List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-ended&page=3361
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 59734,
    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-ended&page=3362",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-ended&page=3360",
    "results": [
        {
            "id": 65590,
            "name": "Live 9x9 Double Elimination Tournament 2020-09-18 06:30",
            "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": 2,
                "name": "Live 9x9 Double Elimination Tournament",
                "rrule": "DTSTART:20260523T180000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:22:51.496184Z",
                "last_run": "2026-05-23T18:00:16.303968Z",
                "lead_time_seconds": 1800,
                "tournament_type": "double_elimination",
                "handicap": 0,
                "rules": "japanese",
                "size": 9,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 30,
                    "main_time": 300,
                    "periods": 3
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slide",
                "subsequent_pairing_method": "slide",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 100
                },
                "next_run": "2026-05-23T22:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 33,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 300,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-09-18T06:30:37.438638Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-09-18T06:30:39.197178Z",
            "ended": "2020-09-18T07:06:42.365898Z",
            "start_waiting": "2020-09-18T06:30:38.669256Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 65219,
            "name": "9x9 prácticas",
            "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": "para aprender",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "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": 86400
            },
            "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": true,
            "time_start": "2020-09-09T23:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 19,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-09-09T23:00:03.119639Z",
            "ended": "2020-09-18T03:20:46.984353Z",
            "start_waiting": "2020-09-09T23:00:01.759808Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 63508,
            "name": "principiantes",
            "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": "torneo de clasificación\n\nal menos tres jugadas por día",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "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": "2020-08-15T23:00:00Z",
            "players_start": 8,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 13,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-08-15T23:00:13.687730Z",
            "ended": "2020-09-18T01:09:14.839381Z",
            "start_waiting": "2020-08-15T23:00:12.890413Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 65578,
            "name": "Live 9x9 Double Elimination Tournament 2020-09-17 22:30",
            "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": 2,
                "name": "Live 9x9 Double Elimination Tournament",
                "rrule": "DTSTART:20260523T180000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:22:51.496184Z",
                "last_run": "2026-05-23T18:00:16.303968Z",
                "lead_time_seconds": 1800,
                "tournament_type": "double_elimination",
                "handicap": 0,
                "rules": "japanese",
                "size": 9,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 30,
                    "main_time": 300,
                    "periods": 3
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slide",
                "subsequent_pairing_method": "slide",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 100
                },
                "next_run": "2026-05-23T22:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 33,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 300,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-09-17T22:30:18.266378Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-09-17T22:30:19.844585Z",
            "ended": "2020-09-17T23:05:22.415909Z",
            "start_waiting": "2020-09-17T22:30:19.434499Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 55394,
            "name": "19x19 Double Elimination (New Zealand Rules)",
            "director": {
                "id": 637869,
                "username": "Robert.Jasiek.Rules.Master",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/404bee731ca9a372d41def91e449b98e-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1500,
                        "deviation": 350,
                        "volatility": 0.06
                    }
                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "☆ The default tournament pairing method is Strength, to ensure matches remain competitive the entire contest.\n \n☆ This is a ‘Fast Correspondence Tournament’. Please, avoid delaying your games using the vacation feature or pause. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).\n \n☆ Does NOT pause on the weekend.\n \n☆ If this sounds like a good time to you, please join us!\n\n<HR><BR>\nTournaments are a great way to find people who are more competitive than your average opponent. A big part of improving your own skills is by having them tested by capable adversaries. If you would like to be apart of more Chinese ruleset tournaments, check out our group for weekly opportunities.<BR><BR>",
            "schedule": null,
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "nz",
            "time_per_move": 45120,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 43200,
                "initial_time": 172800,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3207,
                "name": "New Zealand Tournaments",
                "summary": "This group exists as a place to enjoy weekly tournaments with competitively minded players using the lesser known but arguably strategically superior New Zealand rule set. All are welcome here ヽ(≧◡≦)ノ",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 593,
                "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-02-01T02:00:00Z",
            "players_start": 8,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-02-01T02:00:12.481901Z",
            "ended": "2020-09-17T21:20:35.769018Z",
            "start_waiting": "2020-02-01T02:00:10.761534Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6eb69fa03f2ad6946a5ae7783753aaa4-15.png",
            "player_count": 18,
            "ranked": true
        },
        {
            "id": 57532,
            "name": "Beginners Round Robin",
            "director": {
                "id": 724227,
                "username": "randyb",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/5c7bd8c317adf27c4b5bcfe448ffc722?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 852.1768177262771,
                        "deviation": 72.92354099369301,
                        "volatility": 0.05997794083457074
                    }
                },
                "ranking": 11.213762196999804,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "Beginners Round Robin",
