List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=1456
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60738,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=1457",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-max_ranking&page=1455",
    "results": [
        {
            "id": 100465,
            "name": "JORNADA 4 DE ENTRENAMIENTO DE GO KANIK PRIMAVERA 2023",
            "director": {
                "id": 798920,
                "username": "vaik.kanik",
                "country": "mx",
                "icon": "https://user-uploads.online-go.com/2d6b90dc29878481490e8286eaaeb49f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 938.0170909082706,
                        "deviation": 60.21036349786097,
                        "volatility": 0.05972651488465604
                    }
                },
                "ranking": 13.435563343186688,
                "professional": false,
                "ui_class": ""
            },
            "description": "“No se llega a la victoria con kilómetros, sino con centímetros. Gana un poco ahora, mantén el terreno ganado y luego gana un poco más.”\nLOUIS L’AMOUR.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 37,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 420,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4974,
                "name": "Taller de Go-Biblioteca de México",
                "summary": "Torneos todos los sábados a las 17:30 hrs (Ciudad de México)",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 236,
                "icon": "https://user-uploads.online-go.com/319cd1b5d5788d57faf6978158a6f97d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-02-25T02:35:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "invite",
            "started": "2023-02-25T02:35:17.668247Z",
            "ended": "2023-02-25T03:18:00.063405Z",
            "start_waiting": "2023-02-25T02:35:17.539624Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/319cd1b5d5788d57faf6978158a6f97d-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 111185,
            "name": "銀河之路 圍棋世界大賽",
            "director": {
                "id": 1021027,
                "username": "Ming Lau",
                "country": "hk",
                "icon": "https://user-uploads.online-go.com/15c4b1e401f17e6fd1b7fd9ef6ff7921-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 955.9118659419,
                        "deviation": 82.31133769089932,
                        "volatility": 0.0599985457683246
                    }
                },
                "ranking": 13.873041601136496,
                "professional": false,
                "ui_class": ""
            },
            "description": "World competition!\n\n說明:世紀賽",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 4787,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "total_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 13697,
                "name": "𝓞𝓷𝓵𝓲𝓷𝓮 𝓖𝓸 𝓣𝓸𝓾𝓻𝓷𝓪𝓶𝓮𝓷𝓽",
                "summary": "Dear members: Thank you for your support! Our guild needs the help of more people to make the guild prosper. I hope everyone can contribute, join the guild, and recommend your friends to this big family.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 128,
                "icon": "https://user-uploads.online-go.com/0d6ac99b94f3598fc46abd7588a3f568-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-01-07T07:00:00Z",
            "players_start": 5,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2024-01-07T07:00:48.483507Z",
            "ended": "2024-02-16T05:59:28.340641Z",
            "start_waiting": "2024-01-07T07:00:48.306408Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/0d6ac99b94f3598fc46abd7588a3f568-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 103761,
            "name": "6/3 下午2:30 阿躁盃(會直播進行)",
            "director": {
                "id": 1183558,
                "username": "churaaze",
                "country": "tw",
                "icon": "https://secure.gravatar.com/avatar/40b2a069c6bdf8ab75a81d5792126cfd?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2277.0271039242225,
                        "deviation": 77.49367826793734,
                        "volatility": 0.06000042965351029
                    }
                },
                "ranking": 33.966321411254036,
                "professional": false,
                "ui_class": ""
            },
            "description": "6/2是阿躁的生日\n前3名送阿躁LINE貼圖*1(兩款自選)",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 11,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "blitz",
                "pause_on_weekends": false,
                "main_time": 120,
                "period_time": 10,
                "periods": 7
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 12202,
                "name": "ChuRaazeYoutube",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 76,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2023-06-03T06:30:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-06-03T06:30:59.719217Z",
            "ended": "2023-06-03T08:28:22.276049Z",
            "start_waiting": "2023-06-03T06:30:59.443813Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 22,
            "ranked": true
        },
        {
            "id": 102731,
            "name": "陳灝 駱皓希",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "陳灝\n駱皓希",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 29,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 1200,
                "period_time": 20,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7531,
                "name": "傳碁 C班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 87,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2023-04-30T08:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2023-04-30T07:48:29.872456Z",
            "ended": "2023-04-30T08:44:37.096043Z",
            "start_waiting": "2023-04-30T07:48:29.818235Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 130075,
            "name": "Handicap Arena 2025 - 055",
            "director": {
                "id": 526987,
                "username": "Gia",
                "country": "gr",
                "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1112.5351853391176,
                        "deviation": 64.10717799117754,
                        "volatility": 0.06006699813310387
                    }
                },
                "ranking": 17.385612455787367,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Part of an arena tournament - 2025. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as it is full (10 players).",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "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": 13655,
                "name": "Handicap Arena",
                "summary": "Organising arena-type handicap correspondence tournaments.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 108,
                "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-07-09T17:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-07-08T19:08:53.699966Z",
            "ended": "2026-01-18T02:46:06.255154Z",
            "start_waiting": "2025-07-08T19:08:53.121954Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 102243,
            "name": "JORNADA 5 DE ENTRENAMIENTO DE GO BÁSICO  KANIK PRIMAVERA 2023",
