List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5495
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60025,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5496",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5494",
    "results": [
        {
            "id": 1604,
            "name": "joloo's mini-tournament",
            "director": {
                "id": 40282,
                "username": "joloo",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/5a85aa865a84319580e60d782a19f035?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1921.6798908474775,
                        "deviation": 65.61509525460883,
                        "volatility": 0.05993807748872319
                    }
                },
                "ranking": 30.038439064382736,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 1728000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 9,
            "max_ranking": 26,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-03-31T07:45:53Z",
            "ended": "2012-03-31T05:45:53Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 1569,
            "name": "The 1st Usagi Cup",
            "director": {
                "id": 26887,
                "username": "usagi4",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/63bdc64870e06385c389cf1f19be8672?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2058.01217291606,
                        "deviation": 64.6778163314401,
                        "volatility": 0.05999416934547066
                    }
                },
                "ranking": 31.62515871563829,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 345600,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": false,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 9,
            "max_ranking": 26,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2011-08-17T16:08:25Z",
            "ended": "2018-03-19T21:03:18.412850Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 519,
            "name": "2nd Oude Geuze Cup",
            "director": {
                "id": 430,
                "username": "rottenhat",
                "country": "ie",
                "icon": "https://user-uploads.online-go.com/39625f5d6aa9484f8212327bf6eb9290-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1781.280091736795,
                        "deviation": 62.057718815549876,
                        "volatility": 0.05995437910309559
                    }
                },
                "ranking": 28.28210671368644,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 432000,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 19,
            "max_ranking": 26,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2008-06-27T22:35:18Z",
            "ended": "2008-06-27T20:35:18Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 76783,
            "name": "Go Basic",
            "director": {
                "id": 654168,
                "username": "Melovy",
                "country": "sg",
                "icon": "https://user-uploads.online-go.com/c279d2a10883516ad8f855553763576f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1604.2274745860072,
                        "deviation": 107.58418581163765,
                        "volatility": 0.05976481318080775
                    }
                },
                "ranking": 25.858534555554265,
                "professional": false,
                "ui_class": ""
            },
            "description": "wiiiiiiiiiiiiiiiiiiiiiiinnnnnnnnnnnnn",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "main_time": 0,
                "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": 18025,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-06-27T03:17:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 26,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-06-27T03:17:03.937564Z",
            "ended": "2021-06-27T03:23:03.550168Z",
            "start_waiting": "2021-06-27T03:17:03.847830Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 113557,
            "name": "4k - 8k correspondence",
            "director": {
                "id": 1403550,
                "username": "MyraCaller",
                "country": "ma",
                "icon": "https://user-uploads.online-go.com/eff060a9162807397a824ff127709e20-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1430.5457191588548,
                        "deviation": 63.03035501295459,
                        "volatility": 0.059963956066787054
                    }
                },
                "ranking": 23.20586117345916,
                "professional": false,
                "ui_class": ""
            },
            "description": "enjoy!!!",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 45251,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 43200,
                "initial_time": 259200,
                "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": 101,
                "icon": "https://user-uploads.online-go.com/fe22e722b560243ad3845b81f4d4722b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-05-05T09:00:00Z",
            "players_start": 10,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 22,
            "max_ranking": 26,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-04-26T18:05:31.572410Z",
            "ended": "2024-07-18T15:46:51.815970Z",
            "start_waiting": "2024-04-26T18:05:30.757555Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/fe22e722b560243ad3845b81f4d4722b-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 100831,
            "name": "Mid-speed Match (9x9) #2",
            "director": {
                "id": 1303195,
                "username": "eaglejoy",
                "country": "001",
                "icon": "https://user-uploads.online-go.com/d4b7c1948ffe6ed5f80f075d40a13547-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1814.5278273894323,
                        "deviation": 67.29577928717005,
                        "volatility": 0.05999029476123887
                    }
                },
