List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=max_ranking&page=5294
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59257,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=5295",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=max_ranking&page=5293",
    "results": [
        {
            "id": 131968,
            "name": "19x19 Open League #99",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1354.7118139948188,
                        "deviation": 69.37399710693171,
                        "volatility": 0.060207963604883834
                    }
                },
                "ranking": 21.944944452879042,
                "professional": false,
                "ui_class": ""
            },
            "description": "Open league for everyone. Tournament will be started as soon as 10 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "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": false,
            "group": {
                "id": 12599,
                "name": "GO Special Tournaments",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 70,
                "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-09-07T21:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-09-07T07:31:03.218042Z",
            "ended": "2025-10-21T23:47:02.310014Z",
            "start_waiting": "2025-09-07T07:31:02.670092Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/02eb72b0992a3db1053a7c08c080d81b-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 84489,
            "name": "Bad tournament",
            "director": {
                "id": 916344,
                "username": "YimengLiu",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/04841ec7f1cb68d8942b716d11d694da?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1464.4317756757137,
                        "deviation": 83.76503321183883,
                        "volatility": 0.060029376253586675
                    }
                },
                "ranking": 23.747832942877736,
                "professional": false,
                "ui_class": ""
            },
            "description": "this is weird",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 28,
            "time_control_parameters": {
                "system": "canadian",
                "time_control": "canadian",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 900,
                "period_time": 180,
                "stones_per_period": 10
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 9959,
                "name": "Battlefield",
                "summary": "Lots of tournaments.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 11,
                "icon": "https://user-uploads.online-go.com/35a32113b107d2c20dd88098e310591c-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-01-05T03:35:00Z",
            "players_start": 0,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2022-01-05T03:35:25.196066Z",
            "ended": "2022-01-05T03:35:25.174547Z",
            "start_waiting": "2022-01-05T03:35:25.126587Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/35a32113b107d2c20dd88098e310591c-15.png",
            "player_count": 0,
            "ranked": true
        },
        {
            "id": 133843,
            "name": "The Aji Tournament II",
            "director": {
                "id": 1864696,
                "username": "The Atari Union",
                "country": "in",
                "icon": "https://user-uploads.online-go.com/97a3545e27ab6dc2768c65861fc96dd0-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 275.4271587796327,
                        "deviation": 83.19570494461763,
                        "volatility": 0.059985568052562735
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "All are open for more tournaments. For a beginner friendly group join the Aji Union Group (+25k Beginner)",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 777600
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 15743,
                "name": "The Aji Union (+25k Beginners)",
                "summary": "This group is open for all and beginner friendly. If you do not wish to join this group try the The Opening Tournament on Oct 7th, it is called The Aji Tournament!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 19,
                "icon": "https://user-uploads.online-go.com/4a4eaae21c0ccdddb0b5e26d211af026-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-11-03T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2025-11-03T23:00:22.745244Z",
            "ended": "2026-02-03T20:42:59.228928Z",
            "start_waiting": "2025-11-03T23:00:22.643989Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/4a4eaae21c0ccdddb0b5e26d211af026-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 84492,
            "name": "play whit me",
            "director": {
                "id": 1041773,
                "username": "deleted-676e5bcb-8aba-4c07-b4db-79a152518265",
                "country": "th",
                "icon": "https://user-uploads.online-go.com/d600074ff538de929122aadaf76dd14b-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 687.7674598225775,
                        "deviation": 62.79622213694344,
                        "volatility": 0.05985580166850275
                    }
                },
                "ranking": 6.25171592515502,
                "professional": false,
                "ui_class": ""
            },
            "description": "play it",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 1843,
                "name": "Open Study Room",
                "summary": "Community of go players who play long serious games in leagues, study together, set up lectures.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1804,
                "icon": "https://user-uploads.online-go.com/8f94a8b09b47255de25f6e050f8928b4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-01-05T05:00:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-01-05T05:00:28.511627Z",
            "ended": "2022-01-05T05:14:09.233012Z",
            "start_waiting": "2022-01-05T05:00:28.292922Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/8f94a8b09b47255de25f6e050f8928b4-15.png",
            "player_count": 2,
            "ranked": true
        },
        {
            "id": 54001,
            "name": "Tournoi de novembre",
            "director": {
                "id": 623375,
                "username": "tienslebien",
                "country": "_LGBT",
                "icon": "https://secure.gravatar.com/avatar/e03e23a96344bfaf199e12c5f09e2ed3?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1508.8460594988971,
                        "deviation": 65.76922194370482,
                        "volatility": 0.06048449933488328
                    }
                },
                "ranking": 24.439505375814058,
                "professional": false,
                "ui_class": ""
            },
            "description": "Un petit tournoi à la bonne franquette.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "chinese",
            "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": 73,
                "name": "France",
                "summary": "Groupe pour les joueurs de go francophones.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 74,
                "icon": "https://user-uploads.online-go.com/2c13d548c665fa9677cbece4c018f7b6-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2019-11-25T11:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2019-11-23T09:52:20.956872Z",
            "ended": "2019-12-31T08:50:55.310326Z",
            "start_waiting": "2019-11-23T09:52:15.691531Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/2c13d548c665fa9677cbece4c018f7b6-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 129223,
            "name": "MtG25z6",
            "director": {
                "id": 1765191,
                "username": "ĶÏŁŁĚŔ502",
                "country": "gt",
