List all tournaments or create a new tournament.

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

{
    "count": 58821,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=rules&page=2",
    "previous": null,
    "results": [
        {
            "id": 64811,
            "name": "19x19",
            "director": {
                "id": 804629,
                "username": "soy sauce jar and air",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/bbcb3dfe5c7515c1110d2c77da13b24d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1119.6630312470522,
                        "deviation": 71.24487544934807,
                        "volatility": 0.060018119132542104
                    }
                },
                "ranking": 17.53345792254406,
                "professional": false,
                "ui_class": ""
            },
            "description": "please join thx",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 13440,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 1209600
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 17825,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-08-30T16:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-08-28T17:59:36.622818Z",
            "ended": "2020-08-29T13:47:13.853378Z",
            "start_waiting": "2020-08-28T17:59:36.533816Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 49385,
            "name": "tournamet",
            "director": {
                "id": 634737,
                "username": "ნიკოლოზ გუნია1",
                "country": "ge",
                "icon": "https://user-uploads.online-go.com/bf072716ec7027cbbaf8a5bb9f7c1451-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1334.6012666542535,
                        "deviation": 63.64089953071969,
                        "volatility": 0.05985872870885653
                    }
                },
                "ranking": 21.598708938274186,
                "professional": false,
                "ui_class": ""
            },
            "description": "pls join this tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 63,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 300,
                "period_time": 60,
                "periods": 5
            },
            "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": 17825,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2019-06-16T09:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-07-19T10:43:05.598749Z",
            "ended": "2019-07-19T10:48:55.463987Z",
            "start_waiting": "2019-07-19T10:43:05.066929Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 109369,
            "name": "Michigan Annual Thanksgiving weekend go Open",
            "director": {
                "id": 467165,
                "username": "MummRa",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/68359dab5164ddcdffa8ad4ca0699079-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1247.96548084978,
                        "deviation": 64.85752922715939,
                        "volatility": 0.06002061271498367
                    }
                },
                "ranking": 20.044928150690506,
                "professional": false,
                "ui_class": ""
            },
            "description": "2023 Michigan Annual Thanksgiving weekend go Open",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 90,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "live",
                "pause_on_weekends": false,
                "per_move": 90
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 306,
                "name": "Michigan Go Players",
                "summary": "For Players from all over Michigan",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 87,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2023-11-25T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-11-25T17:00:53.641268Z",
            "ended": "2023-11-25T17:11:21.777631Z",
            "start_waiting": "2023-11-25T17:00:53.578816Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 64824,
            "name": "king of the hill",
            "director": {
                "id": 507154,
                "username": "octonary",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/49292767ea85e391d86a7545723e1948-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1481.752126544261,
                        "deviation": 67.41801441929636,
                        "volatility": 0.060122216326598914
                    }
                },
                "ranking": 24.020029625333482,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "please don't lose by time",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "aga",
            "time_per_move": 46,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 45,
                "initial_time": 120,
                "max_time": 360
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2154,
                "name": "ocaml survivors",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 14,
                "icon": "https://user-uploads.online-go.com/feda4b527f4324b99f705a670aefebd4-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-08-29T02:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-08-29T01:54:35.338256Z",
            "ended": "2020-09-04T03:15:00.550785Z",
            "start_waiting": "2020-08-29T01:54:35.046866Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/feda4b527f4324b99f705a670aefebd4-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 132893,
            "name": "1776s open tournaments 0.0009",
            "director": {
                "id": 1436588,
                "username": "Arrow A6 anti-",
                "country": "zz",
                "icon": "https://user-uploads.online-go.com/8670729a0e8d1142fea14d8bd6800517-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 588.6751839572613,
                        "deviation": 80.73457404236709,
                        "volatility": 0.0636275307525229
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "A Tournament series",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 88451,
            "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": 13797,
                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 496,
                "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-10-02T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-10-02T15:00:49.247581Z",
            "ended": "2025-11-03T17:07:30.877386Z",
            "start_waiting": "2025-10-02T15:00:49.149330Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/175d0b2a36101a52411db11b4d096829-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 94353,
            "name": "Friendly Tournament",
            "director": {
                "id": 977709,
                "username": "Yin Xinghao",
                "country": "ca",
                "icon": "https://secure.gravatar.com/avatar/ba358e7f12e80f2f137df9b346094556?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1282.855231784065,
                        "deviation": 252.02079207407004,
                        "volatility": 0.05999967635886122
                    }
                },
                "ranking": 20.6832577677865,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Happy Christmas Break and Have Fun",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 43,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1200,
