List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5551
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 58823,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5552",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5550",
    "results": [
        {
            "id": 128272,
            "name": "第五届围棋锦标赛",
            "director": {
                "id": 1605251,
                "username": "FZD2024",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/fcd1512b34c1e6067a040674bb6686aa-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1730.4378856515395,
                        "deviation": 74.5341444951382,
                        "volatility": 0.05998522547130695
                    }
                },
                "ranking": 27.611734363109694,
                "professional": false,
                "ui_class": ""
            },
            "description": "欢迎加入 https://online-go.com/group/13797  ^_^\n     本届改为瑞士制\n     每手棋14天\n     祝你愉快!",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 1209600,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "per_move": 1209600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 13797,
                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 496,
                "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-05-12T12:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-05-12T12:00:55.191727Z",
            "ended": null,
            "start_waiting": "2025-05-12T12:00:55.087978Z",
            "board_size": 13,
            "active_round": 5,
            "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 105698,
            "name": "August 2023 13x13 A League Correspondence",
            "director": {
                "id": 1396103,
                "username": "Armadillidium",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/bfc956af77caf4d31e4ad6b04b1f718b?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Have fun.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 15861,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 14400,
                "initial_time": 86400,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 7228,
                "name": "DDK Proving Grounds (Double Digit Kyu)",
                "summary": "A place for DDK's to play against other DDK's without fear of SDK's trying to hop in. We do B League (25k-18k) & A League (17k-10k) tournaments monthly.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 644,
                "icon": "https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-08-01T19:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 13,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-08-01T19:00:52.503184Z",
            "ended": "2023-09-22T17:36:04.792483Z",
            "start_waiting": "2023-08-01T19:00:52.187234Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-15.png",
            "player_count": 20,
            "ranked": true
        },
        {
            "id": 83891,
            "name": "Happy New Year (Weekend) Competition #1—Low Level Group 19x19",
            "director": {
                "id": 1065846,
                "username": "OreoHam777",
                "country": "nz",
                "icon": "https://secure.gravatar.com/avatar/001a38e123f0edfca9543faacae7865f?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1442.0911710199657,
                        "deviation": 60.525251779380696,
                        "volatility": 0.05994262403078612
                    }
                },
                "ranking": 23.391947100744954,
                "professional": false,
                "ui_class": ""
            },
            "description": "Happy New Year! This competition will be held for people from 25k-10k. Let's celebrate!",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 9600,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 864000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 10593,
                "name": "Felix the Phoenix's Go Club of Fun",
                "summary": "Felix the Phoenix's Go Club of Fun is a social club which allows players to game, chat and have fun. I hope you'll have a great time in the club!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 6,
                "icon": "https://user-uploads.online-go.com/905298dfa79456e1a238f56390c1f642-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-01-01T01:00:00Z",
            "players_start": 2,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-01-01T01:00:16.183753Z",
            "ended": "2022-06-10T18:16:42.190027Z",
            "start_waiting": "2022-01-01T01:00:15.997676Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/905298dfa79456e1a238f56390c1f642-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 14362,
            "name": "Groundhog Day DDK Tournament",
            "director": {
                "id": 58836,
                "username": "DrQuantum",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/5192a63f12fa80c878392f9d0034612b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1009.305968265523,
                        "deviation": 63.041277815373554,
                        "volatility": 0.05896335840864668
                    }
                },
                "ranking": 15.131301863515551,
                "professional": false,
                "ui_class": ""
            },
            "description": "Here's a relatively fast paced tournament for DDK's to celebrate Groundhog day, Feb 2 (though it will start once we have 16 participants!)",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 45120,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 259200,
                "time_increment": 43200
            },
            "is_open": true,
            "exclude_provisional": true,
            "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": 3640,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2016-02-03T20:02:00Z",
            "players_start": 16,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 0,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2016-02-11T11:43:08.826893Z",
            "ended": "2017-02-08T02:17:40.487775Z",
            "start_waiting": "2016-02-11T11:43:08.511590Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 16,
            "ranked": true
        },
        {
            "id": 23317,
            "name": "Josefstadt Dezember 2016",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 786.9317680033697,
                        "deviation": 63.72458770887046,
                        "volatility": 0.059922034172810626
                    }
                },
                "ranking": 9.369807006429141,
                "professional": false,
                "ui_class": ""
            },
            "description": "13x13",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 120,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 445,
                "name": "Go7wien",