                "icon": "https://user-uploads.online-go.com/716e59a6af555d7ef264a42bfbe58964-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 605.6101069533506,
                        "deviation": 73.95303050499774,
                        "volatility": 0.06075792790714387
                    }
                },
                "ranking": 5,
                "professional": false,
                "ui_class": ""
            },
            "description": "100%VILANO",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 9,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "rapid",
                "pause_on_weekends": false,
                "time_increment": 7,
                "initial_time": 300,
                "max_time": 3600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 15283,
                "name": "Tournaments and games",
                "summary": "Please feel free to create your own tournament or game, and to have fun. The purpose of this group is for you guys to have fun, to learn and to gain experience. If you wish you can create reviews, you can share a game, or a impressive move you made.😁\n\nI am",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 21,
                "icon": "https://user-uploads.online-go.com/d468da67c2a39fd37f4de966ee5820ea-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-06-07T16:00:00Z",
            "players_start": 3,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "invite",
            "started": "2025-06-07T16:00:42.050682Z",
            "ended": "2025-06-07T16:09:48.934466Z",
            "start_waiting": "2025-06-07T16:00:41.958409Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/d468da67c2a39fd37f4de966ee5820ea-15.png",
            "player_count": 3,
            "ranked": true
        },
        {
            "id": 83751,
            "name": "KIDO TRAINING",
            "director": {
                "id": 88120,
                "username": "satoshi84",
                "country": "mx",
                "icon": "https://user-uploads.online-go.com/6a6404f3dd53bce3fc1e4a88fb357e2e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1136.7959829193692,
                        "deviation": 78.40429708623937,
                        "volatility": 0.06016044531576248
                    }
                },
                "ranking": 17.885013568829635,
                "professional": false,
                "ui_class": ""
            },
            "description": "KIDO TRAINING",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 40,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 900,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4841,
                "name": "PIPIOLO GO 2022🏆",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 215,
                "icon": "https://user-uploads.online-go.com/53d0a90037da78f2a39241da6e40dc96-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-12-15T23:33:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2021-12-15T23:33:11.243603Z",
            "ended": "2022-03-09T12:16:50.837955Z",
            "start_waiting": "2021-12-15T23:33:11.109784Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/53d0a90037da78f2a39241da6e40dc96-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 120766,
            "name": "2025 Spring Cup (13x13)",
            "director": {
                "id": 1381238,
                "username": "BuzzerBeater",
                "country": "030",
                "icon": "https://user-uploads.online-go.com/d34952ca0e76fd14a163c154f3b31475-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1729.6712256705969,
                        "deviation": 79.80229216955863,
                        "volatility": 0.06095734525100417
                    }
                },
                "ranking": 27.60147562370105,
                "professional": false,
                "ui_class": ""
            },
            "description": "Good luck and have fun!\nJust give you a heads up, and suspicious activities might get you kicked out of this tournament (such as AI use).",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 86400,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 86400
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 14385,
                "name": "The Ranked Group",
                "summary": "Join this group and compete for the best ^^",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 190,
                "icon": "https://user-uploads.online-go.com/afe0747efdb912a764d15d5340a4b85f-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2025-03-01T12:00:00Z",
            "players_start": 16,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2025-02-22T01:12:09.754081Z",
            "ended": "2025-04-24T07:43:06.795903Z",
            "start_waiting": "2025-02-22T01:12:09.529231Z",
            "board_size": 13,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/afe0747efdb912a764d15d5340a4b85f-15.png",
            "player_count": 16,
            "ranked": true
        },
        {
            "id": 85069,
            "name": "KIDO 19X19",
            "director": {
                "id": 607938,
                "username": "kido.go.baduk",
                "country": "mx",
                "icon": "https://user-uploads.online-go.com/83ceb7eea12991c2d610032107296fa7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 752.4459521746994,
                        "deviation": 67.76829760245717,
                        "volatility": 0.060586791591643506
                    }
                },
                "ranking": 8.332400499350085,
                "professional": false,
                "ui_class": ""
            },
            "description": "19X19 PARTIDAS DE GO",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 36,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 600,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4841,
                "name": "PIPIOLO GO 2022🏆",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 215,
                "icon": "https://user-uploads.online-go.com/53d0a90037da78f2a39241da6e40dc96-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2022-01-19T23:32:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2022-01-19T23:32:31.390121Z",
            "ended": "2022-01-20T00:20:51.860615Z",
            "start_waiting": "2022-01-19T23:32:31.241548Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/53d0a90037da78f2a39241da6e40dc96-15.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 88759,
            "name": "test 4",
            "director": {
                "id": 1139949,
                "username": "wanyaow",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/44e7f34ab943dc2a5e086dd325ecd2f3?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1448.6486735485482,
                        "deviation": 170.6867337928089,
                        "volatility": 0.06000448988621987
                    }
                },
                "ranking": 23.496976575614106,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "test4",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 3,
            "time_control_parameters": {
                "system": "absolute",
                "time_control": "absolute",
                "speed": "blitz",
                "pause_on_weekends": false,
                "total_time": 300
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 11514,
                "name": "USMKKJ Chess",
                "summary": "",
                "require_invitation": false,
                "is_public": false,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 9,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2022-04-16T08:44:00Z",
            "players_start": 2,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "group",
            "started": "2022-04-16T08:44:09.268924Z",
            "ended": "2022-04-16T08:47:06.082869Z",
            "start_waiting": "2022-04-16T08:44:09.185473Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 2,
            "ranked": true
        }
    ]
}