List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=27
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59442,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=28",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=26",
    "results": [
        {
            "id": 60156,
            "name": "BlitzBoys",
            "director": {
                "id": 1490,
                "username": "UndeadKernel",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/537e829856ae46711469270e12b21459?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1526.7898005841055,
                        "deviation": 61.19813376412831,
                        "volatility": 0.05996655846879002
                    }
                },
                "ranking": 24.713189350710667,
                "professional": false,
                "ui_class": ""
            },
            "description": "Yolo the description",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "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": 30,
                "max_time": 30
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 5606,
                "name": "TK-Lab",
                "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": false,
            "time_start": "2020-05-06T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-05-06T16:29:11.538444Z",
            "ended": "2020-05-06T16:55:40.989027Z",
            "start_waiting": "2020-05-06T16:29:11.162619Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 101127,
            "name": "Random Tournament - April Fools edition",
            "director": {
                "id": 1229921,
                "username": "mąṅÿůų",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/b650cb8c00071df794c40ee31e810d30-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 808.5900103230491,
                        "deviation": 64.24372877994966,
                        "volatility": 0.059951913621273716
                    }
                },
                "ranking": 9.998340086813775,
                "professional": false,
                "ui_class": ""
            },
            "description": "Just join for fun if you're a cat. \n\nJoin if you're a person. If you are anything else, go ahead.",
            "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": false,
            "group": {
                "id": 1567,
                "name": "Cat League",
                "summary": "~~~~~~(=^O___O^)=",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 16,
                "icon": "https://user-uploads.online-go.com/733050e2880f49130b9200276f899495-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-04-02T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-04-01T17:04:22.836466Z",
            "ended": "2025-10-13T09:23:16.321197Z",
            "start_waiting": "2023-04-01T17:04:22.376417Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/733050e2880f49130b9200276f899495-15.png",
            "player_count": 24,
            "ranked": true
        },
        {
            "id": 130110,
            "name": "9x9 Open League #121",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1449.4206189958652,
                        "deviation": 69.7033743288012,
                        "volatility": 0.06016120028799529
                    }
                },
                "ranking": 23.509309294900017,
                "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/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 95543,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 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": 692,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-07-13T19:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-07-13T08:27:36.244844Z",
            "ended": "2025-08-17T13:07:40.850265Z",
            "start_waiting": "2025-07-13T08:27:35.697307Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 100242,
            "name": "黃暐升 覃晉謙",
            "director": {
                "id": 818416,
                "username": "傳碁學園",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/225f58a6cdd437bb701ba1af0dd7678f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1898.3468207617877,
                        "deviation": 71.28817954667363,
                        "volatility": 0.06041644550084839
                    }
                },
                "ranking": 29.755630942351214,
                "professional": false,
                "ui_class": ""
            },
            "description": "黃暐升\n覃晉謙",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 27,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 900,
                "period_time": 20,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7533,
                "name": "傳碁 A班",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 36,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2023-02-18T11:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2023-02-18T10:06:02.663755Z",
            "ended": "2023-02-18T10:50:38.619127Z",
            "start_waiting": "2023-02-18T10:06:02.608971Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 124767,
            "name": "Hmmmmmmmm",
            "director": {
                "id": 1558538,
                "username": "Jerrygomaster",
                "country": "au",
                "icon": "https://user-uploads.online-go.com/d5fd7c1453ab796cef257b9830d79407-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 748.0256653976678,
                        "deviation": 67.12284185395168,
                        "volatility": 0.06002856355977597
                    }
                },
                "ranking": 8.196003470956546,
                "professional": false,
                "ui_class": ""
            },
            "description": "Hmmmmmmmmm…",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 623947,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 604800,
                "initial_time": 2419200,
                "max_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 14941,
                "name": "Jerrygomaster's Friends",
                "summary": "Please become my friend and if you do, you can be part of this group.\n",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 32,
                "icon": "https://user-uploads.online-go.com/8569728f4071061c0cfb394db2cb66e3-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-01-27T05:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-01-27T16:20:22.634990Z",
            "ended": "2025-03-09T13:22:51.105247Z",
            "start_waiting": "2025-01-27T16:20:22.538926Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/8569728f4071061c0cfb394db2cb66e3-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 46552,
