List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=player_count&page=5007
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 60056,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=player_count&page=5008",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=player_count&page=5006",
    "results": [
        {
            "id": 65111,
            "name": "Blitz 13x13 Swiss Tournament 2020-09-05 19:30",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1125.8827017028436,
                        "deviation": 78.19731452501959,
                        "volatility": 0.06006087171771568
                    }
                },
                "ranking": 17.66169912212786,
                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
            "schedule": {
                "id": 3,
                "name": "Blitz 13x13 Swiss Tournament",
                "rrule": "DTSTART:20260626T230000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:27:45.234995Z",
                "last_run": "2026-06-26T23:00:16.436683Z",
                "lead_time_seconds": 1800,
                "tournament_type": "swiss",
                "handicap": 0,
                "rules": "japanese",
                "size": 13,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 10,
                    "main_time": 300,
                    "periods": 5
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 6,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 40
                },
                "next_run": "2026-06-27T03:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 13,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 10,
                "main_time": 300,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-09-05T19:30:46.677416Z",
            "players_start": 6,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-09-05T19:31:47.188147Z",
            "ended": "2020-09-05T20:17:59.974941Z",
            "start_waiting": "2020-09-05T19:31:46.665985Z",
            "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": 63620,
            "name": "Play with bot 08 9x9",
            "director": {
                "id": 798997,
                "username": "noob_bot",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/c0482108c2d871387c75860f532c7f8c-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1466.2345984363126,
                        "deviation": 59.305600503257814,
                        "volatility": 0.0554640834944972
                    }
                },
                "ranking": 23.776314760215264,
                "professional": false,
                "ui_class": "bot"
            },
            "description": "Fast correspondence tournament, human/bot are welcome.\n\nGame result is NOT important.\n\nThis is running for debug & test.",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 15360,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 86400,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 6332,
                "name": "noob_bot",
                "summary": "Play with bots",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 884,
                "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-07-30T00:00:00Z",
            "players_start": 6,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-07-30T00:00:07.826500Z",
            "ended": "2020-08-10T15:48:54.328565Z",
            "start_waiting": "2020-07-30T00:00:07.421181Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/d3277278f721d0b587ac5dcb628ac2d1-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 60394,
            "name": "Mecha crow",
            "director": {
                "id": 747928,
                "username": "ζŽε»ΊζΎ”2",
                "country": "_Olimpic_Movement",
                "icon": "https://user-uploads.online-go.com/7dfcf7f08dc31d02b156957bca67bbdd-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1174.3551066903533,
                        "deviation": 64.4887180154099,
                        "volatility": 0.06015229462096002
                    }
                },
                "ranking": 18.63751328794923,
                "professional": false,
                "ui_class": ""
            },
            "description": "Very fun",
            "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": true,
            "group": {
                "id": 4456,
                "name": "Our Go House",
                "summary": "Hello this is Our Go House πŸ”°πŸ”°\nπŸ˜ƒπŸ™ƒπŸ˜ŠπŸ‘‹ YEET",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 160,
                "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-05-12T01:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-05-19T17:34:39.717963Z",
            "ended": "2020-11-18T21:30:23.215109Z",
            "start_waiting": "2020-05-19T17:34:37.347311Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/bf53577eefa2af10bcf48655c23a2b4a-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 60076,
            "name": "Correspondence 19x19 RoundRobin 2020-05-05 19:00",
            "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": 6,
                "name": "Correspondence 19x19 RoundRobin",
                "rrule": "DTSTART:20260626T190000Z\nRRULE:FREQ=DAILY;INTERVAL=3",
                "active": true,
                "created": "2015-02-20T05:58:31.027016Z",
                "last_run": "2026-06-26T19:00:16.622132Z",
                "lead_time_seconds": 86400,
                "tournament_type": "roundrobin",
                "handicap": 0,
                "rules": "japanese",
                "size": 19,
                "time_control_parameters": {
                    "time_control": "fischer",
                    "initial_time": 259200,
                    "pause_on_weekends": true,
                    "max_time": 432000,
                    "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": "2026-06-29T19:00:00Z",
                "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,
                "pause_on_weekends": true,
                "max_time": 432000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-05-05T19:00:37.851174Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-05-05T19:01:43.640849Z",
            "ended": "2021-04-04T17:31:44.134898Z",
            "start_waiting": "2020-05-05T19:01:37.321543Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 63510,
            "name": "13x13 padawans",
            "director": {
                "id": 362737,
                "username": "seranhelo",
                "country": "co",
                "icon": "https://user-uploads.online-go.com/c6280536610b91d50418b68e10fc8081-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1315.4110560105903,
                        "deviation": 60.784797360228325,
                        "volatility": 0.05977725254366489
                    }
                },
