List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-is_open&page=12
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59886,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-is_open&page=13",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-is_open&page=11",
    "results": [
        {
            "id": 3369,
            "name": "death match",
            "director": {
                "id": 73094,
                "username": "hikaru1no1go",
                "country": "pk",
                "icon": "https://user-uploads.online-go.com/321d8cdbe7db0f9c7a8fa0c3059ca751-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1582.0014365944573,
                        "deviation": 64.84465326691476,
                        "volatility": 0.06006480111490102
                    }
                },
                "ranking": 25.535556427004384,
                "professional": false,
                "ui_class": ""
            },
            "description": "kill or be killed",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 313,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 300,
                "main_time": 1200,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 18004,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 10,
            "max_ranking": 21,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2014-11-08T14:35:45.994131Z",
            "ended": "2014-11-08T16:46:09.800482Z",
            "start_waiting": "2014-11-08T14:35:45.789720Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 6728,
            "name": "Go dragon",
            "director": {
                "id": 142160,
                "username": "DarkFlameDragon",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/0ae052a48d18a8049bcc141e097eb2c8-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1040.6831171185177,
                        "deviation": 207.23459648390494,
                        "volatility": 0.059999595675785465
                    }
                },
                "ranking": 15.84002537149006,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Tourney",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 591,
                "name": "Dark Fire Dragons",
                "summary": "We are dragons who like challenges.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 5,
                "icon": "https://user-uploads.online-go.com/24288244b59480380f915460f7b14ca6-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2015-04-18T18:41:00Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2015-05-02T07:50:56.943732Z",
            "ended": "2015-10-14T00:57:54.159360Z",
            "start_waiting": "2015-05-02T07:50:56.866696Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/24288244b59480380f915460f7b14ca6-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 584,
            "name": "irishfire's mini-tournament",
            "director": {
                "id": 17935,
                "username": "irishfire",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/30a327248dcdf0e3e8c3934d94975a26?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1798.4065116004958,
                        "deviation": 66.45104039620983,
                        "volatility": 0.059973393234511715
                    }
                },
                "ranking": 28.5036231138176,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 384,
                "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": 14,
            "max_ranking": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2009-02-01T13:11:19Z",
            "ended": "2009-02-01T12:11:19Z",
            "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": 583,
            "name": "belcanta's mini-tournament",
            "director": {
                "id": 20996,
                "username": "belcanta",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/ea43188c9817876540299f35d2e62346?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1149.217873824813,
                        "deviation": 75.05463556584196,
                        "volatility": 0.060017533213005604
                    }
                },
                "ranking": 18.13660399902784,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 384,
                "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": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2008-10-03T15:14:59Z",
            "ended": "2008-10-03T13:14:59Z",
            "start_waiting": null,
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 582,
            "name": "danielg07's mini-tournament",
            "director": {
                "id": 4734,
                "username": "danielg07",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/d0be4bc52a37947aa61d7203f4fb07cb?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 950.8174492660216,
                        "deviation": 98.96191671404814,
                        "volatility": 0.059987135607594645
                    }
                },
                "ranking": 13.749336546897544,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 432000,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 432000
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 384,
                "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": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2009-01-05T03:11:14Z",
            "ended": "2009-01-05T02:11:14Z",
            "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": 581,
            "name": "illluck's 9 by 9 mini-tournament",
            "director": {
                "id": 8913,
                "username": "illluck",
                "country": "bm",
                "icon": "https://secure.gravatar.com/avatar/85bdd392bea699743bc80952caf31802?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2048.7306821280818,
                        "deviation": 67.96320762506875,
                        "volatility": 0.060156222117966056
                    }
                },
                "ranking": 31.52051769711619,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 432000,
                "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": 384,
                "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": 9,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2008-09-12T19:47:42Z",
            "ended": "2008-09-12T17:47:42Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 140264,
            "name": "Level up together # 1",
            "director": {
                "id": 2012745,
                "username": "yenchiu",
