List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=351
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59727,
    "next": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=352",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=350",
    "results": [
        {
            "id": 72238,
            "name": "spring tournament",
            "director": {
                "id": 743533,
                "username": "ss76",
                "country": "ru",
                "icon": "https://secure.gravatar.com/avatar/13929beaec2a082c41c26666dd917e5a?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 865.69965614538,
                        "deviation": 63.39878919317945,
                        "volatility": 0.06003400172803372
                    }
                },
                "ranking": 11.578235639193064,
                "professional": false,
                "ui_class": ""
            },
            "description": "tournament for those who want to",
            "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": 3,
                "name": "OGS",
                "summary": "An open group for folks' who like OGS!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1784,
                "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2021-03-06T17:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-03-06T17:00:07.684610Z",
            "ended": "2021-03-29T23:29:00.399693Z",
            "start_waiting": "2021-03-06T17:00:06.939286Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/09ea48b349cad5d5f27e07f5e0177803-15.png",
            "player_count": 6,
            "ranked": true
        },
        {
            "id": 70373,
            "name": "Let's Go Double elimination",
            "director": {
                "id": 699769,
                "username": "jeroentjeb",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/bd4d71e7ea87028b6cc6540f291f4873-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1444.088679092032,
                        "deviation": 66.92702002967074,
                        "volatility": 0.06013059329546206
                    }
                },
                "ranking": 23.423991063112584,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Let's Go! \n\n\nHave fun!",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31680,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 28800,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 24,
                "name": "Double Digit Kyu Room",
                "summary": "For those of us working our way through to SDK. Whether its for your first time up the ladder and the 20th, lets find some opponents and camaraderie. ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 3662,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-01-31T07:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 10,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-01-31T07:00:54.896215Z",
            "ended": "2022-04-23T17:37:20.174914Z",
            "start_waiting": "2021-01-31T07:00:54.228449Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 40,
            "ranked": true
        },
        {
            "id": 19219,
            "name": "The other 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": "the other tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 60,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 60,
                "main_time": 60,
                "periods": 1
            },
            "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": 4487,
                "icon": "https://user-uploads.online-go.com/b1a8e87e33263bc92ccdc6303c0c184c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2016-07-22T19:50:00Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 0,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2016-08-21T03:56:55.228462Z",
            "ended": "2016-08-21T04:07:56.739111Z",
            "start_waiting": "2016-08-21T03:56:54.791036Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/b1a8e87e33263bc92ccdc6303c0c184c-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 78146,
            "name": "25k-10k Tournament Round Robin",
            "director": {
                "id": 1012312,
                "username": "charlie11",
                "country": "jp",
                "icon": "https://secure.gravatar.com/avatar/2dcdff4966c0103300ce0d6fbf4e22e8?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1161.564727199071,
                        "deviation": 67.2959124451604,
                        "volatility": 0.06009585569543345
                    }
                },
                "ranking": 18.38399410453256,
                "professional": false,
                "ui_class": ""
            },
            "description": "No words...",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 259200,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "per_move": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 9514,
                "name": "25k-10k (Double Digets Please)",
                "summary": "As long as your Double Digits or near Double Digits your welcome to join.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 57,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2021-07-31T16:00:00Z",
            "players_start": 1,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2021-07-31T16:00:53.716559Z",
            "ended": "2021-08-20T17:15:04.632237Z",
            "start_waiting": "2021-07-31T16:00:53.402778Z",
            "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": 135352,
            "name": "9x9 Mini League 10k-25k #352",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1265.6381320799273,
                        "deviation": 68.45146566167001,
                        "volatility": 0.06021111954537579
                    }
                },
                "ranking": 20.370459682660336,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 25kyu and 10kyu. Tournament will be started as soon as 5 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": true,
            "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": 698,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-12-21T20:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-12-15T21:57:53.012731Z",
            "ended": "2026-01-13T13:17:46.677309Z",
            "start_waiting": "2025-12-15T21:57:52.784597Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 48765,
            "name": "2019 Maio C",