                "ranking": 21.26341906930818,
                "professional": false,
                "ui_class": ""
            },
            "description": "al menos tres jugadas por dΓ­a",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 29760,
            "time_control_parameters": {
                "system": "canadian",
                "time_control": "canadian",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 86400,
                "period_time": 86400,
                "stones_per_period": 3
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4667,
                "name": "Universidad El Bosque",
                "summary": "UB GO",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 71,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-09-05T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-09-05T23:00:57.295149Z",
            "ended": "2020-09-21T19:34:37.290514Z",
            "start_waiting": "2020-09-05T23:00:55.276082Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 64998,
            "name": "Simple Correspondence 19x19 SDK 2020 October",
            "director": {
                "id": 302584,
                "username": "koast",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/e5b52e887c6f66d70b3f2c72a0d4eb19-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1518.190018088078,
                        "deviation": 64.08013528375135,
                        "volatility": 0.05996666523783403
                    }
                },
                "ranking": 24.58242625475131,
                "professional": false,
                "ui_class": ""
            },
            "description": "No Conditional Moves",
            "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": false,
            "time_start": "2020-10-01T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-10-01T16:00:35.333956Z",
            "ended": "2020-12-24T12:32:19.211513Z",
            "start_waiting": "2020-10-01T16:00:33.582249Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 65864,
            "name": "Fast Correspondence 2020-10-03",
            "director": {
                "id": 784,
                "username": "mlopezviedma",
                "country": "ar",
                "icon": "https://user-uploads.online-go.com/3e911828e4e25e61f8faede9d9277323-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1523.6905157613091,
                        "deviation": 61.871308506532216,
                        "volatility": 0.059736468741597874
                    }
                },
                "ranking": 24.66614858276941,
                "professional": false,
                "ui_class": "supporter moderator"
            },
            "description": "Please, avoid delaying your games using the vacation feature.\n\nAnalysis is enabled to allow the use of conditional moves.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 30720,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 28800,
                "initial_time": 172800,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 508,
                "name": "Fast Correspondence",
                "summary": "Tournaments for people who like to play quick correspondence games.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 828,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-10-03T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-10-03T00:00:56.382054Z",
            "ended": "2020-11-08T11:34:04.439988Z",
            "start_waiting": "2020-10-03T00:00:54.552482Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 57823,
            "name": "Kikinda",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 789.792021382491,
                        "deviation": 64.86396886901105,
                        "volatility": 0.059924389565863295
                    }
                },
                "ranking": 9.453797542761778,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 91200,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "main_time": 432000,
                "period_time": 86400,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 27,
                "name": "Serbian Go Players",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 81,
                "icon": "https://user-uploads.online-go.com/a4c7afeabd5c537f0916589346c203bb-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-03-25T16:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 7,
            "max_ranking": 13,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-03-25T16:00:56.043738Z",
            "ended": "2021-01-21T19:38:47.954229Z",
            "start_waiting": "2020-03-25T16:00:55.057408Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/a4c7afeabd5c537f0916589346c203bb-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 64999,
            "name": "Simple Correspondence 19x19 DDK 2020 October",
            "director": {
                "id": 302584,
                "username": "koast",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/e5b52e887c6f66d70b3f2c72a0d4eb19-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1518.190018088078,
                        "deviation": 64.08013528375135,
                        "volatility": 0.05996666523783403
                    }
                },
                "ranking": 24.58242625475131,
                "professional": false,
                "ui_class": ""
            },
            "description": "No Conditional Moves",
            "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": false,
            "time_start": "2020-10-01T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-10-01T16:00:37.143652Z",
            "ended": "2020-12-20T20:24:31.939852Z",
            "start_waiting": "2020-10-01T16:00:35.378394Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 65000,
            "name": "Simple Correspondence 13x13 DDK 2020 October",
            "director": {
                "id": 302584,
                "username": "koast",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/e5b52e887c6f66d70b3f2c72a0d4eb19-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1518.190018088078,
                        "deviation": 64.08013528375135,
                        "volatility": 0.05996666523783403
                    }
                },
                "ranking": 24.58242625475131,
                "professional": false,
                "ui_class": ""
            },
            "description": "No Conditional Moves",
            "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": false,
            "time_start": "2020-10-01T16:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-10-01T16:00:39.402620Z",
            "ended": "2020-11-23T13:17:10.951377Z",
            "start_waiting": "2020-10-01T16:00:37.597465Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-15.png",
            "player_count": 10,
            "ranked": true
        }
    ]
}