                "ranking": 28.710220246475455,
                "professional": false,
                "ui_class": ""
            },
            "description": "<h2>Additional rules</h2>\n\n1. Delaying tactics are not allowed.\n\n2. AI/robot is not allowed.\n\n3. The Rank Restriction based on the Correspondence 9x9 rank rather than the overall rank. And 4 kyu and below means not higher than 3.1 kyu.\n<h2>Attention</h2>\n<h3>Speed and Time-out</h3>\nKeep in mind that the avg speed of one game is 2.5 moves per 24 hrs.\nSince the Round Robin will activate several matches at the same time, for a match with five players, the avg speed is 10 moves per 24hrs.\nTo avoid losing by time-out, the safe way is to play fast than the avg speed (and consider the time zone issue).\nLoss by time out will affect your valuation in this Match system -such as disqualification and/or demotion to a lower level.\n<h2>Tips</h2>\n<ul>\n<li>If you are not familiar with Absolute time control, you may do some practice in a friendship game (ranked or unranked). </li>\n<li>Use <strong>Plan Conditional Moves</strong> to speed up</li>\n<li>Communicate with your opponent if necessary.</li>\n</ul>\n\n<hr>\n\n<ul>\n\n<li><a href=\"https://online-go.com/tournament/100700\">Previous tournament</a></li>\n\n<li><a href=\"https://online-go.com/tournament/100974\">Next tournament</a></li>\n\n</ul>",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 21333,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12936,
                "name": "Mid-speed",
                "summary": "Middle speed matches, not so hurry, not so slow.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 21,
                "icon": "https://user-uploads.online-go.com/beac7517f2a38056032aeec2064d3ace-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-03-20T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 18,
            "max_ranking": 26,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-03-13T12:15:25.099361Z",
            "ended": "2023-03-28T09:57:45.935711Z",
            "start_waiting": "2023-03-13T12:15:24.863039Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/beac7517f2a38056032aeec2064d3ace-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 2280,
            "name": "8kyu-4kyu Double Round Even Tournament",
            "director": {
                "id": 50622,
                "username": "nhm0901",
                "country": "vn",
                "icon": "https://secure.gravatar.com/avatar/d2649fcac0e337d95904b71c15e4fb01?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2381.786376500422,
                        "deviation": 75.6484649536419,
                        "volatility": 0.05998325041363179
                    }
                },
                "ranking": 35.00761059065794,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 21,
            "max_ranking": 26,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-07-29T10:09:02Z",
            "ended": "2014-01-04T09:14:43.854666Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 2705,
            "name": "Hartung-Jänner-Januar-Turnierstar(t)",
            "director": {
                "id": 20675,
                "username": "RaikB",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/3d9fb2e977ccdddcc8efeb8fc6efc3ae?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1780.665751010124,
                        "deviation": 65.40966971956041,
                        "volatility": 0.0596596409427389
                    }
                },
                "ranking": 28.274121197571755,
                "professional": false,
                "ui_class": ""
            },
            "description": "Im eisigen Januar beginnend, in das Jahr hinein verlaufend, in freundlichen Begegnungen Spaß am Spiel erleben.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "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": false,
            "group": {
                "id": 23,
                "name": "German Group",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 357,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 18,
            "max_ranking": 26,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2014-01-10T09:17:34.104739Z",
            "ended": "2014-05-02T23:43:43.200992Z",
            "start_waiting": "2014-01-10T09:17:33.253776Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 1417,
            "name": "The secretive secret tournament of ultimate sworn secrecy.",
            "director": {
                "id": 10670,
                "username": "boredom",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/885cf176491879164a14993fb1af835c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1822.8504864288059,
                        "deviation": 64.53786161281363,
                        "volatility": 0.05990507402656149
                    }
                },
                "ranking": 28.816159126829287,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 16,
            "max_ranking": 26,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2011-07-01T17:38:29Z",
            "ended": "2011-07-01T15:38:29Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 1116,
            "name": "Danubian Spring Tournament no.2",
            "director": {
                "id": 4048,
                "username": "kavias",
                "country": "ro",
                "icon": "https://user-uploads.online-go.com/a4ac4865b1a811e9b33da3df4ea12bde-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1556.9713723310451,
                        "deviation": 65.52788389017003,
                        "volatility": 0.05983618268848663
                    }
                },
                "ranking": 25.166353949231357,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 432000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 20,
            "max_ranking": 26,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2010-05-22T15:52:46Z",
            "ended": "2010-05-22T13:52:46Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        }
    ]
}