List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=46
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59896,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=47",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=45",
    "results": [
        {
            "id": 45141,
            "name": "DDK.NL Go Club - February LDDK Swiss",
            "director": {
                "id": 463810,
                "username": "SuzieKyu",
                "country": "nl",
                "icon": "https://user-uploads.online-go.com/62a582e29c917f3dfcb81bce64a13f7a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1171.4995125731932,
                        "deviation": 63.025646037873635,
                        "volatility": 0.06000597450469722
                    }
                },
                "ranking": 18.5811525604583,
                "professional": false,
                "ui_class": ""
            },
            "description": "Monthly Swiss tournament for low ddk players.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 172800,
            "time_control_parameters": {
                "time_control": "simple",
                "speed": "correspondence",
                "system": "simple",
                "pause_on_weekends": false,
                "per_move": 172800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2979,
                "name": "Internatio.NL Go Club",
                "summary": "Virtuele DDK club voor Nederlandse spelers en hun vrienden",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 64,
                "icon": "https://user-uploads.online-go.com/cbf3d1c63e4b51aee158455500f9a9e3-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-02-23T11:00:00Z",
            "players_start": 6,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2019-02-24T21:33:09.440681Z",
            "ended": "2019-04-04T17:37:22.031152Z",
            "start_waiting": "2019-02-24T21:33:09.003316Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/cbf3d1c63e4b51aee158455500f9a9e3-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 59625,
            "name": "Low ranked 13 x 13 tournament 20 - 24 kyu",
            "director": {
                "id": 635649,
                "username": "Kinsetsu",
                "country": "gb",
                "icon": "https://user-uploads.online-go.com/0b77bbe495d5bb9305a966f363acdf71-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 636.067546201368,
                        "deviation": 68.29021479174683,
                        "volatility": 0.05997814582336807
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "Low ranking tournament for 20-24 kyu on a 13 x 13 board.",
            "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",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 177,
                "name": "GO Beginners",
                "summary": "For alle GO beginners of the world. We play tournaments with rating limit.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 258,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2020-04-30T22:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 6,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-30T22:00:47.389481Z",
            "ended": "2020-07-19T15:17:40.651823Z",
            "start_waiting": "2020-04-30T22:00:44.472077Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 30856,
            "name": "Test-Tournament",
            "director": {
                "id": 462637,
                "username": "Greenhunter",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/9185272bd5b0a810c439d8201b15aa95-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1301.4776463296544,
                        "deviation": 69.38163651839255,
                        "volatility": 0.05992312229793404
                    }
                },
                "ranking": 21.01689617974638,
                "professional": false,
                "ui_class": ""
            },
            "description": "Test... (I'll try to put one on every month's end )",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 120,
            "time_control_parameters": {
                "time_control": "simple",
                "speed": "live",
                "system": "simple",
                "pause_on_weekends": false,
                "per_move": 120
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1807,
                "name": "Isnirekikari",
                "summary": "Hi, this is a group for players with 25kyu till 1kyu. Especially beginners are welcome! In this group everyone should be able to play, without having to pay attention on the rank difference problem.",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/df363079a96b4c95cc28e1450823817d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2017-10-28T18:00:00Z",
            "players_start": 2,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2017-10-30T19:09:13.197400Z",
            "ended": "2017-10-30T19:15:21.579500Z",
            "start_waiting": "2017-10-30T19:09:12.756200Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/df363079a96b4c95cc28e1450823817d-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 70175,
            "name": "Kittens Unite II: Twenty-Plus-Kyu Tournament",
            "director": {
                "id": 109488,
                "username": "DVbS78rkR7NVe",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/e379f98cdecd568bf2a9c1deb14ea283?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2026.1476299885521,
                        "deviation": 66.05609734432652,
                        "volatility": 0.059874270189468615
                    }
                },
                "ranking": 31.26391960044579,
                "professional": false,
                "ui_class": ""
            },
            "description": "A 13x13 tournament for 20k players and lower\n\n<hr/>\n\nJoin the group for more cat tournaments ^__^",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "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": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6124,
                "name": "Leopard's Resting Tree",
                "summary": "A little corner for cat tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 312,
                "icon": "https://user-uploads.online-go.com/7198cc33b9da0045cda9721b7fc8e4f2-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-01-23T12:00:00Z",
            "players_start": 2,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-01-22T08:49:26.035817Z",
            "ended": "2021-10-31T05:17:18.795350Z",
            "start_waiting": "2021-01-22T08:49:09.281766Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7198cc33b9da0045cda9721b7fc8e4f2-15.png",
            "player_count": 158,
            "ranked": true
        },
        {
            "id": 71211,
            "name": "9x9 Tournament 20-25k",
            "director": {
                "id": 878148,
                "username": "LightningSword9",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/e803ae1155f71ea2d5939a299c78a89a?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 857.9160778417479,
                        "deviation": 70.2083462414838,
                        "volatility": 0.060014505833218754
                    }
                },
                "ranking": 11.369150680113405,
                "professional": false,
                "ui_class": ""
            },
            "description": "9x9 tournament for beginners!",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "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": 7438,