                "period_time": 30,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 6866,
                "name": "We-Go Education",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 198,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2022-12-24T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2022-12-24T15:00:31.844035Z",
            "ended": "2022-12-24T17:22:20.999891Z",
            "start_waiting": "2022-12-24T15:00:31.456901Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 17,
            "ranked": true
        },
        {
            "id": 80335,
            "name": "noob swser 11",
            "director": {
                "id": 844218,
                "username": "lolroblox",
                "country": "au",
                "icon": "https://user-uploads.online-go.com/898603eb835a4063bf795672200accce-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1319.9778490137012,
                        "deviation": 64.3683573753299,
                        "volatility": 0.05999444409408204
                    }
                },
                "ranking": 21.343651147118212,
                "professional": false,
                "ui_class": ""
            },
            "description": "LOL blah",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "aga",
            "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": 6332,
                "name": "noob_bot",
                "summary": "Play with bots",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 885,
                "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-10-04T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-10-04T09:00:40.458602Z",
            "ended": "2021-11-30T13:04:02.699347Z",
            "start_waiting": "2021-10-04T09:00:40.286876Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 123737,
            "name": "kyu group",
            "director": {
                "id": 1682505,
                "username": "acga.organizer",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/924f4e40079e65dfe872e12bff82b6e4-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2014.592585885649,
                        "deviation": 187.64458520258725,
                        "volatility": 0.05999850212220213
                    }
                },
                "ranking": 31.131518116631177,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "This is kyu group, I will invite every kyu player",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 39,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1200,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 14902,
                "name": "1st California Intercollegiate Go League (CIGL)",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": true,
                "member_count": 25,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2024-12-30T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2024-12-30T17:00:35.297644Z",
            "ended": "2024-12-30T19:36:58.438164Z",
            "start_waiting": "2024-12-30T17:00:35.186984Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 74607,
            "name": "2021 OGS 9x9 Go Cup",
            "director": {
                "id": 720484,
                "username": "JtaoOMG",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/b79de628ffd7e4fe1a54a7c2b38163e5-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1866.3720336200906,
                        "deviation": 64.63461166642907,
                        "volatility": 0.06005553853146774
                    }
                },
                "ranking": 29.36238292017167,
                "professional": false,
                "ui_class": ""
            },
            "description": "2021 OGS 9x9 Go Cup \n\nTournament Director: Liujiang Tao (Johnny)   OGS username: JtaoOMG\n\nFrom now on each year there will be an OSG 9x9 Go Cup. Each year a different time, and of course different go players joining.\n\nTournament Format: Single Elimination.\n\nRound 1: Last 128 \n\nRound 2: Last 64 \n\nRound 3: Last 32 \n\nRound 4: Last 16 \n\nQuarterfinals\n\nSemifinals\n\nFinals\n\nSetting up the game: AGA rules, Byo-Yomi: 30 seconds main time, 10 seconds 3x\n\nTournament time: All rounds are played on June 5th/2021, starting at 10:00 AM PDT. The winner will also be decided on the same day.\n\nUse of AI and cheating: \n\nIf you think your opponent is using AI or is sus of using AI, please report it to the mods before the next round begins. They will review the game and see if your opponent is using AI. \n\nAny reports of using AI after a round is over will not be reviewed or checked, even if the player is using AI.\n\nIf found out a player is using AI, it's an automatic disqualification.\n\nSandbagging OR Featherbagging activities:\n\nPlease report to the mods of sandbagging OR featherbagging activities before the tournament ends. Any type of sandbagging or featherbagging activities will result in a disqualification to that player. \n\nPrizes: The title of \"2021 OGS 9x9 Go Cup Champion\" and 2 free private lessons from me.\n\nQuestions?\nPlease email me at: jtao1231@gmail.com",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 30,
                "period_time": 10,
                "periods": 3
            },
            "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": 1778,
                "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-06-05T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-06-05T17:00:21.941802Z",
            "ended": "2021-06-05T17:29:47.884249Z",
            "start_waiting": "2021-06-05T17:00:21.184577Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png",
            "player_count": 37,
            "ranked": true
        },
        {
            "id": 2841,
            "name": "2nd 9x9 Under 20kyu Competition",
            "director": {
                "id": 52052,
                "username": "ST000MA",
                "country": "rs",
                "icon": "https://secure.gravatar.com/avatar/da4a122c783bf3156553dfebd327d39d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1773.7204734712398,
                        "deviation": 64.7543915421217,
                        "volatility": 0.06233350490466346
                    }
                },
                "ranking": 28.18365079311867,
                "professional": false,
                "ui_class": ""
            },
            "description": "Starts on Wednesday 19.3.2014. at 15:00 UTC. Two moves per day. All players start with 0 points (no McMahon bar).",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "aga",
            "time_per_move": 45120,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 259200,
                "time_increment": 43200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 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": 383,
                "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": 0,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2014-03-21T23:21:59.096066Z",
            "ended": "2014-10-04T19:37:48.849915Z",
            "start_waiting": "2014-03-21T23:21:56.832007Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        }
    ]
}