            "name": "13x13 Double Elimination",
            "director": {
                "id": 623824,
                "username": "Frumpamine",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/49a4922ef8d601c2fe306b093af95c6b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n \n☆ This is a ‘Fast Correspondence Tournament’. Please, avoid delaying your games using the vacation feature or pause. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).\n \n☆ Does NOT pause on the weekend.\n \n☆ If this sounds like a good time to you, please join us!\n\n<HR><BR>\nTournaments are a great way to find people who are more competitive than your average opponent. A big part of improving your own skills is by having them tested by capable adversaries. If you would like to be apart of more Chinese ruleset tournaments, check out our group for weekly opportunities.<BR><BR>",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 45120,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 172800,
                "max_time": 259200,
                "time_increment": 43200,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3207,
                "name": "New Zealand Tournaments",
                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 592,
                "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-12-26T02:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-02-08T21:09:46.350202Z",
            "ended": "2020-06-23T09:58:03.619912Z",
            "start_waiting": "2020-02-08T21:09:45.750124Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 59762,
            "name": "2 Days/ move Tournament 19x19",
            "director": {
                "id": 526987,
                "username": "Gia",
                "country": "gr",
                "icon": "https://user-uploads.online-go.com/14567c9a0670b7d4a44606ba237f054d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1153.5817675722442,
                        "deviation": 64.27063315758396,
                        "volatility": 0.06007132758409125
                    }
                },
                "ranking": 18.224344381967658,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "This is a tournament open to everyone.\nSimple 2 days per move.\nVacation and pause NOT ALLOWED, you will be disqualified without prior notice.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 172800,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 172800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 43,
                "name": "Kyu Level Study Group",
                "summary": "A group for kyu level players! Join, play tournaments, and have fun. Thanks for being a part of our community!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8842,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-05-13T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-05-13T09:00:17.338668Z",
            "ended": "2020-06-25T09:44:45.987951Z",
            "start_waiting": "2020-05-13T09:00:14.258215Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 100095,
            "name": "first igc tourney (if we will)",
            "director": {
                "id": 1294749,
                "username": "Bali Song",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/f0ea6cd971422715ff5924690317b5eb?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 991.2307983344498,
                        "deviation": 69.1358266907902,
                        "volatility": 0.059983013694638466
                    }
                },
                "ranking": 14.712962568002377,
                "professional": false,
                "ui_class": ""
            },
            "description": "testing this feature",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "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": 12821,
                "name": "Inglemoor High School Go Club",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 11,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2023-02-15T06:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-02-15T06:00:06.265104Z",
            "ended": "2023-02-16T06:25:50.107436Z",
            "start_waiting": "2023-02-15T06:00:06.118273Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 135756,
            "name": "9x9 Open D.E. Cup #215",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1449.4206189958652,
                        "deviation": 69.7033743288012,
                        "volatility": 0.06016120028799529
                    }
                },
                "ranking": 23.509309294900017,
                "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/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 95543,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 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": 692,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-12-28T20:05:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-12-27T23:55:33.028288Z",
            "ended": null,
            "start_waiting": "2025-12-27T23:55:32.902552Z",
            "board_size": 9,
            "active_round": 2,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 134490,
            "name": "Play for best",
            "director": {
                "id": 1078350,
                "username": "Kingsboss",
                "country": "sg",
                "icon": "https://user-uploads.online-go.com/e821750bcfc53c45584de3305718ce18-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1466.2720977734025,
                        "deviation": 64.61752067849777,
                        "volatility": 0.05999204512237171
                    }
                },
                "ranking": 23.776906820008207,
                "professional": false,
                "ui_class": ""
            },
            "description": "Just join",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 133019,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 129600,
                "initial_time": 432000,
                "max_time": 1209600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 15851,
                "name": "Kingsboss group",
                "summary": "Vip group request to join!",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 4,
                "icon": "https://user-uploads.online-go.com/e821750bcfc53c45584de3305718ce18-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-11-19T10:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-11-19T10:00:07.453715Z",
            "ended": "2026-02-17T05:22:47.553843Z",
            "start_waiting": "2025-11-19T10:00:07.397919Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/e821750bcfc53c45584de3305718ce18-15.png",
            "player_count": 5,
            "ranked": true
        }
    ]
}