                "country": "cn",
                "icon": "https://user-uploads.online-go.com/4aebac277138eb98fa18277085d842b7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 898.4458616480676,
                        "deviation": 72.33997573895067,
                        "volatility": 0.0600370993635565
                    }
                },
                "ranking": 12.437758544530096,
                "professional": false,
                "ui_class": ""
            },
            "description": "7-Day Fixed Time Limit 19×19 Swiss‑System Correspondence Tournament (Levels 20‑9)",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "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": 16430,
                "name": "Level up together",
                "summary": "Good good game, day day up!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 7,
                "icon": "https://user-uploads.online-go.com/19cf56473af5edcebdc93a3a95613fd9-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2026-05-25T10:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 11,
            "max_ranking": 21,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2026-05-25T10:00:16.627886Z",
            "ended": null,
            "start_waiting": "2026-05-25T10:00:16.458888Z",
            "board_size": 19,
            "active_round": 1,
            "icon": "https://user-uploads.online-go.com/19cf56473af5edcebdc93a3a95613fd9-15.png",
            "player_count": 16,
            "ranked": true
        },
        {
            "id": 123420,
            "name": "Beat The Kyu Be A Dan 2025",
            "director": {
                "id": 281554,
                "username": "TYDC",
                "country": "_DOOP",
                "icon": "https://user-uploads.online-go.com/bbd482f273f613d97a246c2d297b822c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1773.652046320322,
                        "deviation": 63.61099632741287,
                        "volatility": 0.0599257586696323
                    }
                },
                "ranking": 28.18275768784985,
                "professional": false,
                "ui_class": ""
            },
            "description": "When did you start to learn Go? Not a Dan player yet?\n\nIf you have been playing Go for many years, doing many tsumegoes, but still kyu level, you are not alone!\n\nJoin our annual 2025 tournament, a tradition since 2019. This place is for players like you, facing the same challenges, to come together.\n\n\nNo pause or vacation. If you are concerned your opponent is using vacation or pause, PM the tournament director with the link to your game. Violators will be disqualified if their opponent reports.\n\nNo sandbagging. \n\nNo AI support.",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 45251,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 14250,
                "name": "Beat The Kyu Be A Dan",
                "summary": "<table cellpadding=\"15\" style=\"border-spacing: 15px; text-align: left;\">\n    <thead>\n        <tr>\n            <th style=\"padding-right: 20px;\">Year</th>\n            <th style=\"padding-right: 20px;\">Tournament</th>\n            <th style=\"padding-right: 20px",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 155,
                "icon": "https://user-uploads.online-go.com/9fcb293bae1556512429d98bacd4d18b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-01-01T16:59:00Z",
            "players_start": 100,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 28,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2025-01-01T17:07:11.017151Z",
            "ended": null,
            "start_waiting": "2025-01-01T17:06:00.292601Z",
            "board_size": 19,
            "active_round": 5,
            "icon": "https://user-uploads.online-go.com/9fcb293bae1556512429d98bacd4d18b-15.png",
            "player_count": 1483,
            "ranked": true
        },
        {
            "id": 140584,
            "name": "Live 9x9 Double Elimination Tournament 2026-05-25 10:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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 Site-wide Tournament",
            "schedule": {
                "id": 2,
                "name": "Live 9x9 Double Elimination Tournament",
                "rrule": "DTSTART:20260610T220000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:22:51.496184Z",
                "last_run": "2026-06-10T22:00:18.783457Z",
                "lead_time_seconds": 1800,
                "tournament_type": "double_elimination",
                "handicap": 0,
                "rules": "japanese",
                "size": 9,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 30,
                    "main_time": 300,
                    "periods": 3
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slide",
                "subsequent_pairing_method": "slide",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 100
                },
                "next_run": "2026-06-11T02:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 41,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 300,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2026-05-25T10:30:16.638669Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2026-05-25T10:31:16.509353Z",
            "ended": "2026-05-25T11:30:09.737731Z",
            "start_waiting": "2026-05-25T10:31:16.461567Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 140623,
            "name": "Correspondence 9x9 RoundRobin 2026-05-27 19:00",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?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 Site-wide Tournament",
            "schedule": {
                "id": 5,
                "name": "Correspondence 9x9 RoundRobin",
                "rrule": "DTSTART:20260610T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T05:56:18.340749Z",
                "last_run": "2026-06-10T19:00:18.765936Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 9,
                "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": "2026-06-13T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 95543,
            "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": "2026-05-27T19:00:16.960488Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-05-27T19:01:16.932707Z",
            "ended": null,
            "start_waiting": "2026-05-27T19:01:16.834972Z",
            "board_size": 9,
            "active_round": 1,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 5,
            "ranked": true
        }
    ]
}