List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=442
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59753,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=443",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=subsequent_pairing_method&page=441",
    "results": [
        {
            "id": 22264,
            "name": "Correspondence 13x13 RoundRobin 2016-11-17 01:00",
            "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 Sitewide Tournament",
            "schedule": {
                "id": 7,
                "name": "Correspondence 13x13 RoundRobin",
                "rrule": "DTSTART:20260522T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T06:00:14.582400Z",
                "last_run": "2026-05-22T19:00:16.590557Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 13,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "pause_on_weekends": true,
                    "max_time": 259200,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slaughter",
                "subsequent_pairing_method": "slaughter",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 10
                },
                "next_run": "2026-05-25T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 259200,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2016-11-17T01:00:10.401395Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-11-17T01:00:32.890947Z",
            "ended": "2017-01-25T20:05:29.649765Z",
            "start_waiting": "2016-11-17T01:00:30.846230Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 69233,
            "name": "9x9 round robin for improving life & dead",
            "director": {
                "id": 854600,
                "username": "Dennis H",
                "country": "nl",
                "icon": "https://secure.gravatar.com/avatar/8831ff54444dab48d7b94ba5565a396d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1398.9523162891342,
                        "deviation": 63.02745671877982,
                        "volatility": 0.05992617775704167
                    }
                },
                "ranking": 22.688866523237937,
                "professional": false,
                "ui_class": ""
            },
            "description": "Games on 9x9 board without analysis is a good way for improving our life & dead reading, and this tournament is easy way to quickly play some games!",
            "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": true,
            "group": {
                "id": 5017,
                "name": "Simple Correspondence",
                "summary": "2 days per move. No Analysis.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 66,
                "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-12-22T11:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 10,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-12-22T12:45:21.268339Z",
            "ended": "2021-01-15T13:02:38.315055Z",
            "start_waiting": "2020-12-22T12:45:20.448937Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-15.png",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 21174,
            "name": "Correspondence 9x9 RoundRobin 2016-10-04 01:00",
            "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 Sitewide Tournament",
            "schedule": {
                "id": 5,
                "name": "Correspondence 9x9 RoundRobin",
                "rrule": "DTSTART:20260523T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T05:56:18.340749Z",
                "last_run": "2026-05-23T19:00:16.314067Z",
                "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": "2026-05-26T19:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 259200,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2016-10-04T01:00:01.135379Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-10-04T01:00:19.054437Z",
            "ended": "2016-11-01T14:32:59.460816Z",
            "start_waiting": "2016-10-04T01:00:18.013490Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 107205,
            "name": "Чат игроков в Го. 13х13 🐉 09.09.23 DE.MO",
            "director": {
                "id": 803169,
                "username": "Tg45",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/d861f559b9c8e292905d8730862d1569-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1529.5125555636714,
                        "deviation": 60.74692652892904,
                        "volatility": 0.06002852115496057
                    }
                },
                "ranking": 24.75443644416335,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "live 13х13. Вылет после 2х поражений.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 30,
                "initial_time": 60,
                "max_time": 1200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 11497,
                "name": "Чат игроков в Го (weiqi, baduk, igo)",
                "summary": "Мы — группа игроков из телеграмм чата «Чат для игроков в Го (weiqi, baduk, igo)». Здесь мы играем между собой и организовываем турниры для игроков всех уровней.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 366,
                "icon": "https://user-uploads.online-go.com/2d3b4fb3fa64f817ed22ed171b88d712-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-09-09T07:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2023-09-09T07:00:55.916778Z",
            "ended": "2023-09-09T08:19:11.329741Z",
            "start_waiting": "2023-09-09T07:00:55.279033Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/2d3b4fb3fa64f817ed22ed171b88d712-15.png",
            "player_count": 19,
            "ranked": true
        },
        {
            "id": 129049,
            "name": "Тренировочный турнир команды \"Буран\", июнь 2025",
            "director": {
                "id": 182494,
                "username": "𝖎𝖒𝖙𝖖𝖔𝖎",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/35c19d35d44885ef5dffd8148b90c4e3-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1855.647724456924,
                        "deviation": 62.63469876664262,
                        "volatility": 0.05985793805785842
                    }
                },
                "ranking": 29.22897769381339,
                "professional": false,
                "ui_class": ""
            },
            "description": "Тренировочный турнир команды \"Буран\", июнь 2025\nУчастники: члены команды \"Буран\" и их родители.",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 15768,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 172800,
                "max_time": 345600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 15389,
                "name": "Команда \"Буран\"",
                "summary": "Играем в Го в Тольятти и в Ташле!",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 7,
