List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=players_start&page=5513
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 58823,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=players_start&page=5514",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=players_start&page=5512",
    "results": [
        {
            "id": 117390,
            "name": "1st WB-Honinbo Title Tournament 2024",
            "director": {
                "id": 1051076,
                "username": "Qwentum",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/ec85d2c66ad78a73ad60a339509b683b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1666.9850527582553,
                        "deviation": 68.21639202911662,
                        "volatility": 0.05969688678386694
                    }
                },
                "ranking": 26.746900080081467,
                "professional": false,
                "ui_class": ""
            },
            "description": "1st WB-Honinbo Title Tournament 2024",
            "schedule": null,
            "title": null,
            "tournament_type": "s_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": false,
            "group": {
                "id": 10103,
                "name": "World battles",
                "summary": "World tournament s",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 48,
                "icon": "https://user-uploads.online-go.com/82ea34b6c5f487db027b73c2d1b9e9ca-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-07-01T00:00:00Z",
            "players_start": 20,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-07-01T00:01:07.554213Z",
            "ended": null,
            "start_waiting": "2024-07-01T00:00:59.399522Z",
            "board_size": 19,
            "active_round": 2,
            "icon": "https://user-uploads.online-go.com/82ea34b6c5f487db027b73c2d1b9e9ca-15.png",
            "player_count": 103,
            "ranked": true
        },
        {
            "id": 19218,
            "name": "The tournament",
            "director": {
                "id": 347221,
                "username": "Alectheawesome",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/8cc82c3bd72324f5d5a9593a44dc37c8?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 990.4079179848546,
                        "deviation": 84.17537818788169,
                        "volatility": 0.06001435971211636
                    }
                },
                "ranking": 14.693736378050405,
                "professional": false,
                "ui_class": ""
            },
            "description": "super",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 0,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 60,
                "max_time": 604800,
                "time_increment": 0
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 28,
                "name": "Teaching League",
                "summary": "The teaching league is a group for players who want to improve their game by playing, as well as by teaching weaker players.\n\nQuick rule summary: no handicap, moderate time settings, stronger player creates a review.\n\nPlease add \"TL\" to the game name.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 4469,
                "icon": "https://user-uploads.online-go.com/b1a8e87e33263bc92ccdc6303c0c184c-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2016-07-22T19:50:00Z",
            "players_start": 20,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 10,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-08-09T05:20:15.642958Z",
            "ended": "2016-08-09T05:40:20.807439Z",
            "start_waiting": "2016-08-09T05:20:13.958672Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/b1a8e87e33263bc92ccdc6303c0c184c-15.png",
            "player_count": 20,
            "ranked": true
        },
        {
            "id": 61067,
            "name": "Tournament 1",
            "director": {
                "id": 736006,
                "username": "鍾宛彤",
                "country": "un",
                "icon": "https://user-uploads.online-go.com/128c9480828be009543e33745dc126ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1851.916304398883,
                        "deviation": 66.88854223337405,
                        "volatility": 0.06012199259618246
                    }
                },
                "ranking": 29.182379764371195,
                "professional": false,
                "ui_class": ""
            },
            "description": "kyu players only Have fun^^",
            "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": true,
            "group": {
                "id": 5603,
                "name": "High level players",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 19,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2020-05-26T05:00:00Z",
            "players_start": 20,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-06-02T18:40:43.021869Z",
            "ended": "2021-05-27T06:09:46.571240Z",
            "start_waiting": "2020-06-02T18:40:42.263393Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 20,
            "ranked": true
        },
        {
            "id": 16489,
            "name": "600 to 1 Byo-Yomi",
            "director": {
                "id": 153455,
                "username": "El0m",
                "country": "gb",
                "icon": "https://user-uploads.online-go.com/018b099d6b5f111ad780b468738dc998-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1295.7038814112566,