            "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",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "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": 3663,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2020-03-20T02:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 12,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-03-20T02:00:25.088128Z",
            "ended": "2020-09-17T20:42:58.968066Z",
            "start_waiting": "2020-03-20T02:00:23.128369Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 64850,
            "name": "Steal omecoin",
            "director": {
                "id": 649651,
                "username": "omelette",
                "country": "jp",
                "icon": "https://user-uploads.online-go.com/50c8c6904e0c2101ae4f5250759b4bb9-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 2271.5425229802713,
                        "deviation": 73.37441733174731,
                        "volatility": 0.059994527032710306
                    }
                },
                "ranking": 33.91049370241351,
                "professional": false,
                "ui_class": ""
            },
            "description": "entry qualifications follow my twitch stream(omelette1515)\n\nfirst prize 100k omecoin\nomecoin is my stuff for fun on my stream\nIf you have the omecoin. you can redeem many sound effect\nI won't join this tournament.anyway take is easy\nI don't get it exactly about OGS tournament.  If I understand that, I might hold bunch of tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 4197,
                "name": "Fun Study Room",
                "summary": "A room for players who emphasis on all Go things",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 37,
                "icon": "https://user-uploads.online-go.com/1053c4e34d608183d8f3743027006432-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2020-09-02T00:00:00Z",
            "players_start": 4,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 31,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-09-02T00:22:48.381837Z",
            "ended": "2020-09-17T19:48:11.535016Z",
            "start_waiting": "2020-09-02T00:22:47.570252Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/1053c4e34d608183d8f3743027006432-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 65572,
            "name": "Live 9x9 Double Elimination Tournament 2020-09-17 18:30",
            "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": 2,
                "name": "Live 9x9 Double Elimination Tournament",
                "rrule": "DTSTART:20260523T180000Z\nRRULE:FREQ=HOURLY;INTERVAL=4",
                "active": true,
                "created": "2014-12-20T06:22:51.496184Z",
                "last_run": "2026-05-23T18:00:16.303968Z",
                "lead_time_seconds": 1800,
                "tournament_type": "double_elimination",
                "handicap": 0,
                "rules": "japanese",
                "size": 9,
                "time_control_parameters": {
                    "time_control": "byoyomi",
                    "period_time": 30,
                    "main_time": 300,
                    "periods": 3
                },
                "min_ranking": 0,
                "max_ranking": 36,
                "analysis_enabled": false,
                "exclude_provisional": true,
                "players_start": 4,
                "first_pairing_method": "slide",
                "subsequent_pairing_method": "slide",
                "settings": {
                    "num_rounds": "3",
                    "upper_bar": "20",
                    "lower_bar": "10",
                    "group_size": "3",
                    "maximum_players": 100
                },
                "next_run": "2026-05-23T22:00:00Z",
                "base_points": "10.0"
            },
            "title": null,
            "tournament_type": "double_elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 33,
            "time_control_parameters": {
                "time_control": "byoyomi",
                "period_time": 30,
                "main_time": 300,
                "periods": 3
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": null,
            "auto_start_on_max": false,
            "time_start": "2020-09-17T18:30:08.382362Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slide",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-09-17T18:30:10.577160Z",
            "ended": "2020-09-17T19:09:38.531110Z",
            "start_waiting": "2020-09-17T18:30:09.597960Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_9.png",
            "player_count": 8,
            "ranked": true
        },
        {
            "id": 65573,
            "name": "Test Game",
            "director": {
                "id": 846814,
                "username": "wegoedu2020",
                "country": "un",
                "icon": "https://secure.gravatar.com/avatar/2594fa9a16e652b5e3197c93f7118e89?s=64&d=retro",
                "ratings": {
                    "version": 5,
                    "overall": {
                        "rating": 1392.425726642019,
                        "deviation": 167.57581938494695,
                        "volatility": 0.0600061389823276
                    }
                },
                "ranking": 22.58061115736741,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "We-Go Test Tournament",
            "schedule": null,
            "title": null,
            "tournament_type": "mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 30,
            "time_control_parameters": {
                "system": "byoyomi",
                "time_control": "byoyomi",
                "speed": "live",
                "pause_on_weekends": false,
                "main_time": 60,
                "period_time": 30,
                "periods": 5
            },
            "is_open": true,
            "exclude_provisional": false,
            "group": {
                "id": 6866,
                "name": "We-Go Education",
                "summary": "",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 198,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": false,
            "time_start": "2020-09-17T18:30:00Z",
            "players_start": 2,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-09-17T18:29:32.632053Z",
            "ended": "2020-09-17T18:52:35.699629Z",
            "start_waiting": "2020-09-17T18:29:32.284762Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 7,
            "ranked": true
        },
        {
            "id": 65570,
            "name": "mundialito",
            "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": "mundialitoooo",
            "schedule": null,
            "title": null,
            "tournament_type": "elimination",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 12,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "live",
                "pause_on_weekends": false,
                "time_increment": 12,
                "initial_time": 60,
                "max_time": 60
            },
            "is_open": true,
            "exclude_provisional": true,
            "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": "2020-09-17T16:33:00Z",
            "players_start": 4,
            "first_pairing_method": "slaughter",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2020-09-17T16:33:04.611206Z",
            "ended": "2020-09-17T17:18:50.706094Z",
            "start_waiting": "2020-09-17T16:33:03.830127Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 15,
            "ranked": true
        }
    ]
}