List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=5719
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59513,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=5720",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=5718",
    "results": [
        {
            "id": 123408,
            "name": "9x9 merry early Christmas",
            "director": {
                "id": 1672844,
                "username": "deleted-b9b59e78-7fe2-421b-9592-08ffce621348",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/50b661e8675f0399df4a903957995b4b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 800.7266229935348,
                        "deviation": 70.04385716130463,
                        "volatility": 0.060331232367038926
                    }
                },
                "ranking": 9.772108826139116,
                "professional": false,
                "ui_class": ""
            },
            "description": "Welcome to join, have fun, and merry Christmas.",
            "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": false,
            "group": {
                "id": 14868,
                "name": "Study group 9x9, 13x13, 19x19",
                "summary": "We like to play all go seriously. We study, play each other, and have tournaments every now and then.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 71,
                "icon": "https://user-uploads.online-go.com/1b1fb2428dd6775b27c3de3c3fe40fa2-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-12-20T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-12-20T15:00:55.241507Z",
            "ended": "2025-02-06T17:08:44.402086Z",
            "start_waiting": "2024-12-20T15:00:55.110001Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1b1fb2428dd6775b27c3de3c3fe40fa2-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 85519,
            "name": "9x9 D.E. 02/05/2022 🦎",
            "director": {
                "id": 584481,
                "username": "Mulsiphix",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/f79dd274bd83ca6fdf5e2c1af119ba63-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1723.508332937557,
                        "deviation": 67.30621035483453,
                        "volatility": 0.06024145341136911
                    }
                },
                "ranking": 27.51884388340188,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n\n☆ This is a ‘Humdrum Correspondence Tournament’. Please, avoid delaying your games using the vacation feature or pause. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).\n\n☆ Does NOT pause on the weekend.\n\n☆ If this sounds like a good time to you, please join us!\n<HR><BR>\nTournaments are a great way to locate players who are more competitive than your average opponent. A big part of improving your own skills is to have them tested by capable challengers. If you would like to be a part of more New Zealand rule set tournaments, check out our group for weekly opportunities.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "nz",
            "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": 432000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3207,
                "name": "New Zealand Tournaments",
                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 591,
                "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-02-06T02:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-02-06T02:00:43.685615Z",
            "ended": "2022-06-28T23:42:53.123721Z",
            "start_waiting": "2022-02-06T02:00:43.525453Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 60613,
            "name": "9x9 tournament",
            "director": {
                "id": 782776,
                "username": "tournament director",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/3e1cf302ebd76b893c6582389229b303?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "casual 9x9 tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 32,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 30,
                "initial_time": 180,
                "max_time": 900
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5744,
                "name": "tournament",
                "summary": "",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 11,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-05-16T22:30:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2020-05-16T22:30:38.398889Z",
            "ended": "2020-05-17T00:07:17.508023Z",
            "start_waiting": "2020-05-16T22:30:37.517219Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 11,
            "ranked": true
        },
        {
            "id": 110205,
            "name": "ซ้อมแข่งวันหยุด ลุยเลยยยยย",
            "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": "สู้ววววววว",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 45,
            "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": 10100,
                "name": "Class Mr.Boss",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 36,
                "icon": "https://user-uploads.online-go.com/a7deae48f8d7c9175dfafdf4122b30eb-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-12-02T02:10:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-12-02T02:10:26.635352Z",
            "ended": "2023-12-02T02:44:19.186695Z",
            "start_waiting": "2023-12-02T02:10:26.560942Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a7deae48f8d7c9175dfafdf4122b30eb-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 42386,
            "name": "Small (9X9)",
            "director": {
                "id": 584305,
                "username": "ประเทศกูมี",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/18969ae6fbfbb401890bba701dc54019-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1167.5543835560698,
                        "deviation": 85.72707973661161,
                        "volatility": 0.05999735159466658
                    }
                },
                "ranking": 18.503061308691343,
                "professional": false,
                "ui_class": ""
            },
            "description": "Its just random tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": true,
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 222,
                "name": "Low-Rating 30k's",
