List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=5808
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 58888,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=5809",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-max_ranking&page=5807",
    "results": [
        {
            "id": 761,
            "name": "Happy Valley Go Open 6",
            "director": {
                "id": 13725,
                "username": "Aznviolin",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/40b562d6fabfb44fb3e28022dd650f9e?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1315.5817230678103,
                        "deviation": 65.38647225905848,
                        "volatility": 0.059752988395153216
                    }
                },
                "ranking": 21.266422454503005,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 432000,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 384,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 12,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2009-10-14T02:21:58Z",
            "ended": "2009-10-14T00:21:58Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 131033,
            "name": "Kranj 112",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 788.4782417507043,
                        "deviation": 64.76496024965462,
                        "volatility": 0.0599203180748189
                    }
                },
                "ranking": 9.415256608156199,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 38051,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 36000,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 374,
                "name": "Slovenija",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 55,
                "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-08-07T15:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 6,
            "max_ranking": 12,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-08-07T15:00:53.021905Z",
            "ended": null,
            "start_waiting": "2025-08-07T15:00:52.593490Z",
            "board_size": 19,
            "active_round": 3,
            "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-15.png",
            "player_count": 25,
            "ranked": true
        },
        {
            "id": 1958,
            "name": "jwnoonan's mini-tournament",
            "director": {
                "id": 44124,
                "username": "jwnoonan",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/29c7ae2da9743121aef878d9cce49bdf?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1207.091731634171,
                        "deviation": 64.51194755807354,
                        "volatility": 0.05998711540784433
                    }
                },
                "ranking": 19.27401761554196,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 384,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 12,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2013-09-06T01:47:21Z",
            "ended": "2013-09-05T23:47:21Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 858,
            "name": "Dahu's mini-tournament #3 : handicap training",
            "director": {
                "id": 24210,
                "username": "Dahu",
                "country": "fr",
                "icon": "https://secure.gravatar.com/avatar/6bf2a6496cf94cee932706903dabd142?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1194.6059180411326,
                        "deviation": 63.24150893002587,
                        "volatility": 0.060013063800336906
                    }
                },
                "ranking": 19.033313554582463,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "chinese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 384,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 1,
            "max_ranking": 12,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2010-01-22T04:29:09Z",
            "ended": "2010-01-22T03:29:09Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 83448,
            "name": "PG DDK 13x13 25k-18k January 2022",
            "director": {
                "id": 335825,
                "username": "Petrich0r",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/5646a0982ac7b74262b8838271d83830-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 926.8084325955595,
                        "deviation": 64.20317662774292,
                        "volatility": 0.060036609847286614
                    }
                },
                "ranking": 13.157270750685203,
                "professional": false,
                "ui_class": ""
            },
            "description": "If your rank changes to be outside the tournament Rank Restriction, please move yourself to the appropriate tournament. Enjoy your games.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "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": 259200
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 7228,
                "name": "DDK Proving Grounds (Double Digit Kyu)",
                "summary": "A place for DDK's to play against other DDK's without fear of SDK's trying to hop in. We do B League (25k-18k) & A League (17k-10k) tournaments monthly.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 645,
                "icon": "https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-01-01T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 12,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2022-01-01T09:00:37.958585Z",
            "ended": "2022-03-24T21:20:57.964776Z",
            "start_waiting": "2022-01-01T09:00:37.832311Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 1045,
            "name": "Practice tournament",
            "director": {
                "id": 24747,
                "username": "Sirus",
                "country": "ca",
                "icon": "https://secure.gravatar.com/avatar/418420682984b3264088b6795d243f0d?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1817.7326072789356,
                        "deviation": 67.73356926698156,
                        "volatility": 0.06003526086795445
                    }
                },
                "ranking": 28.751071212439047,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 384,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 12,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2010-01-19T01:16:34Z",
            "ended": "2010-01-19T00:16:34Z",
            "start_waiting": null,
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 123969,
            "name": "🐝bee",
            "director": {
                "id": 1583188,
                "username": "timgomaster",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/cfd9c46d7a0a0766bb82efc23acff31e?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 780.5746921690352,
                        "deviation": 143.798311020381,
                        "volatility": 0.06001576167282928
                    }
                },
                "ranking": 9.182034750117229,
                "professional": false,
                "ui_class": ""
            },
            "description": "Good morning my friend",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 14323,
                "name": "Epping West Thursday Go Class",
                "summary": "This group is for Epping West Thursday Go Class students who are learning how to play Go.\n",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 13,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2025-01-05T05:21:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 12,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-01-05T05:21:36.765206Z",
            "ended": "2025-01-21T01:22:42.579791Z",
            "start_waiting": "2025-01-05T05:21:36.716788Z",
            "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": 538,
            "name": "Wakizashi's mini-tournament",
            "director": {
                "id": 17528,
                "username": "Wakizashi",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/c7f7f308ee310f29336ab9d0f2af9a10?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1173.8774904178513,
                        "deviation": 66.14039437273972,
                        "volatility": 0.06000977713609026
                    }
                },
                "ranking": 18.62809614854446,
                "professional": false,
                "ui_class": ""
            },
            "description": "",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "time_control": "fischer",
                "initial_time": 259200,
                "max_time": 604800,
                "time_increment": 86400
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 78,
                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 384,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": null,
            "players_start": null,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 12,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2008-10-25T21:06:52Z",
            "ended": "2008-10-25T19:06:52Z",
            "start_waiting": null,
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 121238,
            "name": "Kranj 91",
            "director": {
                "id": 134125,
                "username": "mitava",
                "country": "at",
                "icon": "https://user-uploads.online-go.com/dd82ab9bd8acf39be51899ddbe1804ee-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 788.4782417507043,
                        "deviation": 64.76496024965462,
                        "volatility": 0.0599203180748189
                    }
                },
                "ranking": 9.415256608156199,
                "professional": false,
                "ui_class": ""
            },
            "description": "19x19",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 38051,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 36000,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 374,
                "name": "Slovenija",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 55,
                "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2024-10-24T15:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 12,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-10-24T15:01:00.192408Z",
            "ended": "2025-03-14T10:31:30.567390Z",
            "start_waiting": "2024-10-24T15:00:59.419938Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4ed128f6478ae7603dbe02435c4af5de-15.png",
            "player_count": 15,
            "ranked": true
        },
        {
            "id": 84816,
            "name": "PG DDK 9x9 25k-18k February 2022 Correspondence",
            "director": {
                "id": 335825,
                "username": "Petrich0r",
                "country": "_Pirate",
                "icon": "https://user-uploads.online-go.com/5646a0982ac7b74262b8838271d83830-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 926.8084325955595,
                        "deviation": 64.20317662774292,
                        "volatility": 0.060036609847286614
                    }
                },
                "ranking": 13.157270750685203,
                "professional": false,
                "ui_class": ""
            },
            "description": "If your rank changes to be outside the tournament Rank Restriction, please move yourself to the appropriate tournament. Enjoy your games.",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 17280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 14400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 7228,
                "name": "DDK Proving Grounds (Double Digit Kyu)",
                "summary": "A place for DDK's to play against other DDK's without fear of SDK's trying to hop in. We do B League (25k-18k) & A League (17k-10k) tournaments monthly.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 645,
                "icon": "https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-02-01T09:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 12,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2022-02-01T09:00:04.562580Z",
            "ended": "2022-03-02T18:55:47.639685Z",
            "start_waiting": "2022-02-01T09:00:04.306763Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/9725fa29200a4cb43a21b6a895183ad3-15.png",
            "player_count": 13,
            "ranked": true
        }
    ]
}