            "director": {
                "id": 307866,
                "username": "swafaron",
                "country": "br",
                "icon": "https://user-uploads.online-go.com/c62da84b968b7d03ab1235c4e4988c13-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1568.7246028591371,
                        "deviation": 62.77870530874028,
                        "volatility": 0.05985028812148364
                    }
                },
                "ranking": 25.340451859744853,
                "professional": false,
                "ui_class": ""
            },
            "description": "2019 Maio C",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 31680,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 28800,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 1527,
                "name": "Brasil",
                "summary": "Ponto de encontro dos jogadores brasileiros",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 491,
                "icon": "https://user-uploads.online-go.com/94104bdcbaa52ac8e424a6fb2a6b03a4-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2019-05-31T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 13,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-05-31T23:00:23.591737Z",
            "ended": "2020-01-22T11:06:25.103395Z",
            "start_waiting": "2019-05-31T23:00:22.502831Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/94104bdcbaa52ac8e424a6fb2a6b03a4-15.png",
            "player_count": 13,
            "ranked": true
        },
        {
            "id": 73679,
            "name": "Simple Correspondence 19x19 DDK 2021 May",
            "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": "2021-05-01T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2021-05-01T15:00:10.905331Z",
            "ended": "2021-10-04T17:31:23.646543Z",
            "start_waiting": "2021-05-01T15:00:08.793936Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 106220,
            "name": "9x9 Mini League 10k-25k #172",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1265.6381320799273,
                        "deviation": 68.45146566167001,
                        "volatility": 0.06021111954537579
                    }
                },
                "ranking": 20.370459682660336,
                "professional": false,
                "ui_class": ""
            },
            "description": "Special league for players between 25kyu and 10kyu. Tournament will be started as soon as 5 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": true,
            "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": 698,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2023-08-13T19:05:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2023-08-12T06:25:53.539573Z",
            "ended": "2023-09-02T08:21:36.477284Z",
            "start_waiting": "2023-08-12T06:25:53.392271Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 42103,
            "name": "DDK.NL 🎃 Halloween 🎃 Tournament",
            "director": {
                "id": 463810,
                "username": "SuzieKyu",
                "country": "nl",
                "icon": "https://user-uploads.online-go.com/62a582e29c917f3dfcb81bce64a13f7a-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1171.4995125731932,
                        "deviation": 63.025646037873635,
                        "volatility": 0.06000597450469722
                    }
                },
                "ranking": 18.5811525604583,
                "professional": false,
                "ui_class": ""
            },
            "description": "DDK Halloween Swiss tournament\nTake a chance of getting yourself a ranking if you don't have one!",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "pause_on_weekends": false,
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400,
                "speed": "correspondence"
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 2979,
                "name": "Internatio.NL Go Club",
                "summary": "Virtuele DDK club voor Nederlandse spelers en hun vrienden",
                "require_invitation": true,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 64,
                "icon": "https://user-uploads.online-go.com/cbf3d1c63e4b51aee158455500f9a9e3-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2018-10-31T22:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2018-10-31T22:00:49.951616Z",
            "ended": "2021-09-24T13:16:31.085477Z",
            "start_waiting": "2018-10-31T22:00:47.753314Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/cbf3d1c63e4b51aee158455500f9a9e3-15.png",
            "player_count": 36,
            "ranked": true
        },
        {
            "id": 50317,
            "name": "Annual Tournament: 2020",
            "director": {
                "id": 511520,
                "username": "Luzaich",
                "country": "_Klingon",
                "icon": "https://user-uploads.online-go.com/791d03047ef7c98ddfba71f668f1c27d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1135.9303624600018,
                        "deviation": 62.807966959401575,
                        "volatility": 0.060044930287239416
                    }
                },
                "ranking": 17.867379140783264,
                "professional": false,
                "ui_class": ""
            },
            "description": "I feel like doing annual tournaments for some reason.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "chinese",
            "time_per_move": 265920,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 259200,
                "initial_time": 604800,
                "max_time": 1209600
            },
            "is_open": true,
            "exclude_provisional": true,
            "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": 8891,
                "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2020-01-02T01:00:00Z",
            "players_start": 32,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 20,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-01-02T01:00:39.058915Z",
            "ended": null,
            "start_waiting": "2020-01-02T01:00:34.799676Z",
            "board_size": 19,
            "active_round": 13,
            "icon": "https://user-uploads.online-go.com/36b3f6c2ac8b8f0da8b168b3cc142a1b-15.png",
            "player_count": 88,
            "ranked": true
        }
    ]
}