                "icon": "https://user-uploads.online-go.com/b39233310f7ac2cf5bc299b4632fcea6-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-06-17T12:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2025-06-17T12:00:26.475152Z",
            "ended": "2025-06-19T12:16:27.112595Z",
            "start_waiting": "2025-06-17T12:00:26.383205Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/b39233310f7ac2cf5bc299b4632fcea6-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 101957,
            "name": "Fast tourney for DDKs",
            "director": {
                "id": 1330304,
                "username": "Domitian",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/f81572e976906086c0035eb83a506593-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1119.1258056271229,
                        "deviation": 61.990211306418274,
                        "volatility": 0.05997241147091082
                    }
                },
                "ranking": 17.52234765333489,
                "professional": false,
                "ui_class": ""
            },
            "description": "Fast tourney. 1 move per day minimum.",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "per_move": 86400
            },
            "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": 17979,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2023-04-10T13:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-04-10T13:00:02.052266Z",
            "ended": "2023-06-06T15:42:56.101807Z",
            "start_waiting": "2023-04-10T13:00:01.923559Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 69406,
            "name": "1st League match(13×13)",
            "director": {
                "id": 747721,
                "username": "Hayatyan",
                "country": "jp",
                "icon": "https://user-uploads.online-go.com/6df180d3c398999dd6e22f42337c182c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1803.5150999748641,
                        "deviation": 74.54569070298652,
                        "volatility": 0.06005903177714745
                    }
                },
                "ranking": 28.569290228718142,
                "professional": false,
                "ui_class": ""
            },
            "description": "1st League match(13×13)",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6299,
                "name": "GoLeaguematch group",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 8,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-12-27T03:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-12-27T03:00:07.863894Z",
            "ended": "2021-02-16T22:19:06.649605Z",
            "start_waiting": "2020-12-27T03:00:07.282920Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 70007,
            "name": "test2.2",
            "director": {
                "id": 751480,
                "username": "IceTsunami",
                "country": "_Tibet",
                "icon": "https://user-uploads.online-go.com/af50490dfea3295e8e9172305d92e28f-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1196.2312656807467,
                        "deviation": 81.32419211783879,
                        "volatility": 0.06000695930662531
                    }
                },
                "ranking": 19.06478939401627,
                "professional": false,
                "ui_class": ""
            },
            "description": "teststst",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 0,
            "time_control_parameters": {
                "system": "none",
                "time_control": "none",
                "speed": "correspondence",
                "pause_on_weekends": false
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7212,
                "name": "TheLeagueOfExtraordinaryPhysicists",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 6,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-01-11T17:05:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-01-11T17:05:00.597049Z",
            "ended": "2021-01-11T17:06:02.162243Z",
            "start_waiting": "2021-01-11T17:05:00.502461Z",
            "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": 66511,
            "name": "Eat the other cookie to crumbs",
            "director": {
                "id": 759283,
                "username": "Space Kitty",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/bb87f907a2d0d254ec22945acb6d1d15?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 972.4622734271871,
                        "deviation": 77.60045066283931,
                        "volatility": 0.06001983022826096
                    }
                },
                "ranking": 14.27042438423444,
                "professional": false,
                "ui_class": ""
            },
            "description": "A tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 631680,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 604800,
                "initial_time": 2419200,
                "max_time": 2419200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 6248,
                "name": "Go Cookies!",
                "summary": "The Go branch of the Cookies club. Other branches include Chess Cookies!",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 4,
                "icon": "https://user-uploads.online-go.com/64912bd9b9f46f16b8668a959cfd1933-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-10-11T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-10-11T00:00:17.577794Z",
            "ended": "2021-02-17T23:59:10.142603Z",
            "start_waiting": "2020-10-11T00:00:17.143864Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/64912bd9b9f46f16b8668a959cfd1933-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 66198,
            "name": "luigi",
            "director": {
                "id": 853331,
                "username": "lidzxx08",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/189093778dd981facae0abb2b92a30b5?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500.0,
                        "deviation": 350.0,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "soup haha",
            "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",
                "pause_on_weekends": false,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 7008,
                "name": "luigi",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 2,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-10-03T22:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-10-04T16:14:35.430711Z",
            "ended": "2021-03-04T23:19:16.480592Z",
            "start_waiting": "2020-10-04T16:14:35.077122Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 4,
            "ranked": true
        }
    ]
}