List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=580
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59277,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=581",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=579",
    "results": [
        {
            "id": 111920,
            "name": "9x9 Mini League 1k-9k #105",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1369.9928085016227,
                        "deviation": 69.31258725461282,
                        "volatility": 0.060203748322655244
                    }
                },
                "ranking": 22.20461203584344,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 9kyu and 1kyu. 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": 697,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-01-28T20:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-01-28T19:58:38.893877Z",
            "ended": "2024-02-09T23:41:49.618882Z",
            "start_waiting": "2024-01-28T19:58:38.547280Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 71078,
            "name": "Want to play?",
            "director": {
                "id": 770016,
                "username": "Patience_Tester",
                "country": "gb",
                "icon": "https://user-uploads.online-go.com/a285eebd12660e20df271f390b0dcdf9-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1705.104438159741,
                        "deviation": 66.22618258501114,
                        "volatility": 0.060014521215293805
                    }
                },
                "ranking": 27.270315230856916,
                "professional": false,
                "ui_class": ""
            },
            "description": "Want to play?",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 265920,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 604800,
                "period_time": 259200,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6630,
                "name": "Go friends 🐬",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 361,
                "icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-03-10T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2021-03-10T11:00:09.896338Z",
            "ended": "2021-09-26T17:07:49.845174Z",
            "start_waiting": "2021-03-10T11:00:09.636832Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1812f8b45802b8be5ee62fbbb3c3ab82-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 91748,
            "name": "4th of July:D",
            "director": {
                "id": 769861,
                "username": "rainncat",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/63b1a39787f99d6149e4e1cb7cc755f5-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 975.0308630931373,
                        "deviation": 65.62894696966373,
                        "volatility": 0.060026784983209604
                    }
                },
                "ranking": 14.331490463627786,
                "professional": false,
                "ui_class": ""
            },
            "description": "Have fun!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 18960,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 18000,
                "initial_time": 86400,
                "max_time": 864000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6843,
                "name": "bunny and squirrel",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17,
                "icon": "https://user-uploads.online-go.com/4fbbe44d15fe786fd4c4d0d540f0ee05-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-07-04T19:00:00Z",
            "players_start": 5,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 10,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-07-04T19:00:34.240857Z",
            "ended": "2022-09-25T05:53:31.637507Z",
            "start_waiting": "2022-07-04T19:00:33.898312Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4fbbe44d15fe786fd4c4d0d540f0ee05-15.png",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 63443,
            "name": "Fast Tournament",
            "director": {
                "id": 736685,
                "username": "李朗銳",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/b7c6482c7e297b7c47906a1a0bfc23c7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1005.3610697829467,
                        "deviation": 66.82162579107839,
                        "volatility": 0.06001116661169058
                    }
                },
                "ranking": 15.040642201285266,
                "professional": false,
                "ui_class": ""
            },
            "description": "This isa super fast tournament!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "live",
                "pause_on_weekends": false,
                "per_move": 10
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5925,
                "name": "Group for GO",
                "summary": "Don't have a group? No problem, just join this group!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 70,
                "icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-07-23T08:16:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-07-23T08:16:08.231310Z",
            "ended": "2020-07-23T08:20:37.382225Z",
            "start_waiting": "2020-07-23T08:16:07.761101Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ae175eb5d15786b87350b71f278bbb9e-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 106138,
            "name": "September 2023 9x9 A League Correspondence (SDK)",
            "director": {
                "id": 1162525,
                "username": "ants",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/112db88f312658e329b4c4730bb7be3b?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": 17448,
            "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": 11630,
                "name": "SDK Proving Grounds (Single Digit Kyu)",
                "summary": "The Official SDK Proving Grounds. This group spawned from the DDK Proving Grounds (Double Digit Kyu) group, & it's popularity. Here, SDK's can play against other SDK's (or Dan players that haven’t established a solid foothold in Dan land yet). If you get s",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 100,
                "icon": "https://user-uploads.online-go.com/fe22e722b560243ad3845b81f4d4722b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-09-01T19:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 25,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-09-01T19:00:11.512696Z",
