List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5626
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60019,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5627",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=5625",
    "results": [
        {
            "id": 113943,
            "name": "๐Ÿงญ GPS Expo 361, C Class",
            "director": {
                "id": 1252765,
                "username": "KatNoire",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/d798a462581639c7be0f220400b2b60f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1474.1058774576727,
                        "deviation": 63.78024967595756,
                        "volatility": 0.05995328684214665
                    }
                },
                "ranking": 23.900259960522494,
                "professional": false,
                "ui_class": ""
            },
            "description": "Swiss format. Ranks 17kyu-9kyu welcome, provisional not included. No handicap. Paused on weekends.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 46619,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 43200,
                "initial_time": 432000,
                "max_time": 432000
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 13341,
                "name": "Go Petrologic Survey",
                "summary": "The bedrock of locating liveable landscapes",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 6,
                "icon": "https://user-uploads.online-go.com/cb0c03c5aa13049379d23a6b93516231-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-04-04T10:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slide",
            "min_ranking": 13,
            "max_ranking": 21,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-04-04T10:00:43.606256Z",
            "ended": "2025-03-18T16:35:20.480952Z",
            "start_waiting": "2024-04-04T10:00:43.423594Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/cb0c03c5aa13049379d23a6b93516231-15.png",
            "player_count": 15,
            "ranked": true
        },
        {
            "id": 135315,
            "name": "ะœะฐั‚ั‡ ะณะพ",
            "director": {
                "id": 1690695,
                "username": "Chan Solo",
                "country": "150",
                "icon": "https://user-uploads.online-go.com/e3aef0f37663cf1f0d2a9a7483410978-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1263.6295804649799,
                        "deviation": 67.85312989333552,
                        "volatility": 0.060281538447430894
                    }
                },
                "ranking": 20.333691744312176,
                "professional": false,
                "ui_class": ""
            },
            "description": "ะœะฐั‚ั‡ ะณะพ ัั‚ะพ ั‚ัƒั€ะฝะธั€",
            "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",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 345600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 15695,
                "name": "ั‚ัััƒะดะทะธ",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2026-01-04T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 21,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-01-04T16:00:46.994792Z",
            "ended": null,
            "start_waiting": "2026-01-04T16:00:46.851985Z",
            "board_size": 19,
            "active_round": 3,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 160,
            "name": "holywarrior's tournament of the swift",
            "director": {
                "id": 2888,
                "username": "holywarrior",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/281065e5a9c2a99ec2908564c4abcbf4?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1562.5212201311695,
                        "deviation": 64.26190143848615,
                        "volatility": 0.06003171395128944
                    }
                },
                "ranking": 25.24872575061682,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 259200,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 259200
            },
            "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": 17,
            "max_ranking": 21,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2006-12-02T23:28:00Z",
            "ended": "2007-10-31T23:31:00Z",
            "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": 1639,
            "name": "2. Tournament of the Happy Cat",
            "director": {
                "id": 23723,
                "username": "Tergalon",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/0d301360702c7b84dc5011d415884040?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1599.516864569746,
                        "deviation": 66.00496671217826,
                        "volatility": 0.05994434386147867
                    }
                },
                "ranking": 25.790457525105985,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 604800,
                "max_time": 604800,
                "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": 15,
            "max_ranking": 21,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2012-04-11T19:08:53Z",
            "ended": "2012-04-11T17:08:53Z",
            "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": 3583,
            "name": "test your kiai",
            "director": {
                "id": 61468,
                "username": "orplus",
                "country": "gf",
                "icon": "https://secure.gravatar.com/avatar/3fb96a4b0aa3ee612875f322da12034f?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1407.103511390156,
                        "deviation": 61.92125026532194,
                        "volatility": 0.05962915318746959
                    }
                },
                "ranking": 22.823361849733868,
                "professional": false,
                "ui_class": ""
            },
            "description": "a fun tournament to test kiai and every attacking style. But you can play as you like",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 33,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 300,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 242,
                "name": "la citรฉ du joueur perdu",
                "summary": "A place to learn, test, experiment, invent. Not necessarily in a conventional manner but with respect and joy in order to become stronger and face masters (one day more or less close)",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 52,
                "icon": "https://user-uploads.online-go.com/ab692de4f0fc622aebfcedfaa181fdb0-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2014-12-27T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 21,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2014-12-27T16:59:58.674371Z",
            "ended": "2014-12-27T17:18:10.267895Z",
            "start_waiting": "2014-12-27T16:59:58.491635Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ab692de4f0fc622aebfcedfaa181fdb0-15.png",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 111455,
            "name": "์ž‘์€ ๋ฐ”๋‘‘๋Œ€๊ฒฐ",
            "director": {
                "id": 1163981,
                "username": "15minKiller",
                "country": "_GoT_Targaryen",
                "icon": "https://user-uploads.online-go.com/199617730a1a1a1d2a03ac29f9c6eae2-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1237.7716438781622,
                        "deviation": 64.92983848403033,
                        "volatility": 0.05998430157917521
                    }
                },
