List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=1128
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59605,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=1129",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=1127",
    "results": [
        {
            "id": 89497,
            "name": "2022-05-02 tournament",
            "director": {
                "id": 1081106,
                "username": "stbede",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/7b6ff2a2b035af080ededb294f959105?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1339.6599157171074,
                        "deviation": 60.64613463724761,
                        "volatility": 0.06000633905958873
                    }
                },
                "ranking": 21.686290410311855,
                "professional": false,
                "ui_class": ""
            },
            "description": "2022-05-02 tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 12,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 180,
                "period_time": 10,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 11618,
                "name": "CM+Alumni",
                "summary": "",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 4,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2022-05-02T19:45:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2022-05-02T19:45:08.623593Z",
            "ended": "2022-05-02T20:08:13.349775Z",
            "start_waiting": "2022-05-02T19:45:08.554971Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 80199,
            "name": "제 2차 대우초솔반 리그전",
            "director": {
                "id": 1052277,
                "username": "대우초신유홍",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/9f0a03c06a8cce1bacce2c77dcd34273?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1185.2687526247532,
                        "deviation": 284.0352759935332,
                        "volatility": 0.06000154817617565
                    }
                },
                "ranking": 18.851659880837715,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "2차 리그전",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "korean",
            "time_per_move": 30,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 60,
                "period_time": 30,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 10112,
                "name": "대우초솔반",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 32,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-09-17T05:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2021-09-17T05:00:15.482195Z",
            "ended": "2021-09-17T05:20:26.291588Z",
            "start_waiting": "2021-09-17T05:00:15.127876Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 13,
            "ranked": true
        },
        {
            "id": 60435,
            "name": "9x9 Correspondence Round Robin",
            "director": {
                "id": 747694,
                "username": "kingkaio",
                "country": "ua",
                "icon": "https://user-uploads.online-go.com/153fb07f8ce9121e748b2e51172936d2-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1167.6804695413712,
                        "deviation": 62.48738706337885,
                        "volatility": 0.06012577810744558
                    }
                },
                "ranking": 18.505561177652012,
                "professional": false,
                "ui_class": ""
            },
            "description": "Tournament for anybody",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5683,
                "name": "Tournaments Group",
                "summary": "A group for people who like tournaments.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 66,
                "icon": "https://user-uploads.online-go.com/905cdf0c41d571282428b5d769b638c3-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-05-12T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-05-13T19:01:46.160744Z",
            "ended": "2020-05-28T16:50:24.409327Z",
            "start_waiting": "2020-05-13T19:01:45.372277Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/905cdf0c41d571282428b5d769b638c3-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 80213,
            "name": "17 de setembro",
            "director": {
                "id": 1019032,
                "username": "mirela.milanez",
                "country": "br",
                "icon": "https://user-uploads.online-go.com/828ff9a85cf82c5241fbbb029f9a19fa-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 851.1876728261119,
                        "deviation": 68.85338231569808,
                        "volatility": 0.060147601013971846
                    }
                },
                "ranking": 11.186875752977109,
                "professional": false,
                "ui_class": ""
            },
            "description": "Estudo",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "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": 300
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 9676,
                "name": "General",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 212,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-09-17T13:30:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-09-17T13:30:37.532552Z",
            "ended": "2021-09-17T13:39:58.434740Z",
            "start_waiting": "2021-09-17T13:30:37.399299Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 82435,
            "name": "1st Round 28 Day",
            "director": {
                "id": 1079071,
                "username": "m-12448426",
                "country": "005",
                "icon": "https://user-uploads.online-go.com/e7cb8bab479299df27cef602c1b715bf-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "READY 3.2.1 GOOOOOOOO",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 26880,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 10548,
                "name": "Torbortion Animai World",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1,
                "icon": "https://user-uploads.online-go.com/e7cb8bab479299df27cef602c1b715bf-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-11-13T02:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-11-15T02:41:39.010615Z",
            "ended": "2022-02-24T22:02:57.198539Z",
            "start_waiting": "2021-11-15T02:41:38.909358Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/e7cb8bab479299df27cef602c1b715bf-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 134276,
            "name": "Handicap Arena 2025 - 092",
            "director": {
                "id": 526987,
                "username": "Gia",
                "country": "gr",
                "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1077.7610819445333,
