List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=board_size&page=5888
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60019,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=board_size&page=5889",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=board_size&page=5887",
    "results": [
        {
            "id": 2566,
            "name": "SDK 1",
            "director": {
                "id": 104,
                "username": "Oolong4Go",
                "country": "_Klingon",
                "icon": "https://secure.gravatar.com/avatar/8e91ccf2e8ceef7a17d825edc71c1924?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1487.0974735216928,
                        "deviation": 79.93436684201419,
                        "volatility": 0.06000532839122804
                    }
                },
                "ranking": 24.103391824779585,
                "professional": false,
                "ui_class": ""
            },
            "description": "a 6 player Swiss tournament for SDK's",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": -1,
            "rules": "aga",
            "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": 20,
                "name": "Single Digit Kyu Room",
                "summary": "A room for SDK's \r\n",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 760,
                "icon": "https://user-uploads.online-go.com/86d86effdffc2d0bbcd98e0f3b379249-64.png"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 20,
            "max_ranking": 30,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-10-21T22:07:59.909798Z",
            "ended": "2014-03-14T15:52:44.191488Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/86d86effdffc2d0bbcd98e0f3b379249-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 2692,
            "name": "SDK Old Style",
            "director": {
                "id": 51811,
                "username": "bigko",
                "country": "ar",
                "icon": "https://user-uploads.online-go.com/9fa8cae2b5a7f02aa8530c7e9ddbdb39-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2439.772064382913,
                        "deviation": 68.72114928379412,
                        "volatility": 0.05992228004496642
                    }
                },
                "ranking": 35.564456852461845,
                "professional": false,
                "ui_class": ""
            },
            "description": "Mini Tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "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": 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": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 21,
            "max_ranking": 30,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2013-12-17T23:26:26.021046Z",
            "ended": "2014-04-15T21:08:35.078257Z",
            "start_waiting": "2013-12-17T23:26:23.613096Z",
            "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": 75,
            "name": "geeix996's mini-tournament",
            "director": {
                "id": 2347,
                "username": "geeix996",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/b216b6700ada0e2116d38f7fb551acbd?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 259200,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 259200
            },
            "is_open": true,
            "exclude_provisional": 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": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 9,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2006-03-22T06:30:00Z",
            "ended": "2006-07-22T18:47:00Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 119232,
            "name": "Handicap Arena 2024 - 060",
            "director": {
                "id": 2408,
                "username": "richyfourtytwo",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/8482108492340cf4f2021653180eb741-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1555.8104227451252,
                        "deviation": 66.23322166678231,
                        "volatility": 0.05973548358437876
                    }
                },
                "ranking": 25.149085803932696,
                "professional": false,
                "ui_class": ""
            },
            "description": "Part of an arena tournament. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as there are 5 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": "2024-08-20T21:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-08-20T06:41:58.920298Z",
            "ended": "2024-10-07T18:47:07.296364Z",
            "start_waiting": "2024-08-20T06:41:58.795290Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 2701,
            "name": "Syndrina's Beginner Review #01 - 19x19",
            "director": {
                "id": 4936,
                "username": "Syndrina",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/ef4fa10e12406bd9ea627dd9bd9fc111-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1386.241615721719,
                        "deviation": 66.75028378359585,
                        "volatility": 0.05990124794069735
                    }
                },
                "ranking": 22.47756722548621,
                "professional": false,
                "ui_class": ""
            },
            "description": "Check out the forum for details:\n\nhttp://online-go.com/forum/thread/3241/Syndrina%27s+Beginner+Review+%2301+-+19x19\n\n-Syndrina-",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 92160,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 518400,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "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": 3669,
                "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": 0,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2013-12-10T06:44:36.998551Z",
            "ended": "2014-05-07T00:00:42.596413Z",
            "start_waiting": "2013-12-10T06:42:18.376131Z",
            "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": 73,
            "name": "shige's mini-tournament",
            "director": {
                "id": 2316,
                "username": "shige",
                "country": "jp",
                "icon": "https://secure.gravatar.com/avatar/23879ac568fe30cfc1a440b96324c629?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2048.272981542471,
                        "deviation": 96.16834939888224,
                        "volatility": 0.06000210124930798
                    }
                },
                "ranking": 31.515345249410117,
                "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": "simple",
                "per_move": 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": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2006-03-16T10:05:00Z",
            "ended": "2006-06-17T12:15:00Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 127938,
            "name": "Blitz 19x19 Elimination Tournament 2025-04-28 01:30",
            "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": 1,
                "name": "Blitz 19x19 Elimination Tournament",
                "rrule": "DTSTART:20260624T010000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:06:42.010011Z",
                "last_run": "2026-06-24T01:00:16.067957Z",
                "lead_time_seconds": 1800,
                "tournament_type": "elimination",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 10,
                    "main_time": 120,
                    "periods": 5
                },
                "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": "2026-06-24T05:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 11,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 10,
                "main_time": 120,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2025-04-28T01:30:47.915390Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2025-04-28T01:31:47.986420Z",
            "ended": "2025-04-28T01:49:30.923966Z",
            "start_waiting": "2025-04-28T01:31:47.914225Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 70,
            "name": "DEME's mini-tournament",
            "director": {
                "id": 2303,
                "username": "DEME",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/9c57217143273950e2567f6f6856df8f?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 259200,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 259200
            },
            "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": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2006-03-13T03:39:00Z",
            "ended": "2006-09-20T04:01:00Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 109106,
            "name": "man'go",
            "director": {
                "id": 1269895,
                "username": "Cybèle",
                "country": "150",
                "icon": "https://user-uploads.online-go.com/caf19b4503b856d082647225e7fd43fe-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 863.8335028553679,
                        "deviation": 65.98550318269317,
                        "volatility": 0.060476089188204726
                    }
                },
                "ranking": 11.528278267512311,
                "professional": false,
                "ui_class": ""
            },
            "description": "cool tournament go week!",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 12930,
                "name": "Let's GOAT!",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 81,
                "icon": "https://user-uploads.online-go.com/a0c7ab7dee39303c7ca4faa23f7fc7c5-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-10-31T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-07-10T19:39:17.666148Z",
            "ended": "2024-10-22T12:44:03.470902Z",
            "start_waiting": "2024-07-10T19:39:17.566107Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a0c7ab7dee39303c7ca4faa23f7fc7c5-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 67,
            "name": "Torneo del \"giovedi'\"",
            "director": {
                "id": 2222,
                "username": "hman",
                "country": "it",
                "icon": "https://user-uploads.online-go.com/bb38658e64d087d9bc92fc93ed946e35-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1293.739617151733,
                        "deviation": 90.63236818250103,
                        "volatility": 0.05999416001581408
                    }
                },
                "ranking": 20.878845382347382,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 259200,
            "time_control_parameters": {
                "time_control": "simple",
                "per_move": 259200
            },
            "is_open": true,
            "exclude_provisional": 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": 385,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2006-03-09T19:07:00Z",
            "ended": "2006-12-28T05:19:00Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        }
    ]
}