List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=490
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60891,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=491",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=489",
    "results": [
        {
            "id": 79390,
            "name": "TOURNAMENT",
            "director": {
                "id": 1035195,
                "username": "SECRET SOLD 0883",
                "country": "au",
                "icon": "https://secure.gravatar.com/avatar/27c06f0addf96d0a389a9aedc69e19e8?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 662.6463996212356,
                        "deviation": 81.61936711942215,
                        "volatility": 0.059985348352244984
                    }
                },
                "ranking": 5.390321270292009,
                "professional": false,
                "ui_class": ""
            },
            "description": "HI MY NAME IS Isaac Chen",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 87360,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 86400,
                "initial_time": 86400,
                "max_time": 604800
            },
            "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": 1801,
                "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-08-28T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-08-29T08:10:03.543194Z",
            "ended": "2021-09-24T17:49:24.538188Z",
            "start_waiting": "2021-08-29T08:10:03.398785Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 45306,
            "name": "Beginner 13x13 Double Elimination!",
            "director": {
                "id": 584205,
                "username": "sergeantpixelz",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/075b3a61ee5729b17eaf6c0f7a759db8?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 879.1282205761283,
                        "deviation": 61.95045302932998,
                        "volatility": 0.060038049253757136
                    }
                },
                "ranking": 11.934577268927214,
                "professional": false,
                "ui_class": ""
            },
            "description": "A 13x13 double elimination tournament for beginners (25k-15k).",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88320,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 172800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 43,
                "name": "Kyu Level Study Group",
                "summary": "A group for kyu level players! Join, play tournaments, and have fun. Thanks for being a part of our community!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8965,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2019-02-09T15:00:00Z",
            "players_start": 8,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 15,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-02-09T15:00:06.768633Z",
            "ended": "2019-07-12T11:30:46.178436Z",
            "start_waiting": "2019-02-09T15:00:04.509521Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 15,
            "ranked": true
        },
        {
            "id": 78812,
            "name": "GO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!",
            "director": {
                "id": 910029,
                "username": "yeong ha ko",
                "country": "fr",
                "icon": "https://user-uploads.online-go.com/0456aecb47ecd3a87457e7b4e1acc1a9-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1732.4568994457843,
                        "deviation": 71.3527930233796,
                        "volatility": 0.06075833324406251
                    }
                },
                "ranking": 27.638729220033547,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hi, please, won",
            "schedule": null,
            "title": null,
            "tournament_type": "s_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": 10,
                "max_time": 10
            },
            "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": 18131,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-08-28T09:30:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-08-28T09:30:07.421159Z",
            "ended": "2021-08-28T09:51:42.572354Z",
            "start_waiting": "2021-08-28T09:30:05.895196Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 21,
            "ranked": true
        },
        {
            "id": 78238,
            "name": "Bot vs Human 20210801 0200",
            "director": {
                "id": 1031342,
                "username": "NewHand_Bot",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/231a943c0a9781902371549b12a05456?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1975.6918383935774,
                        "deviation": 67.62205433700483,
                        "volatility": 0.06021274884977886
                    }
                },
                "ranking": 30.680131328159977,
                "professional": false,
                "ui_class": "bot"
            },
            "description": "This tournament allows Bot accounts to participate.\n\nAutomatic handicap.",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 631680,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 604800,
                "initial_time": 2419200,
                "max_time": 2419200
            },
            "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": 888,
                "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-08-01T02:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-08-01T02:00:18.852719Z",
            "ended": "2021-08-12T16:45:38.841887Z",
            "start_waiting": "2021-08-01T02:00:18.770600Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 78241,
            "name": "Gospodjinci",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 769.0975600653927,
                        "deviation": 65.01454445024554,
                        "volatility": 0.05993770725600263
                    }
                },
                "ranking": 8.83912293002885,
                "professional": false,
                "ui_class": ""
            },
            "description": "9x9 board",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31680,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 28800,
                "initial_time": 259200,
                "max_time": 345600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 27,
                "name": "Serbian Go Players",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 82,