                "name": "Practice Group.",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 31,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-02-14T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-02-14T15:00:46.669369Z",
            "ended": "2021-03-06T17:57:24.608118Z",
            "start_waiting": "2021-02-14T15:00:46.544211Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 34524,
            "name": "Class D Rapid",
            "director": {
                "id": 153455,
                "username": "El0m",
                "country": "gb",
                "icon": "https://user-uploads.online-go.com/018b099d6b5f111ad780b468738dc998-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1295.7038814112566,
                        "deviation": 70.83331711939027,
                        "volatility": 0.0603648964543371
                    }
                },
                "ranking": 20.913967003155264,
                "professional": false,
                "ui_class": ""
            },
            "description": "A tournament for beginners and those new to the game.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 84480,
            "time_control_parameters": {
                "period_time": 1209600,
                "main_time": 2419200,
                "system": "canadian",
                "pause_on_weekends": true,
                "time_control": "canadian",
                "stones_per_period": 21,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 1398,
                "name": "Ratio",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 7,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2018-03-01T07:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-03-01T07:00:52.612294Z",
            "ended": "2018-06-29T13:27:58.040466Z",
            "start_waiting": "2018-03-01T07:00:51.861438Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 46136,
            "name": "20 Kyu and Below Tournament [1st Time]",
            "director": {
                "id": 486582,
                "username": "ナイ Nai",
                "country": "mm",
                "icon": "https://user-uploads.online-go.com/7f4e159e3d8b1fe4c269cb0772e17a8e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1163.935381050349,
                        "deviation": 64.98923351743534,
                        "volatility": 0.05996945433969011
                    }
                },
                "ranking": 18.431193118175486,
                "professional": false,
                "ui_class": ""
            },
            "description": "A tournament for the players with 20 Kyu and Below.\nPlease feel free to join. It will start when full.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 93120,
            "time_control_parameters": {
                "period_time": 86400,
                "main_time": 604800,
                "system": "byoyomi",
                "pause_on_weekends": false,
                "time_control": "byoyomi",
                "periods": 1,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1171,
                "name": "20 Kyu and Below",
                "summary": "Looking for a group that's around your level and you are 20 kyu or below than join here.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 6,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2019-03-03T14:30:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-03-03T14:30:04.622094Z",
            "ended": "2019-03-05T14:54:59.943532Z",
            "start_waiting": "2019-03-03T14:30:04.204471Z",
            "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": 131124,
            "name": "Bokindo",
            "director": {
                "id": 1729163,
                "username": "Лёд певческой пещеры",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/07aa2ab0b2bb859162bcab33f695bf3f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1120.5308575488752,
                        "deviation": 64.59776054280978,
                        "volatility": 0.060235813486852634
                    }
                },
                "ranking": 17.551394030657434,
                "professional": false,
                "ui_class": ""
            },
            "description": "Раундов-1\n-9 человек  🧍‍♂️",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "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": 6335,
                "name": "BOKENDO",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/9baef4bd446d0558ff7bff46039f16c6-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-08-05T09:00:00Z",
            "players_start": 0,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2025-08-05T09:00:52.072000Z",
            "ended": "2025-08-05T09:00:52.061893Z",
            "start_waiting": "2025-08-05T09:00:52.032443Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9baef4bd446d0558ff7bff46039f16c6-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 58915,
            "name": "🍎apple🍎",
            "director": {
                "id": 736023,
                "username": "2026vs.",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/7b00a5b491f99a02c822db43039ddd91-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1529.4955917779457,
                        "deviation": 63.196335111054026,
                        "volatility": 0.060307009572073786
                    }
                },
                "ranking": 24.754179686665076,
                "professional": false,
                "ui_class": ""
            },
            "description": "9x9Tournament\n開始時間:2020年4月18日星期六 14:00\n\n啟動時間:\n2020/04/18 14:00\n對局速度\n\n時間控制\n\n單步時間\n\n週末暫停計時\n\n9x9Tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 5213,
                "name": "apple",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 0,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-18T06:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-18T06:00:18.268415Z",
            "ended": "2020-04-22T18:31:52.698787Z",
            "start_waiting": "2020-04-18T06:00:17.192728Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 49414,
            "name": "training",
            "director": {
                "id": 629704,
                "username": "éphédio",
                "country": "fr",
                "icon": "https://user-uploads.online-go.com/ff025ba09d18d7084033ee061ef89d80-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 716.7349439079935,
                        "deviation": 74.42620290508277,
                        "volatility": 0.059998984920183906
                    }
                },
                "ranking": 7.206776400930263,
                "professional": false,
                "ui_class": ""
            },
            "description": "it's a training",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "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": true,
            "group": {
                "id": 3547,
                "name": "unit of the avatar",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 4,
                "icon": "https://user-uploads.online-go.com/4c18c9d86347aeb6b78fad5189cb5b6c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2019-06-17T07:30:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-06-17T07:30:27.843249Z",
            "ended": "2019-06-17T07:44:19.300522Z",
            "start_waiting": "2019-06-17T07:30:27.570504Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4c18c9d86347aeb6b78fad5189cb5b6c-15.png",
            "player_count": 2,
            "ranked": true
        }
    ]
}