List all tournaments or create a new tournament.

GET /api/v1/tournaments/?ordering=ranked&page=4
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59895,
    "next": "https://online-go.com/api/v1/tournaments/?ordering=ranked&page=5",
    "previous": "https://online-go.com/api/v1/tournaments/?ordering=ranked&page=3",
    "results": [
        {
            "id": 136062,
            "name": "ซ้อมแข่ง ครั้งที่ 1 ปี 69",
            "director": {
                "id": 564908,
                "username": "Sarawoot Kanya",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/b6481afb00bf1ffc14aefec9418093c9-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1450.7244757952644,
                        "deviation": 64.2988723906399,
                        "volatility": 0.06068198210976438
                    }
                },
                "ranking": 23.53012500304784,
                "professional": false,
                "ui_class": ""
            },
            "description": "12344567",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 21,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "rapid",
                "pause_on_weekends": false,
                "main_time": 300,
                "period_time": 10,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 14733,
                "name": "ศรีสังวาลย์",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 32,
                "icon": "https://user-uploads.online-go.com/77a325d663f63d21c325d52de886e9e2-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2026-01-05T08:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2026-01-05T07:26:52.733680Z",
            "ended": "2026-01-05T07:55:34.029349Z",
            "start_waiting": "2026-01-05T07:26:52.663607Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/77a325d663f63d21c325d52de886e9e2-15.png",
            "player_count": 4,
            "ranked": false
        },
        {
            "id": 136625,
            "name": "ranking round 1",
            "director": {
                "id": 1942246,
                "username": "Rosemary Teacher",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/066f8b0bfc551845f905ae10d94383da?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 710.3615547953566,
                        "deviation": 250,
                        "volatility": 0.06
                    }
                },
                "ranking": 7.000000000000001,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "james- cooper",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "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": 16110,
                "name": "Chinese game Class",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 10,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2026-01-22T14:56:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2026-01-22T14:56:04.763330Z",
            "ended": "2026-01-25T15:09:40.685563Z",
            "start_waiting": "2026-01-22T14:56:04.698009Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": false
        },
        {
            "id": 136206,
            "name": "9x9 tournament",
            "director": {
                "id": 1067981,
                "username": "Averyw123",
                "country": "nz",
                "icon": "https://user-uploads.online-go.com/f887017259dd7746e20627b59b0c7968-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1274.6513862158752,
                        "deviation": 65.37626830930803,
                        "volatility": 0.06010299986513658
                    }
                },
                "ranking": 20.534738366137827,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "9x9 tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 95543,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 10855,
                "name": "⚫️The Brilliant World Of OGS⚪️",
                "summary": "Are you an OGS fan? If you are, join this group where there’s great tournaments and games to be played.\n\nPeople and bots can chat and play in this group. This is a public group so all are welcome to join.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 192,
                "icon": "https://user-uploads.online-go.com/0e618bdf660c5ca247f547082c39f943-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-04-30T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-04-30T23:00:49.126498Z",
            "ended": null,
            "start_waiting": "2026-04-30T23:00:48.754412Z",
            "board_size": 9,
            "active_round": 1,
            "icon": "https://user-uploads.online-go.com/0e618bdf660c5ca247f547082c39f943-15.png",
            "player_count": 24,
            "ranked": false
        },
        {
            "id": 139935,
            "name": "king of go",
            "director": {
                "id": 2008005,
                "username": "cubingpan",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/fd746bfc0039c63b69294814c9a8d783-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 517.8976417522526,
                        "deviation": 80.80572533629119,
                        "volatility": 0.06006076682904618
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "king of go",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 3,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "blitz",
                "pause_on_weekends": false,
                "per_move": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 16404,
                "name": "box box box",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/bee4d98c33b0fe7f63cd04886372dcba-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-05-04T19:39:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-05-04T19:39:49.068127Z",
            "ended": "2026-05-04T19:44:25.904262Z",
            "start_waiting": "2026-05-04T19:39:49.030934Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/bee4d98c33b0fe7f63cd04886372dcba-15.png",
            "player_count": 3,
            "ranked": false
        },
        {
            "id": 139934,
            "name": "king of go",
            "director": {
                "id": 2008005,
                "username": "cubingpan",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/fd746bfc0039c63b69294814c9a8d783-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 517.8976417522526,
                        "deviation": 80.80572533629119,
                        "volatility": 0.06006076682904618
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "king of go",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 3,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "blitz",
                "pause_on_weekends": false,
                "per_move": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 16404,
                "name": "box box box",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/bee4d98c33b0fe7f63cd04886372dcba-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-05-04T19:36:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-05-04T19:36:49.070489Z",
            "ended": "2026-05-04T19:38:56.628430Z",
            "start_waiting": "2026-05-04T19:36:49.032577Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/bee4d98c33b0fe7f63cd04886372dcba-15.png",
            "player_count": 3,
            "ranked": false
        },
        {
            "id": 139936,
            "name": "go go go",
            "director": {
                "id": 2008005,