                "summary": "A group so low-rating 30k's can find each other, play against each other, and beat each other. Everyone deserves an approximately 50/50 win rate.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 279,
                "icon": "https://user-uploads.online-go.com/43373022b3404dee8e6d5616a14de877-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-11-01T10:20:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-11-01T20:24:37.747572Z",
            "ended": "2018-11-22T20:16:13.469986Z",
            "start_waiting": "2018-11-01T20:24:37.217283Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/43373022b3404dee8e6d5616a14de877-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 103056,
            "name": "校隊B組第4次比賽",
            "director": {
                "id": 922838,
                "username": "go2708",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/b3e7f690c33f687a9632741520125809?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2051.551691597471,
                        "deviation": 123.68029630025042,
                        "volatility": 0.05999816676709507
                    }
                },
                "ranking": 31.5523722737371,
                "professional": false,
                "ui_class": ""
            },
            "description": "校隊B組第4次比賽",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 19147,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 10182,
                "name": "DCFWMS-Team",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 14,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2023-05-09T08:50:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2023-05-09T08:46:34.315695Z",
            "ended": "2023-12-18T13:00:23.764589Z",
            "start_waiting": "2023-05-09T08:46:34.176228Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 102818,
            "name": "fund 1",
            "director": {
                "id": 832318,
                "username": "miguel0204",
                "country": "br",
                "icon": "https://secure.gravatar.com/avatar/471c6f87781deced9d324ef7093a8382?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1682.120927799038,
                        "deviation": 62.06229813843525,
                        "volatility": 0.06006209148686723
                    }
                },
                "ranking": 26.956148694392684,
                "professional": false,
                "ui_class": ""
            },
            "description": "fund 1",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 12,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "blitz",
                "pause_on_weekends": false,
                "main_time": 60,
                "period_time": 10,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 13117,
                "name": "alunos verissimo",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 104,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2023-05-02T16:00:00Z",
            "players_start": 10,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-05-02T15:43:09.860996Z",
            "ended": "2023-05-02T16:22:26.120351Z",
            "start_waiting": "2023-05-02T15:43:09.730316Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 116424,
            "name": "Handicap Arena 2024 - 042",
            "director": {
                "id": 2408,
                "username": "richyfourtytwo",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/8482108492340cf4f2021653180eb741-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1542.8586058916221,
                        "deviation": 65.28346783832163,
                        "volatility": 0.05973705695328037
                    }
                },
                "ranking": 24.955559936203496,
                "professional": false,
                "ui_class": ""
            },
            "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": 106,
                "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-05-27T10:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-05-27T05:45:41.809354Z",
            "ended": "2024-07-28T16:07:15.206444Z",
            "start_waiting": "2024-05-27T05:45:41.624332Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 136137,
            "name": "13x13 Open D.E. Cup #87",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1328.4337060647135,
                        "deviation": 68.98965903759373,
                        "volatility": 0.060206245193250185
                    }
                },
                "ranking": 21.491478440446674,
                "professional": false,
                "ui_class": ""
            },
            "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 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": false,
            "group": {
                "id": 12599,
                "name": "GO Special Tournaments",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 72,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2026-01-18T21:00:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-01-18T01:44:44.365652Z",
            "ended": null,
            "start_waiting": "2026-01-18T01:44:44.217347Z",
            "board_size": 13,
            "active_round": 2,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 86429,
            "name": "9x9 Open D.E. Cup #6",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1328.4337060647135,
                        "deviation": 68.98965903759373,
                        "volatility": 0.060206245193250185
                    }
                },
                "ranking": 21.491478440446674,
                "professional": false,
                "ui_class": ""
            },
            "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 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": false,
            "group": {
                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 697,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-03-06T21:00:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-03-05T05:24:54.049216Z",
            "ended": "2022-07-26T04:19:20.890257Z",
            "start_waiting": "2022-03-05T05:24:53.941105Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 8,
            "ranked": true
        }
    ]
}