List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=is_open&page=721
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59097,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=is_open&page=722",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=is_open&page=720",
    "results": [
        {
            "id": 49235,
            "name": "Training Ground Class 6 July 2019",
            "director": {
                "id": 87790,
                "username": "WiseBear",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/87e96797186d0c4042434c29195d8f12-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1104.0021061102002,
                        "deviation": 62.08308547890164,
                        "volatility": 0.06028822213904829
                    }
                },
                "ranking": 17.207368885691388,
                "professional": false,
                "ui_class": ""
            },
            "description": "If you want to be stronger, then you should often play with those who are a little stronger than you. Training Grounds tournaments provide you with this opportunity.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3516,
                "name": "Game Of Stones",
                "summary": "This group is no longer operated.",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 143,
                "icon": "https://user-uploads.online-go.com/439f945317b077e50df083e0d0f09ce5-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-07-10T02:00:00Z",
            "players_start": 6,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 16,
            "max_ranking": 25,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2019-07-10T02:00:06.107482Z",
            "ended": "2020-06-23T20:44:01.916019Z",
            "start_waiting": "2019-07-10T02:00:04.434166Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/439f945317b077e50df083e0d0f09ce5-15.png",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 96333,
            "name": "Live 19x19 Swiss Tournament 2022-11-02 12:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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 Sitewide Tournament",
            "schedule": {
                "id": 4,
                "name": "Live 19x19 Swiss Tournament",
                "rrule": "DTSTART:20260119T120000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:30:39.250689Z",
                "last_run": "2026-01-19T12:00:26.803918Z",
                "lead_time_seconds": 1800,
                "tournament_type": "swiss",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 30,
                    "main_time": 600,
                    "periods": 3
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 6,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 40
                },
                "next_run": "2026-01-19T16:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 600,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2022-11-02T12:30:11.800922Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2022-11-02T12:30:13.047519Z",
            "ended": "2022-11-02T14:04:18.554108Z",
            "start_waiting": "2022-11-02T12:30:12.900114Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 68561,
            "name": "Blitz 19x19 Elimination Tournament 2020-12-04 09:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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 Sitewide Tournament",
            "schedule": {
                "id": 1,
                "name": "Blitz 19x19 Elimination Tournament",
                "rrule": "DTSTART:20260119T090000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:06:42.010011Z",
                "last_run": "2026-01-19T09:00:27.042719Z",
                "lead_time_seconds": 1800,
                "tournament_type": "elimination",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 10,
                    "main_time": 120,
                    "periods": 5
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slide",
                "subsequent_pairing_method": "slide",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 100
                },
                "next_run": "2026-01-19T13:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 11,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 10,
                "main_time": 120,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-12-04T09:30:08.534323Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-12-04T09:30:10.630423Z",
            "ended": "2020-12-04T10:10:05.852397Z",
            "start_waiting": "2020-12-04T09:30:10.152150Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 70788,
            "name": "Nigger",
            "director": {
                "id": 751877,
                "username": "iandains11",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/04081d4e0a216545eb152bd037e59f13-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1283.2633767098341,
                        "deviation": 92.75499760495408,
                        "volatility": 0.060024856000995684
                    }
                },
                "ranking": 20.690621850709217,
                "professional": false,
                "ui_class": ""
            },
            "description": "niger",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 30,
                "initial_time": 120,
                "max_time": 300
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4993,
                "name": "Hardee's",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-01-31T04:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2021-01-31T02:22:58.602209Z",
            "ended": "2021-01-31T03:09:47.904054Z",
            "start_waiting": "2021-01-31T02:22:58.481784Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 63151,
            "name": "Fast Correspondence DDK",
            "director": {
                "id": 462047,
                "username": "Ironwoman",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/aee7ad03e664195abfa19fe98694fb0b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1381.0716048691506,
                        "deviation": 63.93915623930401,
                        "volatility": 0.06002071227681594
                    }
                },
                "ranking": 22.391067519132616,
                "professional": false,
                "ui_class": ""
            },
            "description": "Please, avoid delaying your games using the vacation feature.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 29760,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 28800,
                "initial_time": 86400,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 508,
                "name": "Fast Correspondence",
                "summary": "Tournaments for people who like to play quick correspondence games.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 804,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-07-21T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-07-21T03:43:14.268737Z",
            "ended": "2020-09-07T12:32:15.399490Z",
            "start_waiting": "2020-07-21T03:43:13.327008Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 55887,
            "name": "2nd Afra Tournament",
            "director": {
                "id": 550024,
                "username": "Gargantuar",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/1029565026e3189a3ec6d705c5150152?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1539.1670250873235,
