List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-auto_start_on_max&page=417
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59585,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-auto_start_on_max&page=418",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-auto_start_on_max&page=416",
    "results": [
        {
            "id": 53152,
            "name": "1st Atlanta 13x13 Air Tournament: Group A",
            "director": {
                "id": 473434,
                "username": "DoubleSente",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/7a52b9c53ec155ff3c7d9a45c75edecf-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1891.386906647593,
                        "deviation": 62.91280212348621,
                        "volatility": 0.05998964037582742
                    }
                },
                "ranking": 29.67060006447044,
                "professional": false,
                "ui_class": ""
            },
            "description": "Top two will progress.\nThird place from Group A will play third place from Group B for the wildcard spot.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 16320,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 14400,
                "initial_time": 172800,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 3777,
                "name": "Atlanta Go Club",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 87,
                "icon": "https://user-uploads.online-go.com/0518472c36e05a1ac71136d7fb356f1e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-10-22T19:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2019-10-21T19:40:23.660251Z",
            "ended": "2019-11-08T16:23:50.401543Z",
            "start_waiting": "2019-10-21T19:40:22.995402Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/0518472c36e05a1ac71136d7fb356f1e-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 139277,
            "name": "19x19 Open D.E. Cup #170",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1255.6949248772207,
                        "deviation": 70.03577864113801,
                        "volatility": 0.06021843441277814
                    }
                },
                "ranking": 20.187868620827977,
                "professional": false,
                "ui_class": ""
            },
            "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": false,
            "group": {
                "id": 12599,
                "name": "GO Special Tournaments",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 72,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2026-04-26T21:00:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2026-04-23T19:46:30.315783Z",
            "ended": null,
            "start_waiting": "2026-04-23T19:46:30.102935Z",
            "board_size": 19,
            "active_round": 1,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 57747,
            "name": "Martha GO Turnier",
            "director": {
                "id": 741532,
                "username": "LucasZ",
                "country": "de",
                "icon": "https://secure.gravatar.com/avatar/11bde9b5b88074cd9129447baa5f6ba5?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 831.8284597322307,
                        "deviation": 70.21555745641709,
                        "volatility": 0.06003082455103636
                    }
                },
                "ranking": 10.654277708420931,
                "professional": false,
                "ui_class": ""
            },
            "description": "Wer will Go lernen ? Go Turnier für alle",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "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": false,
            "group": {
                "id": 4604,
                "name": "Martha",
                "summary": "Spieltreff Martha",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 76,
                "icon": "https://user-uploads.online-go.com/03e3b412dc40088d78aaa8f39f57b16a-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-03-20T16:30:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-03-20T16:19:34.849021Z",
            "ended": "2020-03-24T16:07:04.956865Z",
            "start_waiting": "2020-03-20T16:19:34.662167Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/03e3b412dc40088d78aaa8f39f57b16a-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 65538,
            "name": "Wednesday tournament :D",
            "director": {
                "id": 836874,
                "username": "NicholasD03",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/f493528ea0a3bfff700b0528c858339c?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1028.5047944967969,
                        "deviation": 71.63711526554845,
                        "volatility": 0.060081207056853145
                    }
                },
                "ranking": 15.567520953222878,
                "professional": false,
                "ui_class": ""
            },
            "description": "Description blah blah blah",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 10,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 10,
                "initial_time": 60,
                "max_time": 60
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 6721,
                "name": "Mr. Erb's Math Class",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 19,
                "icon": "https://user-uploads.online-go.com/6910eda41e1a6a0c79cb362e854798f9-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-09-16T19:47:00Z",
            "players_start": 3,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2020-09-16T19:47:09.494442Z",
            "ended": "2020-09-16T20:02:52.304303Z",
            "start_waiting": "2020-09-16T19:47:09.205957Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6910eda41e1a6a0c79cb362e854798f9-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 53153,
            "name": "1st Atlanta 13x13 Air Tournament: Group B",
            "director": {
                "id": 473434,
                "username": "DoubleSente",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/7a52b9c53ec155ff3c7d9a45c75edecf-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1891.386906647593,
                        "deviation": 62.91280212348621,
                        "volatility": 0.05998964037582742
                    }
                },
                "ranking": 29.67060006447044,
                "professional": false,
                "ui_class": ""
            },
            "description": "Top two will progress. \nThird place from Group A will play third place from Group B for the wildcard spot.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 16320,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 14400,
                "initial_time": 172800,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 3777,
                "name": "Atlanta Go Club",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 87,
