
                        "deviation": 69.99372712007725,
                        "volatility": 0.06023788322736291
                    }
                },
                "ranking": 21.41576262051663,
                "professional": false,
                "ui_class": ""
            },
            "description": "Open league for everyone. Tournament will be started as soon as 10 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "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": 79,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-01-28T22:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-01-23T03:00:01.434935Z",
            "ended": "2024-03-31T19:45:55.950714Z",
            "start_waiting": "2024-01-23T03:00:00.603251Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 10,
            "ranked": true
        }
    ]
}