Tournament List
List all tournaments or create a new tournament.
GET /api/v1/tournaments?format=api&ordering=ended&page=3138
{ "count": 58969, "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=ended&page=3139", "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=ended&page=3137", "results": [ { "id": 42934, "name": "cookies!", "director": { "id": 434287, "username": "plunco123", "country": "sg", "icon": "https://user-uploads.online-go.com/09c2e06377580c17170f0176640e628c-64.png", "ratings": { "version": 5, "overall": { "rating": 1065.148398354857, "deviation": 62.98616519671558, "volatility": 0.060034951495478994 } }, "ranking": 16.377957053584552, "professional": false, "ui_class": "" }, "description": "GO AND EAT SOME COOKIES!", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 631680, "time_control_parameters": { "system": "fischer", "pause_on_weekends": true, "time_control": "fischer", "initial_time": 2419200, "max_time": 2419200, "time_increment": 604800, "speed": "correspondence" }, "is_open": true, "exclude_provisional": false, "group": { "id": 375, "name": "Singapore Go Group", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 90, "icon": "https://user-uploads.online-go.com/529c6f8d9bf74e0c7bad9bd6a682570e-64.png" }, "auto_start_on_max": false, "time_start": "2018-11-24T16:00:00Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2018-11-24T16:01:00.926381Z", "ended": "2021-06-25T03:28:40.530636Z", "start_waiting": "2018-11-24T16:01:00.246580Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/529c6f8d9bf74e0c7bad9bd6a682570e-15.png", "player_count": 17, "ranked": true }, { "id": 76283, "name": "gogogo", "director": { "id": 838050, "username": "Noame", "country": "_Pirate", "icon": "https://secure.gravatar.com/avatar/980c0a6a206285c731bad6badb50b036?s=64&d=retro", "ratings": { "version": 5, "overall": { "rating": 1511.4616222522511, "deviation": 66.29302420588455, "volatility": 0.06003498363140431 } }, "ranking": 24.479600822541165, "professional": false, "ui_class": "" }, "description": "gogogogogogogoogogogogogogog", "schedule": null, "title": null, "tournament_type": "swiss", "handicap": 0, "rules": "japanese", "time_per_move": 60, "time_control_parameters": { "system": "simple", "time_control": "simple", "speed": "live", "pause_on_weekends": false, "per_move": 60 }, "is_open": true, "exclude_provisional": false, "group": { "id": 1144, "name": "Taiwanese", "summary": "Mostly Taiwanese!\n\nlet us know if you want to be admin. Please take great care, thank you!", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": false, "member_count": 181, "icon": "https://user-uploads.online-go.com/fe3a174d07946483a6050a9acfa63393-64.png" }, "auto_start_on_max": false, "time_start": "2021-06-14T08:02:00Z", "players_start": 4, "first_pairing_method": "strength", "subsequent_pairing_method": "strength", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "open", "started": "2021-06-25T06:05:09.449441Z", "ended": "2021-06-25T06:15:23.474441Z", "start_waiting": "2021-06-25T06:05:09.231421Z", "board_size": 19, "active_round": null, "icon": "https://user-uploads.online-go.com/fe3a174d07946483a6050a9acfa63393-15.png", "player_count": 4, "ranked": true }, { "id": 76716, "name": "Live 9x9 Double Elimination Tournament 2021-06-25 06:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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:20260315T020000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:22:51.496184Z", "last_run": "2026-03-15T02:00:11.149740Z", "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", 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"2021-06-25T07:30:13.052805Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_13.png", "player_count": 6, "ranked": true }, { "id": 76719, "name": "Blitz 19x19 Elimination Tournament 2021-06-25 09:30", "director": { "id": 4, "username": "matburt", "country": "us", "icon": "https://secure.gravatar.com/avatar/1dff84686f829e8ef90e2e123f1baddf?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": 1, "name": "Blitz 19x19 Elimination Tournament", "rrule": "DTSTART:20260315T010000Z\nRRULE:FREQ=HOURLY;INTERVAL=4", "active": true, "created": "2014-12-20T06:06:42.010011Z", "last_run": "2026-03-15T01:00:11.130952Z", "lead_time_seconds": 1800, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "size": 19, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "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": "2026-03-15T05:00:00Z", "base_points": "10.0" }, "title": null, "tournament_type": "elimination", "handicap": 0, "rules": "japanese", "time_per_move": 11, "time_control_parameters": { "time_control": "byoyomi", "period_time": 10, "main_time": 120, "periods": 5 }, "is_open": true, "exclude_provisional": true, "group": null, "auto_start_on_max": false, "time_start": "2021-06-25T09:30:16.978102Z", "players_start": 4, "first_pairing_method": "slide", "subsequent_pairing_method": "slide", "min_ranking": 0, "max_ranking": 36, "analysis_enabled": false, "exclusivity": "open", "started": "2021-06-25T09:30:18.387122Z", "ended": "2021-06-25T09:55:24.940029Z", "start_waiting": "2021-06-25T09:30:18.303144Z", "board_size": 19, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png", "player_count": 4, "ranked": true }, { "id": 74114, "name": "1-й пробный турнир УФ ПМ УК 13х13", "director": { "id": 701305, "username": "Алексей М.", "country": "ru", "icon": "https://user-uploads.online-go.com/cf58a8e91b38fd8e0a8904825ce81076-64.png", "ratings": { "version": 5, "overall": { "rating": 1129.4821922607891, "deviation": 60.960874217871, "volatility": 0.05982378928611813 } }, "ranking": 17.7355925106331, "professional": false, "ui_class": "" }, "description": "1-й пробный турнир УФ ПМ УК 13х13", "schedule": null, "title": null, "tournament_type": "mcmahon", "handicap": 0, "rules": "japanese", "time_per_move": 7680, "time_control_parameters": { "system": "absolute", "time_control": "absolute", "speed": "correspondence", "pause_on_weekends": true, "total_time": 691200 }, "is_open": true, "exclude_provisional": false, "group": { "id": 8764, "name": "УФ ПМ УК", "summary": "", "require_invitation": false, "is_public": true, "admin_only_tournaments": false, "hide_details": true, "member_count": 7, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg" }, "auto_start_on_max": true, "time_start": "2021-04-19T12:00:00Z", "players_start": 6, "first_pairing_method": "random", "subsequent_pairing_method": "slaughter", "min_ranking": 5, "max_ranking": 38, "analysis_enabled": true, "exclusivity": "group", "started": "2021-04-19T10:48:00.443170Z", "ended": "2021-06-25T10:08:34.473063Z", "start_waiting": "2021-04-19T10:48:00.336192Z", "board_size": 13, "active_round": null, "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg", "player_count": 6, "ranked": true }, { "id": 76721, "name": "Explore Blitz Go Tournament", "director": { "id": 1009728, "username": 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