                "icon": "https://user-uploads.online-go.com/0518472c36e05a1ac71136d7fb356f1e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-10-22T19:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2019-10-21T19:54:08.028487Z",
            "ended": "2019-11-11T20:41:51.250979Z",
            "start_waiting": "2019-10-21T19:54:06.694206Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/0518472c36e05a1ac71136d7fb356f1e-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 16066,
            "name": "Reddit Round Robin Handicap Correspondence - 10k-1k",
            "director": {
                "id": 963,
                "username": "thouis",
                "country": "_LGBT",
                "icon": "https://user-uploads.online-go.com/a2e7f9e59abe305c58d78f58f24e5f13-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1291.7790212318305,
                        "deviation": 62.747586132736146,
                        "volatility": 0.059567936719525774
                    }
                },
                "ranking": 20.843736136897338,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Reddit Round Robin Handicap Correspondence - 10k-1k",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "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": 38,
                "name": "reddit",
                "summary": "/r/baduk",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 2282,
                "icon": "https://user-uploads.online-go.com/5021b9df7b49c54cc5eb5d8ce9d893bb-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2016-04-02T16:30:08.991465Z",
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 20,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-04-02T16:30:33.784019Z",
            "ended": "2016-09-05T13:18:09.059716Z",
            "start_waiting": "2016-04-02T16:30:33.251446Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5021b9df7b49c54cc5eb5d8ce9d893bb-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 34522,
            "name": "Cookies!",
            "director": {
                "id": 434287,
                "username": "plunco123",
                "country": "sg",
                "icon": "https://user-uploads.online-go.com/09c2e06377580c17170f0176640e628c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1065.148398354857,
                        "deviation": 62.98616519671558,
                        "volatility": 0.060034951495478994
                    }
                },
                "ranking": 16.377957053584552,
                "professional": false,
                "ui_class": ""
            },
            "description": "cookies!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 61,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 120,
                "max_time": 300,
                "time_increment": 60,
                "speed": "live"
            },
            "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": 17948,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-02-17T10:34:00Z",
            "players_start": 1,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-02-17T10:34:32.621328Z",
            "ended": "2018-02-17T10:39:32.669692Z",
            "start_waiting": "2018-02-17T10:34:32.205915Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 128606,
            "name": "Handicap Arena 2025 - 039",
            "director": {
                "id": 526987,
                "username": "Gia",
                "country": "gr",
                "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1077.7610819445333,
                        "deviation": 64.33073886772479,
                        "volatility": 0.060067367314019605
                    }
                },
                "ranking": 16.6504715946996,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Part of an arena tournament - 2025. For details, rules and arena-standings see the group page.\n\nThe tournament will start as soon as it is full (10 players).",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 13655,
                "name": "Handicap Arena",
                "summary": "Organising arena-type handicap correspondence tournaments.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 106,
                "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-05-22T15:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-05-21T16:53:08.481690Z",
            "ended": "2025-08-12T06:16:38.804776Z",
            "start_waiting": "2025-05-21T16:53:07.933169Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/5fe2ed1a16feb631d49732f2de506b9e-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 122850,
            "name": "13x13 Open League #34",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1255.6949248772207,
                        "deviation": 70.03577864113801,
                        "volatility": 0.06021843441277814
                    }
                },
                "ranking": 20.187868620827977,
                "professional": false,
                "ui_class": ""
            },
            "description": "Open league for everyone. Tournament will be started as soon as 10 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 90782,
            "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": 12599,
                "name": "GO Special Tournaments",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 72,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-01-19T21:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-01-13T19:33:44.725099Z",
            "ended": "2025-04-25T10:58:11.347286Z",
            "start_waiting": "2025-01-13T19:33:43.580669Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 37973,
            "name": "V^*()",
            "director": {
                "id": 120320,
                "username": "Ignil",
                "country": "_GoT_Lannister",
                "icon": "https://user-uploads.online-go.com/e9f6ae33557bfe5d19889c6e4af8dcc4-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2121.912696995676,
                        "deviation": 70.45817006699149,
                        "volatility": 0.05996492273182429
                    }
                },
                "ranking": 32.33302425647488,
                "professional": false,
                "ui_class": ""
            },
            "description": "9x9 Round Robin",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": true,
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 259200,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 485,
                "name": "THAILAND GO",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 511,
                "icon": "https://user-uploads.online-go.com/51662af930ea8ccf8fe4335513ca2357-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2018-07-27T10:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 21,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-06-29T06:12:35.911766Z",
            "ended": "2018-07-18T02:42:29.222234Z",
            "start_waiting": "2018-06-29T06:12:32.384790Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/51662af930ea8ccf8fe4335513ca2357-15.png",
            "player_count": 10,
            "ranked": true
        }
    ]
}