                "summary": "Wiener Go Klub",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 64,
                "icon": "https://user-uploads.online-go.com/dc8c9fc51f6266ef1f39c0eb7b0c81f3-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2016-12-26T17:55:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "random",
            "min_ranking": 3,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2016-12-26T17:55:39.462341Z",
            "ended": "2016-12-26T18:12:31.822971Z",
            "start_waiting": "2016-12-26T17:55:38.781177Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/dc8c9fc51f6266ef1f39c0eb7b0c81f3-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 96041,
            "name": "9x9 Mini League 10k-25k #97",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1428.7607772259034,
                        "deviation": 69.43294160708245,
                        "volatility": 0.06017334395576651
                    }
                },
                "ranking": 23.17695807323701,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 25kyu and 10kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "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": true,
            "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": 694,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-10-30T21:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-10-27T06:14:46.758421Z",
            "ended": "2022-11-13T11:03:51.424343Z",
            "start_waiting": "2022-10-27T06:14:46.611651Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 52529,
            "name": "Corgi Lover 2020 (25k-10k)",
            "director": {
                "id": 347914,
                "username": "TheCorgi",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/3ee57772ca9bd689abb3ea5ad6026455?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1458.9293780419296,
                        "deviation": 62.81399418340524,
                        "volatility": 0.05994023493808088
                    }
                },
                "ranking": 23.660686231301796,
                "professional": false,
                "ui_class": ""
            },
            "description": "People who love Corgis, dogs, and love to play this game.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1300,
                "name": "Corgi Lovers",
                "summary": "For whoever likes Corgi's <3",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 15,
                "icon": "https://user-uploads.online-go.com/f38438b854f5f8e433696c0cffb04f26-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-01-01T08:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-01-01T08:00:51.775861Z",
            "ended": "2021-12-02T05:22:48.775330Z",
            "start_waiting": "2020-01-01T08:00:50.531007Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/f38438b854f5f8e433696c0cffb04f26-15.png",
            "player_count": 29,
            "ranked": true
        },
        {
            "id": 106020,
            "name": "Learning and teaching tournament matches",
            "director": {
                "id": 1126860,
                "username": "Sais Divine Move",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/65e92580b146ff858ab2ac95c8059225-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 947.5549395239026,
                        "deviation": 61.31181399641712,
                        "volatility": 0.05989923401541377
                    }
                },
                "ranking": 13.669766094510784,
                "professional": false,
                "ui_class": ""
            },
            "description": "13x13 size board double elimination pairing method is both set as strength and strength and anyone is invited to join that's with in the ranks of 25kyu- no lower the 10kyu so have fun everyone and I hope that everyone learns something in these teaching tournaments so to all GL & HF \nGLHF.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 315,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 900,
                "period_time": 300,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 11229,
                "name": "teaching games//",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 13,
                "icon": "https://user-uploads.online-go.com/52d062edd2051d6f7c031095bebad887-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-08-02T16:12:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-08-02T16:12:52.655898Z",
            "ended": "2023-08-02T17:43:31.526524Z",
            "start_waiting": "2023-08-02T16:12:52.543862Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/52d062edd2051d6f7c031095bebad887-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 129522,
            "name": "9x9 Mini League 10k-25k #308",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1428.7607772259034,
                        "deviation": 69.43294160708245,
                        "volatility": 0.06017334395576651
                    }
                },
                "ranking": 23.17695807323701,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 25kyu and 10kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 95543,
            "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": 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": 694,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-06-22T19:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-06-20T13:48:26.994297Z",
            "ended": "2025-08-21T13:08:54.023693Z",
            "start_waiting": "2025-06-20T13:48:26.846228Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 33390,
            "name": "Road to SDK",
            "director": {
                "id": 135206,
                "username": "BenVsb",
                "country": "be",
                "icon": "https://user-uploads.online-go.com/9959e354c236fbb8082399e5db1e36cd-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1294.3379070752537,
                        "deviation": 64.18874471317686,
                        "volatility": 0.06003197955500563
                    }
                },
                "ranking": 20.889548625852704,
                "professional": false,
                "ui_class": ""
            },
            "description": "Road to SDK with a tournament for DDK  and fast correspondence player. To do a review is recommended.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 38880,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 345600,
                "time_increment": 36000,
                "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": 814,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-01-10T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-01-04T16:48:26.995124Z",
            "ended": "2018-02-04T09:20:12.812854Z",
            "start_waiting": "2018-01-04T16:48:24.199314Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 6,
            "ranked": true
        }
    ]
}