                "username": "cubingpan",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/fd746bfc0039c63b69294814c9a8d783-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 517.8976417522526,
                        "deviation": 80.80572533629119,
                        "volatility": 0.06006076682904618
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "king of go",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "rapid",
                "pause_on_weekends": false,
                "per_move": 10
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 16404,
                "name": "box box box",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/bee4d98c33b0fe7f63cd04886372dcba-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-05-04T19:46:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-05-04T19:46:49.072241Z",
            "ended": "2026-05-04T20:07:26.776548Z",
            "start_waiting": "2026-05-04T19:46:49.031432Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/bee4d98c33b0fe7f63cd04886372dcba-15.png",
            "player_count": 3,
            "ranked": false
        },
        {
            "id": 138350,
            "name": "16-3 แข่ง",
            "director": {
                "id": 470505,
                "username": "Kru.Phu",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/dbdf49f17f4fe6e6aed3c736fac58f0d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2208.607931409905,
                        "deviation": 69.28347543000088,
                        "volatility": 0.06001604873366919
                    }
                },
                "ranking": 33.26005499347702,
                "professional": false,
                "ui_class": ""
            },
            "description": "16-3 แข่ง",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 15,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 10,
                "periods": 1
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 16288,
                "name": "Mday class",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 5,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2026-03-16T12:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-03-16T11:42:14.264786Z",
            "ended": "2026-03-16T11:43:52.532020Z",
            "start_waiting": "2026-03-16T11:42:14.186565Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": false
        },
        {
            "id": 135011,
            "name": "✨🎄 GoMagical December 🎄✨",
            "director": {
                "id": 901303,
                "username": "Muff0",
                "country": "eu",
                "icon": "https://user-uploads.online-go.com/e04175e5267b560bb2448bb1867a73e7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1739.8508835661953,
                        "deviation": 62.59526273503277,
                        "volatility": 0.05985895502649097
                    }
                },
                "ranking": 27.73732128145447,
                "professional": false,
                "ui_class": ""
            },
            "description": "🎉A special rapid tournament to open the Holiday Season with Go Magic!🎄✨\n\nAll prizes are Go Magic Gift Cards\n\n🏆Prizes:\n\n    1st Place: $100\n    2nd Place: $60\n    3rd Place: $35\n\n🏆Special Prizes(mutually exclusive with winning):\n\n    5 Wins: $50\n    4 Wins: $25\n\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, December 13, 2025 6:00 PM UTC**  \n[**ADD TO YOUR GOOGLE CALENDAR**](https://calendar.google.com/calendar/render?action=TEMPLATE&text=GoMagical%20December&details=A%20special%20rapid%20tournament%20to%20open%20the%20Holiday%20Season%20with%20Go%20Magic!&location=https%3A%2F%2Fonline-go.com%2Ftournament%2F135011&dates=20251213T180000Z%2F20251213T193000Z) \n  \nNote: This will serve as a final test for introducing regular tournaments with this format, we'd be very grateful if you could provide any feedback for improving. You can write it directly in the tournament chat.\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": 2144,
                "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-12-13T18:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2025-12-13T18:00:18.689427Z",
            "ended": "2025-12-13T19:24:26.357478Z",
            "start_waiting": "2025-12-13T18:00:16.076513Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/fa56564088c1e0dbd50bb8160d94193d-15.png",
            "player_count": 107,
            "ranked": false
        },
        {
            "id": 136360,
            "name": "Southampton Jan2026 13x13 Tournament",
            "director": {
                "id": 1350621,
                "username": "SMS-Mr.d",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/a37a10b28a4630ef53f62c17e567cca7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1087.6431665845494,
                        "deviation": 61.776335264617884,
                        "volatility": 0.05998629219958402
                    }
                },
                "ranking": 16.861768721103054,
                "professional": false,
                "ui_class": ""
            },
            "description": "Southampton Dec2025 13x13 Tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 7,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "rapid",
                "pause_on_weekends": false,
                "time_increment": 6,
                "initial_time": 45,
                "max_time": 45
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 14789,
                "name": "Southampton Middle School Go Club",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": true,
                "member_count": 15,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2026-01-14T20:05:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2026-01-14T20:03:29.013332Z",
            "ended": "2026-01-14T20:40:05.713437Z",
            "start_waiting": "2026-01-14T20:03:28.624592Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 12,
            "ranked": false
        },
        {
            "id": 135625,
            "name": "แข่งแบบแพ้คัดออก",
            "director": {
                "id": 564908,
                "username": "Sarawoot Kanya",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/b6481afb00bf1ffc14aefec9418093c9-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1450.7244757952644,
                        "deviation": 64.2988723906399,
                        "volatility": 0.06068198210976438
                    }
                },
                "ranking": 23.53012500304784,
                "professional": false,
                "ui_class": ""
            },
            "description": "แพ้คัดออก",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 21,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "rapid",
                "pause_on_weekends": false,
                "main_time": 300,
                "period_time": 10,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 14733,
                "name": "ศรีสังวาลย์",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 32,
                "icon": "https://user-uploads.online-go.com/77a325d663f63d21c325d52de886e9e2-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-12-22T08:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2025-12-22T07:56:45.199117Z",
            "ended": "2025-12-22T08:19:10.712346Z",
            "start_waiting": "2025-12-22T07:56:45.129634Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/77a325d663f63d21c325d52de886e9e2-15.png",
            "player_count": 6,
            "ranked": false
        }
    ]
}