List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-player_count&page=5617
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59549,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-player_count&page=5618",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-player_count&page=5616",
    "results": [
        {
            "id": 135230,
            "name": "sdfghj",
            "director": {
                "id": 823378,
                "username": "rouma",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/e25df468ca27d40a9646837908b798f4?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 604.8529646090938,
                        "deviation": 67.79600859052674,
                        "volatility": 0.060302378539069855
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "hludg shlep",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 10,
                "initial_time": 30,
                "max_time": 30
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 8605,
                "name": "Go Magic",
                "summary": "A modern platform for learning Go",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 2083,
                "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-12-10T23:00:00Z",
            "players_start": 0,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2025-12-10T23:00:50.188298Z",
            "ended": "2025-12-10T23:00:50.165189Z",
            "start_waiting": "2025-12-10T23:00:50.091128Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 135399,
            "name": "deneme t",
            "director": {
                "id": 1879993,
                "username": "alpertunga",
                "country": "zz",
                "icon": "https://user-uploads.online-go.com/f18e739ef9598fa6a5ad888bb6ee8317-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 755.3006051596215,
                        "deviation": 67.2588679478109,
                        "volatility": 0.05999935884220933
                    }
                },
                "ranking": 8.420061512727107,
                "professional": false,
                "ui_class": ""
            },
            "description": "deneme t",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 91187,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 604800,
                "period_time": 86400,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 15983,
                "name": "Muğla Go Kulübü",
                "summary": "Muğla Go Kulübü",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 4,
                "icon": "https://user-uploads.online-go.com/ce298879230b9170cabc783639bcf3a5-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-12-15T21:00:00Z",
            "players_start": 1,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2025-12-15T21:01:04.365633Z",
            "ended": "2025-12-15T21:01:04.338379Z",
            "start_waiting": "2025-12-15T21:01:04.258081Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ce298879230b9170cabc783639bcf3a5-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 137161,
            "name": "19x19 swiss blitz toaurment",
            "director": {
                "id": 1819801,
                "username": "jackwpy",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/2fca278d4da90a3942c959fcd17af33e?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 831.9463060160475,
                        "deviation": 71.80151065907383,
                        "volatility": 0.06029382626256753
                    }
                },
                "ranking": 10.65755716851503,
                "professional": false,
                "ui_class": ""
            },
            "description": "played on 19x19,blitz",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 5,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "blitz",
                "pause_on_weekends": false,
                "main_time": 55,
                "period_time": 5,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 8605,
                "name": "Go Magic",
                "summary": "A modern platform for learning Go",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 2083,
                "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-02-17T05:00:00Z",
            "players_start": 0,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 33,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-02-17T05:00:35.438383Z",
            "ended": "2026-02-17T05:00:35.413638Z",
            "start_waiting": "2026-02-17T05:00:35.326680Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 3475,
            "name": "Reddit Round Robin #7 - Handicap - 7k-3d",
            "director": {
                "id": 963,
                "username": "thouis",
                "country": "_LGBT",
                "icon": "https://user-uploads.online-go.com/a2e7f9e59abe305c58d78f58f24e5f13-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1293.1627795358113,
                        "deviation": 63.049690073664166,
                        "volatility": 0.05956859367610595
                    }
                },
                "ranking": 20.868521227058793,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Round Robin, 7k-3d, 10 players max, Handicap, Correspondence",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 38,
                "name": "reddit",
                "summary": "/r/baduk",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 2283,
                "icon": "https://user-uploads.online-go.com/5021b9df7b49c54cc5eb5d8ce9d893bb-64.png"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 23,
            "max_ranking": 32,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2014-12-18T14:16:54.934732Z",
            "ended": "2015-10-30T09:58:07.808629Z",
            "start_waiting": "2014-12-18T14:16:52.193944Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5021b9df7b49c54cc5eb5d8ce9d893bb-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 39908,
            "name": "Friendly match",
            "director": {
                "id": 554852,
                "username": "Peter100",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/8fd2c30e9d0fd28a5477f7a199258b29-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 962.8033927930046,
                        "deviation": 104.37657823486722,
                        "volatility": 0.05999056211021857
                    }
                },
                "ranking": 14.039339890505834,
                "professional": false,
                "ui_class": ""
            },
            "description": "For new players.\n Go and play go!",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 60,
            "time_control_parameters": {
                "time_control": "simple",
                "speed": "live",
                "system": "simple",
                "pause_on_weekends": false,
                "per_move": 60
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2710,
                "name": "For all, who like go!",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 3,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2018-08-12T10:00:00Z",
            "players_start": 1,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-08-12T10:42:17.539921Z",
            "ended": "2018-08-12T10:42:17.470980Z",
            "start_waiting": "2018-08-12T10:42:17.309822Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 8819,
            "name": "Go Championship 2015 Summer Tournament",
            "director": {
                "id": 165446,