                        "deviation": 61.23300344486674,
                        "volatility": 0.05996522489317626
                    }
                },
                "ranking": 24.900102813699657,
                "professional": false,
                "ui_class": ""
            },
            "description": "Endlich findet das 2. Afra-Turnier statt. Jeder gegen jeden und diesmal mit weniger Zeit auf der Uhr.\n\nがんばってください!\n화이팅!",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 88320,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 172800,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2631,
                "name": "Freiheit 13",
                "summary": "inofficial and private group for (former) staff and students of our school - people unaffiliated with our school cannot join",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 42,
                "icon": "https://user-uploads.online-go.com/065648a4a48bcba4f8ca0a094338606d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-01-26T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2020-01-26T23:00:57.535063Z",
            "ended": "2020-06-26T09:26:56.583229Z",
            "start_waiting": "2020-01-26T23:00:55.532868Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/065648a4a48bcba4f8ca0a094338606d-15.png",
            "player_count": 11,
            "ranked": true
        },
        {
            "id": 63133,
            "name": "Blitz 19x19 Elimination Tournament 2020-07-15 05:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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 Sitewide Tournament",
            "schedule": {
                "id": 1,
                "name": "Blitz 19x19 Elimination Tournament",
                "rrule": "DTSTART:20260119T090000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:06:42.010011Z",
                "last_run": "2026-01-19T09:00:27.042719Z",
                "lead_time_seconds": 1800,
                "tournament_type": "elimination",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 10,
                    "main_time": 120,
                    "periods": 5
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slide",
                "subsequent_pairing_method": "slide",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 100
                },
                "next_run": "2026-01-19T13:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 11,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 10,
                "main_time": 120,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-07-15T05:30:58.294695Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-07-15T05:30:59.769689Z",
            "ended": "2020-07-15T06:19:33.983593Z",
            "start_waiting": "2020-07-15T05:30:59.482515Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 59925,
            "name": "Selfplay 14",
            "director": {
                "id": 768720,
                "username": "katrain-balanced",
                "country": "eu",
                "icon": "https://user-uploads.online-go.com/20c0a785f436684c0994dee72a1c6268-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2344.620612354147,
                        "deviation": 68.35543689016646,
                        "volatility": 0.060163292710646986
                    }
                },
                "ranking": 34.643526339655004,
                "professional": false,
                "ui_class": "bot"
            },
            "description": "Selfplay 14",
            "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",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 5460,
                "name": "KaTrain",
                "summary": "",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 15,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-05-01T14:05:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-05-01T14:05:26.807368Z",
            "ended": "2020-05-18T13:01:15.024002Z",
            "start_waiting": "2020-05-01T14:05:24.426476Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 60434,
            "name": "9x9 test",
            "director": {
                "id": 779497,
                "username": "mq4ever",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/7a6e5aef67d1321bc32372ef280f902a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2103.6358045665147,
                        "deviation": 64.49439634879828,
                        "volatility": 0.06001248852502255
                    }
                },
                "ranking": 32.132760220603345,
                "professional": false,
                "ui_class": "supporter aga"
            },
            "description": "test 9x9",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "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": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 446,
                "name": "AGA (American Go Association)",
                "summary": "This is the official meetup place for the 2021 e-Go Congress, an online event organized by the AGA (American Go Association). Join us and say hi!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1531,
                "icon": "https://user-uploads.online-go.com/9410cf16aa1994fed5749fa6372ec1b5-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-05-12T22:10:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2020-05-19T03:21:59.042545Z",
            "ended": "2020-05-19T03:29:29.002372Z",
            "start_waiting": "2020-05-19T03:21:58.496072Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9410cf16aa1994fed5749fa6372ec1b5-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 53691,
            "name": "1ST 9x9 ROLAND GORROS: TABLE G",
            "director": {
                "id": 48251,
                "username": "Mitsunari",
                "country": "fr",
                "icon": "https://user-uploads.online-go.com/255f362392d68eb9c9f4cacbae4ff907-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1632.1054927731147,
                        "deviation": 65.90514353002129,
                        "volatility": 0.060318543428522796
                    }
                },
                "ranking": 26.257376140181222,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hello,<p>\nThis is the table G of the 1st 9x9 Roland GOrros.\nThis table is a single elimination tournament. The winner will be qualified to the final table (single elimination too).<p>\nEnjoy :)",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 59520,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 57600,
                "initial_time": 172800,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2514,
                "name": "Continental and World Go Cups Group",
                "summary": "You want to become World Champion or a Continental champion? Join us :)",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 523,
                "icon": "https://user-uploads.online-go.com/c1c2b263d212f80b7dfe72721f68c8e4-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-05-31T08:00:00Z",
            "players_start": 32,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-06-01T23:11:56.721392Z",
            "ended": "2020-10-26T00:08:45.928661Z",
            "start_waiting": "2020-06-01T23:11:55.291120Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/c1c2b263d212f80b7dfe72721f68c8e4-15.png",
            "player_count": 32,
            "ranked": true
        }
    ]
}