                "ranking": 19.85505397093506,
                "professional": false,
                "ui_class": ""
            },
            "description": "๋‘๊ณ  ์‹ถ์œผ์‹  ๋ถ„๋“ค์„ ์œ„ํ•ด ์ค€๋น„ํ–ˆ์Šต๋‹ˆ๋‹ค.\nํ•˜๊ณ  ์‹ถ์œผ์‹  ๋ถ„๋“ค์€ ๋“ค์–ด์™€ ์ฃผ์„ธ์š”.\n์–ด๋ฆฐ์ด๋„ ํ™˜์˜!",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 35,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12187,
                "name": "solar sistem",
                "summary": "์–ด๋ฆฐ์ด ํŠน๋ณ„ ํ™˜์˜!\n์–ด๋ฅธ๋“ค๋„ ํ™˜์˜ํ•ฉ๋‹ˆ๋‹ค.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 4,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2024-01-14T05:31:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 10,
            "max_ranking": 21,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-08-03T13:16:18.567051Z",
            "ended": "2024-08-03T13:29:41.296819Z",
            "start_waiting": "2024-08-03T13:16:18.465912Z",
            "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": 40489,
            "name": "Lions 13 - October 2018",
            "director": {
                "id": 557899,
                "username": "๐Ÿฆ Lvicala ๐Ÿฆ",
                "country": "cz",
                "icon": "https://user-uploads.online-go.com/c3809b0710aca9a2fd14431e2d9e32f2-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1215.5307681865688,
                        "deviation": 63.83387610820817,
                        "volatility": 0.060058613626475424
                    }
                },
                "ranking": 19.435301089469824,
                "professional": false,
                "ui_class": ""
            },
            "description": "13 x 13",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 58560,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": true,
                "time_control": "fischer",
                "initial_time": 86400,
                "max_time": 259200,
                "time_increment": 57600,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2773,
                "name": "Lions",
                "summary": "for all fighters like lion :)",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8,
                "icon": "https://user-uploads.online-go.com/c3809b0710aca9a2fd14431e2d9e32f2-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-10-01T12:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 21,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-10-01T12:00:51.807390Z",
            "ended": "2019-02-23T16:17:33.157045Z",
            "start_waiting": "2018-10-01T12:00:51.254087Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/c3809b0710aca9a2fd14431e2d9e32f2-15.png",
            "player_count": 13,
            "ranked": true
        },
        {
            "id": 35943,
            "name": "Trainer",
            "director": {
                "id": 460454,
                "username": "Khadziya",
                "country": "id",
                "icon": "https://user-uploads.online-go.com/1241f82b383e0c9aa043890627977f2b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1513.0748793055748,
                        "deviation": 64.02069240422253,
                        "volatility": 0.05999825962518689
                    }
                },
                "ranking": 24.504296774669363,
                "professional": false,
                "ui_class": ""
            },
            "description": "Enjoy",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 131520,
            "time_control_parameters": {
                "period_time": 129600,
                "main_time": 172800,
                "system": "byoyomi",
                "pause_on_weekends": true,
                "time_control": "byoyomi",
                "periods": 5,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 2170,
                "name": "Serenity",
                "summary": "When wisdom comes and ambitions go away, only pure enjoyment of the game remains.",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 48,
                "icon": "https://user-uploads.online-go.com/296c487fa334861b517b0bf1928b4ac9-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-04-18T02:00:00Z",
            "players_start": 32,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 21,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-04-16T03:05:46.881203Z",
            "ended": "2019-05-15T20:07:57.752771Z",
            "start_waiting": "2018-04-16T03:05:45.538567Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/296c487fa334861b517b0bf1928b4ac9-15.png",
            "player_count": 25,
            "ranked": true
        },
        {
            "id": 45050,
            "name": "Samara Go group turnier",
            "director": {
                "id": 590073,
                "username": "Argon74",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/1bc820b1aa57bf8704b7384c61ca1f21-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1593.5394326099945,
                        "deviation": 68.43806362866397,
                        "volatility": 0.06003528270761761
                    }
                },
                "ranking": 25.703783380566065,
                "professional": false,
                "ui_class": ""
            },
            "description": "ะŸั€ะพะฑะฝั‹ะน ั‚ัƒั€ะฝะธั€ ะณั€ัƒะฟะฟั‹",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3291,
                "name": "Samara Go Group",
                "summary": "https://vk.com/@weiqi_school-razbor-dzhosek-uglovyh-debutov\n\nhttps://online-go.com/puzzle/181",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 5,
                "icon": "https://user-uploads.online-go.com/2093cf1b75c8807cd7cdd0395ee5a39b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-01-27T16:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 17,
            "max_ranking": 21,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2019-01-27T16:44:51.753765Z",
            "ended": "2019-02-01T21:29:17.910213Z",
            "start_waiting": "2019-01-27T16:44:51.613444Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/2093cf1b75c8807cd7cdd0395ee5a39b-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 122291,
            "name": "Having a little fun here โ€ฆ. again",
            "director": {
                "id": 62763,
                "username": "saxmaam",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/ecaadfea6552bbc99c01bdabdedfecf1-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 900.5601301639981,
                        "deviation": 66.8050633981357,
                        "volatility": 0.06048614065516224
                    }
                },
                "ranking": 12.49217230290658,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "something fun โ€ฆ",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": 7228,
                "name": "DDK Proving Grounds (Double Digit Kyu)",
                "summary": "A place for DDK's to play against other DDK's without fear of SDK's trying to hop in. We do B League (25k-18k) & A League (17k-10k) tournaments monthly.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 651,
                "icon": "https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-11-17T12:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 15,
            "max_ranking": 21,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2024-11-21T17:09:33.251226Z",
            "ended": "2026-01-15T12:50:50.609803Z",
            "start_waiting": "2024-11-21T17:09:33.136389Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-15.png",
            "player_count": 4,
            "ranked": true
        }
    ]
}