                        "deviation": 70.83331711939027,
                        "volatility": 0.0603648964543371
                    }
                },
                "ranking": 20.913967003155264,
                "professional": false,
                "ui_class": ""
            },
            "description": "A correspondence experimentive representation of 1 hour + 5x60 seconds per move, but at a 600 to 1 ratio. All players welcome!",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 60000,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 36000,
                "main_time": 2160000,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 326,
                "name": "European Weekly Cup",
                "summary": "Our goal is to provide tournaments with a schedule oriented for european players. Non-european players are welcome !!!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 251,
                "icon": "https://user-uploads.online-go.com/6811f1a03590402ce5debeda4cb7b2f7-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2016-04-17T15:30:00Z",
            "players_start": 20,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2016-04-17T15:30:02.167686Z",
            "ended": "2017-01-09T14:07:35.043659Z",
            "start_waiting": "2016-04-17T15:30:00.448936Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6811f1a03590402ce5debeda4cb7b2f7-15.png",
            "player_count": 21,
            "ranked": true
        },
        {
            "id": 129020,
            "name": "Monthly Simultaneous McMahon 2025-06-16 17:00",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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": 10,
                "name": "Monthly Simultaneous McMahon",
                "rrule": "DTSTART:20260301T170000Z\nRRULE:FREQ=MONTHLY",
                "active": true,
                "created": "2015-12-16T02:47:16.592231Z",
                "last_run": "2026-03-01T17:00:40.802816Z",
                "lead_time_seconds": 1296000,
                "tournament_type": "s_mcmahon",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "max_time": 259200,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 20,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": 3,
                    "upper_bar": "25",
                    "lower_bar": "15",
                    "group_size": 5,
                    "maximum_players": 200
                },
                "next_run": "2026-04-01T17:00:00Z",
                "base_points": "50.0"
            },
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "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": "2025-06-16T17:00:40.840940Z",
            "players_start": 20,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-06-16T17:01:28.164493Z",
            "ended": null,
            "start_waiting": "2025-06-16T17:01:26.297595Z",
            "board_size": 19,
            "active_round": 3,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 35,
            "ranked": true
        },
        {
            "id": 113393,
            "name": "Monthly Simultaneous McMahon 2024-03-16 17:00",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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": 10,
                "name": "Monthly Simultaneous McMahon",
                "rrule": "DTSTART:20260301T170000Z\nRRULE:FREQ=MONTHLY",
                "active": true,
                "created": "2015-12-16T02:47:16.592231Z",
                "last_run": "2026-03-01T17:00:40.802816Z",
                "lead_time_seconds": 1296000,
                "tournament_type": "s_mcmahon",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "max_time": 259200,
                    "time_increment": 86400
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 20,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": 3,
                    "upper_bar": "25",
                    "lower_bar": "15",
                    "group_size": 5,
                    "maximum_players": 200
                },
                "next_run": "2026-04-01T17:00:00Z",
                "base_points": "50.0"
            },
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "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": "2024-03-16T17:00:30.747832Z",
            "players_start": 20,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-03-16T17:00:39.190474Z",
            "ended": "2025-05-04T17:11:44.852875Z",
            "start_waiting": "2024-03-16T17:00:34.962280Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 57,
            "ranked": true
        },
        {
            "id": 26564,
            "name": "FSTS Best Of 600",
            "director": {
                "id": 87790,
                "username": "WiseBear",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/87e96797186d0c4042434c29195d8f12-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1104.0021061102002,
                        "deviation": 62.08308547890164,
                        "volatility": 0.06028822213904829
                    }
                },
                "ranking": 17.207368885691388,
                "professional": false,
                "ui_class": ""
            },
            "description": "Соревнование проводится в честь 600 участников нашей группы.\n\nThe competition is held in honor of 600 members of our group.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 87840,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 129600,
                "max_time": 259200,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 353,