                "icon": "https://user-uploads.online-go.com/a4c7afeabd5c537f0916589346c203bb-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-07-31T16:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 18,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-07-31T16:00:54.011190Z",
            "ended": "2021-08-15T14:40:56.493667Z",
            "start_waiting": "2021-07-31T16:00:53.741625Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a4c7afeabd5c537f0916589346c203bb-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 78117,
            "name": "1234567891011121314151617181920",
            "director": {
                "id": 1025596,
                "username": "围棋小白白",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/716e1e73a7c9cb842275fe053e0250f1?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 999.3860966661631,
                        "deviation": 90.70465667748752,
                        "volatility": 0.06001307833035169
                    }
                },
                "ranking": 14.902648703121073,
                "professional": false,
                "ui_class": ""
            },
            "description": "123456",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 15360,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 86400,
                "max_time": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 43,
                "name": "Kyu Level Study Group",
                "summary": "A group for kyu level players! Join, play tournaments, and have fun. Thanks for being a part of our community!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8965,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-07-28T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 15,
            "max_ranking": 19,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-08-03T19:28:13.818967Z",
            "ended": "2021-08-16T16:17:38.115601Z",
            "start_waiting": "2021-08-03T19:28:13.714258Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 108671,
            "name": "9x9 Mini League 10k-25k #189",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1436.6763223064163,
                        "deviation": 73.64403890814872,
                        "volatility": 0.06029187474891314
                    }
                },
                "ranking": 23.304858514505188,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 25kyu and 10kyu. 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": 715,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-10-29T20:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-10-23T21:43:08.163819Z",
            "ended": "2023-11-02T14:09:35.582318Z",
            "start_waiting": "2023-10-23T21:43:07.962686Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 136994,
            "name": "Correspondence 19x19 RoundRobin 2026-02-03 19:01",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Site-wide Tournament",
            "schedule": {
                "id": 6,
                "name": "Correspondence 19x19 RoundRobin",
                "rrule": "DTSTART:20260831T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T05:58:31.027016Z",
                "last_run": "2026-08-31T19:00:32.133942Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "pause_on_weekends": true,
                    "max_time": 432000,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slaughter",
                "subsequent_pairing_method": "slaughter",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 10
                },
                "next_run": "2026-09-03T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "pause_on_weekends": true,
                "max_time": 432000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2026-02-03T19:01:14.082109Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-02-03T19:01:46.379640Z",
            "ended": null,
            "start_waiting": "2026-02-03T19:01:45.620429Z",
            "board_size": 19,
            "active_round": 1,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 78242,
            "name": "Mala Bosna",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 769.0975600653927,
                        "deviation": 65.01454445024554,
                        "volatility": 0.05993770725600263
                    }
                },
                "ranking": 8.83912293002885,
                "professional": false,
                "ui_class": ""
            },
            "description": "13x13",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 38880,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 36000,
                "initial_time": 259200,
                "max_time": 345600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 27,
                "name": "Serbian Go Players",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 82,
                "icon": "https://user-uploads.online-go.com/a4c7afeabd5c537f0916589346c203bb-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-07-31T17:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 18,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-07-31T17:00:56.058469Z",
            "ended": "2021-08-17T16:27:36.433052Z",
            "start_waiting": "2021-07-31T17:00:55.856510Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a4c7afeabd5c537f0916589346c203bb-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 142884,
            "name": "Good luck have fun",
            "director": {
                "id": 2003964,
                "username": "Cat Kid comic club",
                "country": "vn",
                "icon": "https://user-uploads.online-go.com/a32a5b90d9b34ea44031a76a711c44be-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 356.2697935366614,
                        "deviation": 81.7376206540949,
                        "volatility": 0.06002765631151191
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "Alway have a nice day",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "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": 16420,
                "name": "lop covay",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 5,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2026-08-07T09:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-08-06T04:34:17.410061Z",
            "ended": null,
            "start_waiting": "2026-08-06T04:34:17.315861Z",
            "board_size": 19,
            "active_round": 2,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        }
    ]
}