                        "deviation": 64.33073886772479,
                        "volatility": 0.060067367314019605
                    }
                },
                "ranking": 16.6504715946996,
                "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": 107,
                "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-11-14T17:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-11-12T15:05:26.084297Z",
            "ended": "2025-12-30T19:36:14.858442Z",
            "start_waiting": "2025-11-12T15:05:25.883820Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 43151,
            "name": "UMD Go Club Dec Correspondance",
            "director": {
                "id": 320336,
                "username": "bhloalcek",
                "country": "_Pirate",
                "icon": "https://secure.gravatar.com/avatar/48555371a35d8aff64ada614238ff740?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1596.6119671388312,
                        "deviation": 62.01037814717056,
                        "volatility": 0.059890914758511576
                    }
                },
                "ranking": 25.74837637157072,
                "professional": false,
                "ui_class": ""
            },
            "description": "We try double elim this time! play faster guys",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 93120,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": true,
                "time_control": "fischer",
                "initial_time": 604800,
                "max_time": 604800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2821,
                "name": "UMD go club",
                "summary": "go club at the University of Maryland, College Park",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 34,
                "icon": "https://user-uploads.online-go.com/2ecaf6357b0b70c10ef967a7824194f5-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-12-02T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2018-12-02T04:00:34.199690Z",
            "ended": "2020-05-22T14:09:20.841532Z",
            "start_waiting": "2018-12-02T04:00:33.074649Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/2ecaf6357b0b70c10ef967a7824194f5-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 118050,
            "name": "9x9 ტურნირი პარასკეობით",
            "director": {
                "id": 1214291,
                "username": "zaurodisharia",
                "country": "ge",
                "icon": "https://user-uploads.online-go.com/71bf1bbf1d7e8d3af272717e29df91ec-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1203.5244026881273,
                        "deviation": 64.6000991648331,
                        "volatility": 0.060004239178305406
                    }
                },
                "ranking": 19.205500920403892,
                "professional": false,
                "ui_class": ""
            },
            "description": "9x9 ტურნირი პარასკეობით",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 9,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "blitz",
                "pause_on_weekends": false,
                "time_increment": 3,
                "initial_time": 180,
                "max_time": 180
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 692,
                "name": "Georgia - საქართველოს გოს ფედერაცია",
                "summary": "საქართველოს გოს ფედერაციის ჯგუფში გაწევრიანება შეუძლიათ მხოლოდ საქართველოს  მოქალაქეებს, რომლებიც დარეგისტრირებულები არიან ამ საიტზე და პროფილში მითითებული აქვთ სახელი და გვარი.",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 267,
                "icon": "https://user-uploads.online-go.com/6a63e1cd3341783b3bb281cb4a0908c7-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-07-12T18:40:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2024-07-12T18:40:24.008283Z",
            "ended": "2024-07-12T19:09:18.612938Z",
            "start_waiting": "2024-07-12T18:40:23.930848Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6a63e1cd3341783b3bb281cb4a0908c7-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 125096,
            "name": "Turnier der Legendären",
            "director": {
                "id": 1695800,
                "username": "Amin2281",
                "country": "_Starfleet",
                "icon": "https://user-uploads.online-go.com/32df029600e243e182e2d24a8fa0f7bd-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 707.1058459529082,
                        "deviation": 61.94823797336733,
                        "volatility": 0.059975602797038056
                    }
                },
                "ranking": 6.893655695783528,
                "professional": false,
                "ui_class": ""
            },
            "description": "Jzfckhtcw",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 16,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 10,
                "initial_time": 180,
                "max_time": 3600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 14974,
                "name": "DieAbis",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/b5f066ef64abd3108f1998fa98d5c58d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-02-05T13:54:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-08-15T03:10:05.780213Z",
            "ended": "2025-08-15T03:24:07.005233Z",
            "start_waiting": "2025-08-15T03:10:05.679860Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/b5f066ef64abd3108f1998fa98d5c58d-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 30830,
            "name": "blah bah",
            "director": {
                "id": 196186,
                "username": "Freeman Lo",
                "country": "hk",
                "icon": "https://secure.gravatar.com/avatar/69f13a49e5da8c7b2aa6bd7a267df367?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1880.307815675556,
                        "deviation": 62.16710980826274,
                        "volatility": 0.06006225122354769
                    }
                },
                "ranking": 29.53459664289433,
                "professional": false,
                "ui_class": ""
            },
            "description": "diego costa",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 25,
                "name": "Go Basics",
                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17953,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2017-10-05T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2017-10-13T07:11:32.751675Z",
            "ended": "2018-04-15T17:17:48.379304Z",
            "start_waiting": "2017-10-13T07:11:32.429757Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 4,
            "ranked": true
        }
    ]
}