            "director": {
                "id": 798920,
                "username": "vaik.kanik",
                "country": "mx",
                "icon": "https://user-uploads.online-go.com/2d6b90dc29878481490e8286eaaeb49f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 938.0170909082706,
                        "deviation": 60.21036349786097,
                        "volatility": 0.05972651488465604
                    }
                },
                "ranking": 13.435563343186688,
                "professional": false,
                "ui_class": ""
            },
            "description": "No se llega a la victoria con kilómetros, sino con centímetros. Gane un poco ahora, mantenga el terreno ganado y luego gane un poco más.\nLOUIS L’AMOUR.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 47,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 480,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4974,
                "name": "Taller de Go-Biblioteca de México",
                "summary": "Torneos todos los sábados a las 17:30 hrs (Ciudad de México)",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 236,
                "icon": "https://user-uploads.online-go.com/319cd1b5d5788d57faf6978158a6f97d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-04-16T00:35:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "invite",
            "started": "2023-04-16T00:35:27.522971Z",
            "ended": "2023-04-16T01:15:13.387893Z",
            "start_waiting": "2023-04-16T00:35:27.423700Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/319cd1b5d5788d57faf6978158a6f97d-15.png",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 136188,
            "name": "✨🎉 Go Magic 2026 Celebration 🎉✨",
            "director": {
                "id": 901303,
                "username": "Muff0",
                "country": "eu",
                "icon": "https://user-uploads.online-go.com/e04175e5267b560bb2448bb1867a73e7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1729.5504160206208,
                        "deviation": 62.910145386376016,
                        "volatility": 0.059871385576140676
                    }
                },
                "ranking": 27.599858645266146,
                "professional": false,
                "ui_class": ""
            },
            "description": "🎉A new rapid tournament to start the new year with Go Magic!✨\n\nAll prizes are Go Magic Gift Cards\n\n\n🏆Prizes:\n\n1st Place: $300   \n2nd Place: $240  \n3rd Place: $180  \n\n🏆 Special Prizes (mutually exclusive with winning):\n\n6 Wins: $100  \n5 Wins: $50  \n\n🎁 Participation Prize: Everyone who finishes all 6 rounds will receive a 30$ discount card (does not stack with our sales and other promos).\nAll you have to do is register and be here at the starting time! The next rounds will start as soon as all the games are finished.\n\nThe expected total duration is about 1.5h\n\n⌚ **The start time is shown in your local timezone!!**  \n**Absolute start time is:**   \n**Saturday, January 17, 2026 6:00 PM UTC**  \n[**ADD TO YOUR GOOGLE CALENDAR**](https://go.gomagic.org/gk5nWj)   \n[**ADD TO YOUR OUTLOOK CALENDAR**](https://go.gomagic.org/JGbKAL)   \n  \n🪄✨ Learn Go the Magical way at <a href=\"https://go.gomagic.org/X4LK1U\" target=\"_blank\">Go Magic</a>",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 18,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "rapid",
                "pause_on_weekends": false,
                "time_increment": 7,
                "initial_time": 300,
                "max_time": 300
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 8605,
                "name": "Go Magic",
                "summary": "A modern platform for learning Go",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 2236,
                "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-01-17T18:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2026-01-17T18:00:35.436142Z",
            "ended": "2026-01-17T19:52:06.065096Z",
            "start_waiting": "2026-01-17T18:00:26.174874Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-15.png",
            "player_count": 206,
            "ranked": false
        },
        {
            "id": 75170,
            "name": "15/5 馬彥彬\t何信霆",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "馬彥彬\t何信霆",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 25,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 480,
                "period_time": 20,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7531,
                "name": "傳碁 C班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 87,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2021-05-15T04:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2021-05-15T03:49:10.906528Z",
            "ended": "2021-05-15T04:11:45.976189Z",
            "start_waiting": "2021-05-15T03:49:10.841168Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 111443,
            "name": "9x9 Open D.E. Cup #119",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1412.4154985378723,
                        "deviation": 72.20869592013248,
                        "volatility": 0.06027247824235246
                    }
                },
                "ranking": 22.910591371884866,
                "professional": false,
                "ui_class": ""
            },
            "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": false,
            "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": 716,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-01-14T20:00:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-01-11T00:16:32.379312Z",
            "ended": "2024-08-02T12:42:29.376424Z",
            "start_waiting": "2024-01-11T00:16:32.205799Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 103746,
            "name": "June Tournement",
            "director": {
                "id": 1066928,
                "username": "Arkhaya",
                "country": "sg",
                "icon": "https://user-uploads.online-go.com/392c557da0e8a154bcf860d082917ae3-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1745.7064342348563,
                        "deviation": 67.32393272787282,
                        "volatility": 0.06008917697655887
                    }
                },
                "ranking": 27.815102888895215,
                "professional": false,
                "ui_class": ""
            },
            "description": "June Tournement for SIM students",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 13099,
                "name": "SIM Weiqi",
                "summary": "Group for SIM Weiqi Members, alumni's and outsiders that join SIM Weiqi events and sessions",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 19,
                "icon": "https://user-uploads.online-go.com/775fbe7b91bd5bcaa7a74aa3d7b2abed-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-06-01T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-06-01T09:00:59.331388Z",
            "ended": "2023-07-28T02:28:18.875731Z",
            "start_waiting": "2023-06-01T09:00:58.918722Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/775fbe7b91bd5bcaa7a74aa3d7b2abed-15.png",
            "player_count": 10,
            "ranked": true
        }
    ]
}