List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=4025
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59095,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=4026",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-subsequent_pairing_method&page=4024",
    "results": [
        {
            "id": 117153,
            "name": "19x19 Correspondence Double Elimination",
            "director": {
                "id": 921893,
                "username": "nikila",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/052ccd566373074bd5d5bdc87778f37b?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1601.2919263122153,
                        "deviation": 66.52017130138233,
                        "volatility": 0.06017707086875492
                    }
                },
                "ranking": 25.816133962678784,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19 correspondence double elimination",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "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": 14384,
                "name": "nikila",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 5,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2024-06-20T10:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-06-20T10:00:47.898542Z",
            "ended": "2024-12-16T13:29:25.938405Z",
            "start_waiting": "2024-06-20T10:00:47.835105Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 131502,
            "name": "Just play",
            "director": {
                "id": 838050,
                "username": "Noame",
                "country": "_Pirate",
                "icon": "https://secure.gravatar.com/avatar/980c0a6a206285c731bad6badb50b036?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1511.4616222522511,
                        "deviation": 66.29302420588455,
                        "volatility": 0.06003498363140431
                    }
                },
                "ranking": 24.479600822541165,
                "professional": false,
                "ui_class": ""
            },
            "description": "Doesn't have to explain it ,yay...",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "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": false,
            "group": {
                "id": 8667,
                "name": "Dog &cat",
                "summary": "It's dogs turn now",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 26,
                "icon": "https://user-uploads.online-go.com/ee08d4f437b81c28d8b7d19b837a28cd-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-08-17T07:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": null,
            "ended": null,
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/ee08d4f437b81c28d8b7d19b837a28cd-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 82484,
            "name": "Tournament",
            "director": {
                "id": 1013920,
                "username": "s10906218",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/0e3dce43b65bb1bef00fe3217f6a95df?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2247.143281368795,
                        "deviation": 74.5344045044762,
                        "volatility": 0.06008637675611215
                    }
                },
                "ranking": 33.66048829934749,
                "professional": false,
                "ui_class": ""
            },
            "description": "Tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "korean",
            "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": 25,
                "name": "Go Basics",
                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17722,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-11-15T12:00:00Z",
            "players_start": 50,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-11-23T12:58:20.729786Z",
            "ended": "2022-11-07T17:34:32.519013Z",
            "start_waiting": "2021-11-23T12:58:20.163594Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 38,
            "ranked": true
        },
        {
            "id": 125241,
            "name": "Inden",
            "director": {
                "id": 1715961,
                "username": "Inden",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/e4bdbb8ec46904528c0d00da9f533665?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 541.8982450677848,
                        "deviation": 99.14449471015799,
                        "volatility": 0.06002172026551276
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "圍棋很好👍",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 8419,
                "name": "世界华人围棋协会",
                "summary": "📣📣📣:诚邀世界各地各个水平阶段的棋友们前来一起切磋交流~ 主页含有各类免费围棋资源供大家使用(新手友好)。会内将定期举办各种赛事等活动,祝各位玩得开心!🔥🔥🔥",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 166,
                "icon": "https://user-uploads.online-go.com/1904b8af9a2c4de9493b717be66ba612-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-02-09T05:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": null,
            "ended": null,
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1904b8af9a2c4de9493b717be66ba612-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 110899,
            "name": "Smaller Go on the Table",
            "director": {
                "id": 1465095,
                "username": "HistoryTable",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1a99de3efdbc0c5a27ae1b3a237ea332?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 776.5284383996035,
                        "deviation": 61.979999380243946,
                        "volatility": 0.05988688934101061
                    }
                },
                "ranking": 9.061720322941634,
                "professional": false,
                "ui_class": ""
            },
            "description": "Smaller go on the table, take 3",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 90782,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 432000
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 13887,
                "name": "Go on the Table",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://user-uploads.online-go.com/47fba8e6110be66b3dd5802f35a82ddb-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-01-01T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-01-01T14:51:35.949261Z",
            "ended": "2024-03-26T17:20:08.151588Z",
            "start_waiting": "2024-01-01T14:51:35.781715Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/47fba8e6110be66b3dd5802f35a82ddb-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 94588,
            "name": "Correspondence 13x13 RoundRobin 2022-09-14 19:00",
            "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": 7,
                "name": "Correspondence 13x13 RoundRobin",
                "rrule": "DTSTART:20260116T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T06:00:14.582400Z",
                "last_run": "2026-01-16T19:00:51.484195Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 13,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "pause_on_weekends": true,
                    "max_time": 259200,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slaughter",
                "subsequent_pairing_method": "slaughter",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 10
                },
                "next_run": "2026-01-19T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "pause_on_weekends": true,
                "max_time": 259200,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2022-09-14T19:00:25.158079Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-09-14T19:01:24.723051Z",
            "ended": "2022-11-18T05:20:13.044869Z",
            "start_waiting": "2022-09-14T19:01:24.092678Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 127791,
            "name": "Tokyo Beginner Cup",
            "director": {
                "id": 1463203,
                "username": "migueltokyo",
                "country": "es",
                "icon": "https://user-uploads.online-go.com/105515f4fc542bcfda6766d862aef3bd-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 923.3151393948276,
                        "deviation": 61.76927390265455,
                        "volatility": 0.060014020236007985
                    }
                },
                "ranking": 13.06984974278749,
                "professional": false,
                "ui_class": ""
            },
            "description": "Welcome",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 25,
                "name": "Go Basics",
                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 17722,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-04-24T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 9,
            "max_ranking": 13,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": null,
            "ended": null,
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 1,
            "ranked": true
        },
        {
            "id": 71947,
            "name": "jesie safe sppace",
            "director": {
                "id": 751875,
                "username": "eyeeh4578",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/c3a97b7960be52a39e13967baac63898-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1362.9752330208305,
                        "deviation": 73.4583146996863,
                        "volatility": 0.060024784676947135
                    }
                },
                "ranking": 22.0857250039004,
                "professional": false,
                "ui_class": ""
            },
            "description": "jessie is a reteard",
            "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": "2021-02-27T03:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-02-27T02:07:16.830948Z",
            "ended": "2021-02-27T03:41:43.297176Z",
            "start_waiting": "2021-02-27T02:07:16.649677Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 135981,
            "name": "DDK Room Rapid Correspondence New Year Tournament",
            "director": {
                "id": 58836,
                "username": "DrQuantum",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/5192a63f12fa80c878392f9d0034612b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1025.1261933841697,
                        "deviation": 62.55256625966625,
                        "volatility": 0.058981045562908896
                    }
                },
                "ranking": 15.491348859224464,
                "professional": false,
                "ui_class": ""
            },
            "description": "Rapid Correspondence Tournament for DDKs - 12 hours increment per move, max 3 days.  Join the fun!",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 44568,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 172800,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 24,
                "name": "Double Digit Kyu Room",
                "summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 3621,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2026-01-16T16:00:00Z",
            "players_start": 8,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": null,
            "ended": null,
            "start_waiting": null,
            "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": 96424,
            "name": "9x9 Mini League 1k-9k #48",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1400.8978104296534,
                        "deviation": 70.09480275015542,
                        "volatility": 0.06013978826592349
                    }
                },
                "ranking": 22.721038385704258,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 9kyu and 1kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 690,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-11-13T21:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-11-08T11:37:16.010992Z",
            "ended": "2022-11-28T01:27:21.809831Z",
            "start_waiting": "2022-11-08T11:37:15.858003Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        }
    ]
}