List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=677
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59237,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=678",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=676",
    "results": [
        {
            "id": 67282,
            "name": "Halloween Tournament!",
            "director": {
                "id": 535250,
                "username": "andyzhou",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/105954f48a899e137f853a65860f7c7b?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1820.4275132122218,
                        "deviation": 66.8021983755448,
                        "volatility": 0.06012765379863539
                    }
                },
                "ranking": 28.78536716517323,
                "professional": false,
                "ui_class": ""
            },
            "description": "Halloween Tournament!",
            "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": 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": 3651,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-10-31T23:00:00Z",
            "players_start": 2,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-11-15T15:55:27.390729Z",
            "ended": "2020-11-15T16:28:06.441638Z",
            "start_waiting": "2020-11-15T15:55:27.245932Z",
            "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": 116483,
            "name": "ทดสอบแข่งขัน M3/3",
            "director": {
                "id": 779033,
                "username": "T.Boss Chanatip",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/b48d7002f7cfe5a5b7dbf304aa99b403-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2035.3577057312855,
                        "deviation": 73.07838554282719,
                        "volatility": 0.06006497874786784
                    }
                },
                "ranking": 31.368912011527872,
                "professional": false,
                "ui_class": ""
            },
            "description": "ทดสอบบบ",
            "schedule": null,
            "title": null,
            "tournament_type": "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": false,
            "group": {
                "id": 13760,
                "name": "Satit PIM M1-M3 Class T.Boss",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 856,
                "icon": "https://user-uploads.online-go.com/01bddb523006f2ecdc9fc4c2a6c4172b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-05-27T04:17:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2024-05-27T04:17:53.133014Z",
            "ended": "2024-05-27T05:41:27.974214Z",
            "start_waiting": "2024-05-27T04:17:52.929466Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/01bddb523006f2ecdc9fc4c2a6c4172b-15.png",
            "player_count": 24,
            "ranked": true
        },
        {
            "id": 66037,
            "name": "한국인 화늉",
            "director": {
                "id": 831306,
                "username": "상어고양이 아빠",
                "country": "kr",
                "icon": "https://user-uploads.online-go.com/db60d9f14079d08540de384240548fd3-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1379.3147955484346,
                        "deviation": 65.91437466412411,
                        "volatility": 0.060013537153480276
                    }
                },
                "ranking": 22.361600527656655,
                "professional": false,
                "ui_class": ""
            },
            "description": "ㅎㅎㅎㅎㅎㅎㅎㅎㅎㅎㅎㅎㅎㅎㅎㅎ",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 23040,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 777600,
                "max_time": 777600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6774,
                "name": "😀Korea Go한국바둑😀",
                "summary": "많이 가입해주세요. 한국분 환영",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 224,
                "icon": "https://user-uploads.online-go.com/c8cb234ed8cd8edf50f2d51d95670d5b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-09-29T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-09-30T06:13:04.475007Z",
            "ended": "2020-10-25T01:09:24.939510Z",
            "start_waiting": "2020-09-30T06:13:04.208415Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/c8cb234ed8cd8edf50f2d51d95670d5b-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 75516,
            "name": "noob swser 7",
            "director": {
                "id": 844218,
                "username": "lolroblox",
                "country": "au",
                "icon": "https://user-uploads.online-go.com/898603eb835a4063bf795672200accce-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1319.9778490137012,
                        "deviation": 64.3683573753299,
                        "volatility": 0.05999444409408204
                    }
                },
                "ranking": 21.343651147118212,
                "professional": false,
                "ui_class": ""
            },
            "description": "blah blah",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": 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": 885,
                "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-06-07T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-06-07T11:00:06.252209Z",
            "ended": "2022-04-30T14:52:19.553795Z",
            "start_waiting": "2021-06-07T11:00:05.955358Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-15.png",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 88105,
            "name": "3 -> 林立 4 -> 龔嘉洛",
            "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": "3 -> 林立\n4 -> 龔嘉洛",
            "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": "2022-04-02T08:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2022-04-02T07:21:01.255919Z",
            "ended": "2022-04-02T07:29:37.713906Z",
            "start_waiting": "2022-04-02T07:21:01.195229Z",