                "username": "☠Pirate☠",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/006c62e7e6e46ad398a401b6de49d319-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1368.424873744287,
                        "deviation": 63.94648586003355,
                        "volatility": 0.06001885639619143
                    }
                },
                "ranking": 22.17810205978375,
                "professional": false,
                "ui_class": ""
            },
            "description": "Who will be the summer champion ?",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 313,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 300,
                "main_time": 1200,
                "periods": 2
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 680,
                "name": "Czech and Slovakian GO group",
                "summary": "We are for any Czech and Slovakian player on this server.\n\nJsme tu pro všechny české a slovenské hráče na tomto serveru.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 115,
                "icon": "https://user-uploads.online-go.com/2d57f247eb50b82454963cc395766d2c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2015-07-04T18:55:00Z",
            "players_start": null,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-07-04T18:55:41.614689Z",
            "ended": "2015-07-04T18:55:41.604434Z",
            "start_waiting": "2015-07-04T18:55:41.469478Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/2d57f247eb50b82454963cc395766d2c-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 5371,
            "name": "8:55 start time",
            "director": {
                "id": 98433,
                "username": "20651",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/97df52655f94268e245bbced4a4fcbae?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1260.8571224829986,
                        "deviation": 132.92568460914737,
                        "volatility": 0.06000192509012938
                    }
                },
                "ranking": 20.282843840846155,
                "professional": false,
                "ui_class": ""
            },
            "description": "lol likaboss",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86760,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 32400,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 554,
                "name": "SOMS Go Club Group",
                "summary": "Only Savvanna oaks go club people",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17,
                "icon": "https://user-uploads.online-go.com/9334bf177365e6636e1ca8790499a83c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2015-02-25T14:55:00Z",
            "players_start": null,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-02-25T14:55:16.588945Z",
            "ended": "2015-02-25T14:55:16.575921Z",
            "start_waiting": "2015-02-25T14:55:16.438778Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9334bf177365e6636e1ca8790499a83c-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 58407,
            "name": "uuuuuuu",
            "director": {
                "id": 744918,
                "username": "tinntinn",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/972793b24a485d6c0721c2a576171b74-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1633.8372419179582,
                        "deviation": 65.7140021500707,
                        "volatility": 0.059989397404345134
                    }
                },
                "ranking": 26.28192647661824,
                "professional": false,
                "ui_class": ""
            },
            "description": "uuuuuu",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 259200,
                "period_time": 86400,
                "periods": 1
            },
            "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": 17936,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-04-03T07:00:00Z",
            "players_start": 1,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 25,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-04-03T07:00:38.226158Z",
            "ended": "2020-04-03T07:00:38.146810Z",
            "start_waiting": "2020-04-03T07:00:37.827298Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 8827,
            "name": "xaxCS",
            "director": {
                "id": 165446,
                "username": "☠Pirate☠",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/006c62e7e6e46ad398a401b6de49d319-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1368.424873744287,
                        "deviation": 63.94648586003355,
                        "volatility": 0.06001885639619143
                    }
                },
                "ranking": 22.17810205978375,
                "professional": false,
                "ui_class": ""
            },
            "description": "xayxyws",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 313,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 300,
                "main_time": 1200,
                "periods": 2
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 680,
                "name": "Czech and Slovakian GO group",
                "summary": "We are for any Czech and Slovakian player on this server.\n\nJsme tu pro všechny české a slovenské hráče na tomto serveru.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 115,
                "icon": "https://user-uploads.online-go.com/2d57f247eb50b82454963cc395766d2c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2015-07-04T22:15:00Z",
            "players_start": null,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-07-04T22:15:52.384706Z",
            "ended": "2015-07-04T22:15:52.373548Z",
            "start_waiting": "2015-07-04T22:15:52.261217Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/2d57f247eb50b82454963cc395766d2c-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 14068,
            "name": "lololol",
            "director": {
                "id": 213717,
                "username": "Дэлиор",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/4e9e227ceb23ccebef8ce297ca6f349d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 914.1972663051623,
                        "deviation": 100.276868092111,
                        "volatility": 0.06002204781108671
                    }
                },
                "ranking": 12.840103816933503,
                "professional": false,
                "ui_class": ""
            },
            "description": "играйте все",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 40560,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 86400,
                "max_time": 604800,
                "time_increment": 39600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 9,
                "name": "Русская группа",
                "summary": "Интересные, призовые турниры.",
                "require_invitation": true,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1956,
                "icon": "https://user-uploads.online-go.com/fd8ca9680500359b55b5bc1196226b5f-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2016-01-13T18:00:00Z",
            "players_start": null,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-01-13T18:00:08.337941Z",
            "ended": "2016-01-13T18:00:08.314779Z",
            "start_waiting": "2016-01-13T18:00:08.123655Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/fd8ca9680500359b55b5bc1196226b5f-15.png",
            "player_count": 1,
            "ranked": true
        }
    ]
}