                "name": "Four Seasons Tournament Series",
                "summary": "Серия турниров \"Четыре Сезона\"",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": true,
                "member_count": 623,
                "icon": "https://user-uploads.online-go.com/da3625d8ecb510c14d65689ea409862b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2017-05-15T12:33:00Z",
            "players_start": 21,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2017-05-15T12:33:34.134920Z",
            "ended": "2019-03-24T18:49:57.406201Z",
            "start_waiting": "2017-05-15T12:33:27.500422Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/da3625d8ecb510c14d65689ea409862b-15.png",
            "player_count": 85,
            "ranked": true
        },
        {
            "id": 112018,
            "name": "Go for the win!",
            "director": {
                "id": 699769,
                "username": "jeroentjeb",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/bd4d71e7ea87028b6cc6540f291f4873-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1391.3295963381988,
                        "deviation": 67.60461364727192,
                        "volatility": 0.06011018506629913
                    }
                },
                "ranking": 22.562380088253384,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Just Go for it!",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 45251,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 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": 17825,
                "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-02-02T17:00:00Z",
            "players_start": 21,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 6,
            "max_ranking": 24,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2024-02-02T14:14:21.078715Z",
            "ended": null,
            "start_waiting": "2024-02-02T14:14:20.562214Z",
            "board_size": 19,
            "active_round": 11,
            "icon": "https://user-uploads.online-go.com/88a1228e25c41184ceaf4c4683299256-15.png",
            "player_count": 12,
            "ranked": true
        },
        {
            "id": 84143,
            "name": "Battle of Santa Claus 2022",
            "director": {
                "id": 1051076,
                "username": "Qwentum",
                "country": "ru",
                "icon": "https://user-uploads.online-go.com/ec85d2c66ad78a73ad60a339509b683b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1666.9850527582553,
                        "deviation": 68.21639202911662,
                        "volatility": 0.05969688678386694
                    }
                },
                "ranking": 26.746900080081467,
                "professional": false,
                "ui_class": ""
            },
            "description": "Battle of Santa Claus",
            "schedule": null,
            "title": null,
            "tournament_type": "s_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": 10103,
                "name": "World battles",
                "summary": "World tournament s",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 48,
                "icon": "https://user-uploads.online-go.com/82ea34b6c5f487db027b73c2d1b9e9ca-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-12-30T23:00:00Z",
            "players_start": 22,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-12-31T19:52:25.250314Z",
            "ended": "2022-12-06T22:33:39.925457Z",
            "start_waiting": "2021-12-31T19:52:24.105840Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/82ea34b6c5f487db027b73c2d1b9e9ca-15.png",
            "player_count": 18,
            "ranked": true
        },
        {
            "id": 30138,
            "name": "Strange Elimination 22 players",
            "director": {
                "id": 211504,
                "username": "Why am I playing",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/5871c4b800476f93d2a66a0cb3e618cb-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1559.0919502754434,
                        "deviation": 69.84935092039798,
                        "volatility": 0.06153589767848298
                    }
                },
                "ranking": 25.197862543190354,
                "professional": false,
                "ui_class": ""
            },
            "description": "Start when Tournament have 22 players",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 454,
                "name": "Tournament Club",
                "summary": "Welcome to the TOURNAMENT CLUB, a remake of the 'Kyu Tournament Group'.\n\nIn this group, you will be able to participate in competitions for your level so that you will have a fair chance of winning! We also have special competitions that require special ru",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 77,
                "icon": "https://user-uploads.online-go.com/f9bc230408f387605b22aa31ff5d0022-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2017-10-10T03:00:00Z",
            "players_start": 22,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 30,
            "max_ranking": 35,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2017-10-08T12:50:32.730974Z",
            "ended": "2018-10-12T12:24:16.379797Z",
            "start_waiting": "2017-10-08T12:50:18.514999Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/f9bc230408f387605b22aa31ff5d0022-15.png",
            "player_count": 22,
            "ranked": true
        }
    ]
}