            "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": 107286,
            "name": "hello",
            "director": {
                "id": 1422349,
                "username": "dasha.izhko",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/27bd6fb34fe529ca72993d6f5af6e2fc?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "leave me alone",
            "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": 13561,
                "name": "проба",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 2,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2023-09-08T19:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-08-15T04:28:05.732225Z",
            "ended": "2025-08-15T04:29:02.403887Z",
            "start_waiting": "2025-08-15T04:28:05.681383Z",
            "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": 88117,
            "name": "2/4 鄒綽廉\t\t黃俊傑",
            "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": "鄒綽廉\t\t黃俊傑",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 33,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1200,
                "period_time": 20,
                "periods": 2
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7533,
                "name": "傳碁 A班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 36,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2022-04-02T11:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2022-04-02T10:00:31.056442Z",
            "ended": "2022-04-02T11:02:16.749769Z",
            "start_waiting": "2022-04-02T10:00:31.000399Z",
            "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": 84913,
            "name": "YOla #5 9x9",
            "director": {
                "id": 1031007,
                "username": "Yusnail",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/65d7cee6775a3c9b99c02ca91d1bd888-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 983.604331056257,
                        "deviation": 67.93376284280079,
                        "volatility": 0.05997849881630418
                    }
                },
                "ranking": 14.534159190895448,
                "professional": false,
                "ui_class": ""
            },
            "description": "Турнир для игры между участниками группы Йошкар-Ола для совместных игр и их разборов :)\n\nДлительность игры - 1 неделя максимум.\nПартии играем разом, договариваемся самостоятельно",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "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": false,
            "group": {
                "id": 9933,
                "name": "Йошкар-Ола",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 26,
                "icon": "https://user-uploads.online-go.com/a546d95660d9b568663a54fd2e5522b5-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-01-19T15:30:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2022-01-19T15:30:11.395352Z",
            "ended": "2022-02-09T15:10:21.988549Z",
            "start_waiting": "2022-01-19T15:30:11.129417Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a546d95660d9b568663a54fd2e5522b5-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 35000,
            "name": "Fast Correspondence Tournament - 9 x 9 Double Elimination - Spring 2018",
            "director": {
                "id": 138053,
                "username": "小狮子",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/f8bf837cba1ea6edbf6e8843cfac768c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1540.2441864612385,
                        "deviation": 65.603044046025,
                        "volatility": 0.060438515645807024
                    }
                },
                "ranking": 24.916298303752857,
                "professional": false,
                "ui_class": ""
            },
            "description": "9 x 9 fast paced correspondence tournament, starting when Spring 2018 begins in Northern Hemisphere.\n\nPlease, avoid delaying your games using the vacation feature. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 30720,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 172800,
                "time_increment": 28800,
                "speed": "correspondence"
            },
            "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": 819,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-03-20T13:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-03-20T13:00:09.414865Z",
            "ended": "2018-05-10T01:26:58.982368Z",
            "start_waiting": "2018-03-20T13:00:07.547843Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 68126,
            "name": "Sunday tournament",
            "director": {
                "id": 56637,
                "username": "milanm",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/3ca6488bbc5b99dee6389c8324babd42-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1664.0568123659991,
                        "deviation": 68.273894875801,
                        "volatility": 0.059924055060653174
                    }
                },
                "ranking": 26.706198830870335,
                "professional": false,
                "ui_class": "aga"
            },
            "description": "weekly 9x9 tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": 180
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5803,
                "name": "Massachusetts Go Foundation",
                "summary": "",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 49,
                "icon": "https://user-uploads.online-go.com/ac9f8e424d9bbcbeaadc6a8c635f8262-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-11-22T18:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-11-22T17:58:24.869420Z",
            "ended": "2020-11-22T18:36:16.222734Z",
            "start_waiting": "2020-11-22T17:58:24.642129Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ac9f8e424d9bbcbeaadc6a8c635f8262-15.png",
            "player_count": 7,
            "ranked": true
        }
    ]
}