            "ended": "2023-09-20T01:29:55.801772Z",
            "start_waiting": "2023-09-01T19:00:11.444210Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/fe22e722b560243ad3845b81f4d4722b-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 126032,
            "name": "Servus Oida Handicap Tournament #11",
            "director": {
                "id": 1285178,
                "username": "VikingKoala",
                "country": "eu",
                "icon": "https://user-uploads.online-go.com/aa9209bd96e427a6ff7e102b893f9af0-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1075.8164406195783,
                        "deviation": 63.52080297059803,
                        "volatility": 0.05970506488565628
                    }
                },
                "ranking": 16.608663525626916,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Handicap McMahon Kyu Player Tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "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": true,
            "group": {
                "id": 5720,
                "name": "Outside Go7",
                "summary": "Die Gruppe für alle, die sonst im Go7 spielen.",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 47,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2025-05-12T21:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 12,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-05-12T17:31:17.126461Z",
            "ended": "2025-10-11T03:59:46.036031Z",
            "start_waiting": "2025-05-12T17:31:16.937276Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 93484,
            "name": "9x9 Mini League 1k-9k #37",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1369.9928085016227,
                        "deviation": 69.31258725461282,
                        "volatility": 0.060203748322655244
                    }
                },
                "ranking": 22.20461203584344,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 9kyu and 1kyu. 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": 697,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-08-21T20:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-08-21T12:19:04.494927Z",
            "ended": "2022-09-08T21:41:09.198642Z",
            "start_waiting": "2022-08-21T12:19:04.291165Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 79188,
            "name": "October Tournament",
            "director": {
                "id": 765440,
                "username": "-Crr-Ake-",
                "country": "gb",
                "icon": "https://secure.gravatar.com/avatar/9d99bf00e6d20984d9593370304f4512?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1600.786020918073,
                        "deviation": 61.22517156646065,
                        "volatility": 0.059964088743382375
                    }
                },
                "ranking": 25.808818894048446,
                "professional": false,
                "ui_class": ""
            },
            "description": "Monthly tournament",
            "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",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 8262,
                "name": "Virtuoso Go Association 🕶",
                "summary": "Group Targets: Participate in our monthly and special event tournaments, Always learn something new, don't be scared to ask to review your games and have fun!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 35,
                "icon": "https://user-uploads.online-go.com/afa15e7b6a8909de8c92a1727546641c-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-10-22T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2021-10-22T17:00:14.462657Z",
            "ended": "2023-03-19T08:47:26.828252Z",
            "start_waiting": "2021-10-22T17:00:06.219067Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/afa15e7b6a8909de8c92a1727546641c-15.png",
            "player_count": 50,
            "ranked": true
        },
        {
            "id": 91796,
            "name": "OGS Elimination Tournament",
            "director": {
                "id": 1026575,
                "username": "quit account",
                "country": "zz",
                "icon": "https://user-uploads.online-go.com/7b8e5b0dfbfa5ffe8e72947f8389fe38-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 682.3591613619444,
                        "deviation": 66.91658065833482,
                        "volatility": 0.060261633514665056
                    }
                },
                "ranking": 6.068955065393972,
                "professional": false,
                "ui_class": ""
            },
            "description": "Please don’t be offensive in this tournament chat or I will disqualify you.\nBeing offensive includes:\n·Game stalling\n·Being rude\n·Chat abuse or saying something inappropriate in chat.\nYou cannot do any of those in any area of this website because the mods are watching you.\n\nNo handicap, 19x19, do not join if you are a ? since this tournament doesn’t allow them to join",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 23520,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 21600,
                "initial_time": 172800,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3,
                "name": "OGS",
                "summary": "An open group for folks' who like OGS!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1779,
                "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-06-28T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-06-28T15:00:13.508232Z",
            "ended": "2022-07-12T14:22:33.731281Z",
            "start_waiting": "2022-06-28T15:00:13.418540Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 109928,
            "name": "9x9 Mini League 1k-9k #97",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1369.9928085016227,
                        "deviation": 69.31258725461282,
                        "volatility": 0.060203748322655244
                    }
                },
                "ranking": 22.20461203584344,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 9kyu and 1kyu. 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": 697,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-11-26T20:05:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-11-25T08:52:41.677674Z",
            "ended": "2023-12-21T02:23:06.995154Z",
            "start_waiting": "2023-11-25T08:52:41.535978Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        }
    ]
}