List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-min_ranking&page=50
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "next": "https://online-go.com/api/v1/tournaments?format=api&ordering=-min_ranking&page=51",
    "previous": "https://online-go.com/api/v1/tournaments?format=api&ordering=-min_ranking&page=49",
    "results": [
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            "name": "Simple Correspondence 13x13 SDK 2020 November",
            "director": {
                "id": 302584,
                "username": "koast",
                "country": "us",
                "icon": "https://user-uploads.online-go.com/e5b52e887c6f66d70b3f2c72a0d4eb19-64.png",
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                },
                "ranking": 24.58242625475131,
                "professional": false,
                "ui_class": ""
            },
            "description": "NOVEMBER!!!!\n\nNo conditional moves",
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            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
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            "time_per_move": 172800,
            "time_control_parameters": {
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                "time_control": "simple",
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            "exclude_provisional": true,
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                "id": 5017,
                "name": "Simple Correspondence",
                "summary": "2 days per move. No Analysis.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 66,
                "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-64.png"
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            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
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            "exclusivity": "open",
            "started": "2020-11-02T15:35:04.500900Z",
            "ended": "2020-11-17T16:35:23.287496Z",
            "start_waiting": "2020-11-02T15:35:04.025133Z",
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            "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-15.png",
            "player_count": 4,
            "ranked": true
        },
        {
            "id": 133625,
            "name": "Double Elimination for 6k-9k # II",
            "director": {
                "id": 1872546,
                "username": "Sch-Mentor",
                "country": "001",
                "icon": "https://user-uploads.online-go.com/41804ae38abc71e0bea5040b313b01ec-64.png",
                "ratings": {
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                        "rating": 1500,
                        "deviation": 250,
                        "volatility": 0.06
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                },
                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Things to keep in mind:\n* Use the conditional move feature to speed up the game.\n* No pauses and no vacations are allowed; if any player switch it on, then they will be disqualified without further notice or reminder (unless they have an urgent matter to attend to and give notice to TD).\n* Disqualification will occur automatically by the site if a player loses by timeout.\n* If you find that a player pauses the game, enters vacation mode or has bad behavior, please send a message to the TD.\n* And last but not least: no weekends; just make your move, it’s a tournament, my friend!",
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            "title": null,
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            "handicap": 0,
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                "time_control": "fischer",
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                "pause_on_weekends": false,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 259200
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 15509,
                "name": "Fast and narrow rank range tournaments",
                "summary": "Tournaments for people who like to play within narrow rank ranges and fast correspondence games.",
                "require_invitation": true,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
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                "icon": "https://user-uploads.online-go.com/fb0e7d5660cf5ea61609ed14abdc9bfa-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-11-03T23:33:00Z",
            "players_start": 8,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "random",
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            "max_ranking": 24,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-11-03T23:33:23.448884Z",
            "ended": null,
            "start_waiting": "2025-11-03T23:33:23.276529Z",
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            "active_round": 3,
            "icon": "https://user-uploads.online-go.com/fb0e7d5660cf5ea61609ed14abdc9bfa-15.png",
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            "ranked": true
        },
        {
            "id": 111130,
            "name": "Here we Go! Epic 12 rounds 5kyu-9kyu tournament.",
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                "id": 699769,
                "username": "jeroentjeb",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/bd4d71e7ea87028b6cc6540f291f4873-64.png",
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                "ui_class": "supporter"
            },
            "description": "Here we Go! Epic 12 rounds 5 kyu - 9 kyu battle! \n12 hours per move.",
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            "title": null,
            "tournament_type": "mcmahon",
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            "is_open": true,
            "exclude_provisional": true,
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                "id": 25,
                "name": "Go Basics",
                "summary": "A learning and teaching environment for players of all strengths with emphasis on tournaments and game reviews. Come teach, learn, and have fun!",
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                "hide_details": false,
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            },
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            "subsequent_pairing_method": "random",
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            "analysis_enabled": true,
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            "ended": null,
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            "ranked": true
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        {
            "id": 110792,
            "name": "9x9 Mini League 1k-9k #101",
            "director": {
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                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
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                "professional": false,
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            },
            "description": "Special league for players between 9kyu and 1kyu. Tournament will be started as soon as 5 players will join it.\n\nPrevious winners: https://online-go.com/group/10842",
            "schedule": null,
            "title": null,
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            "handicap": 0,
            "rules": "japanese",
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                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
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                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
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            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
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            "max_ranking": 29,
            "analysis_enabled": true,
            "exclusivity": "open",
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            "ended": "2024-01-14T22:36:51.603364Z",
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            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 75421,
            "name": "9k-5k Battle 5",
            "director": {
                "id": 213337,
                "username": "funloop",
                "country": "au",
                "icon": "https://user-uploads.online-go.com/74d957756ad9275c9acef2241173bef8-64.png",
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                },
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                "professional": false,
                "ui_class": ""
            },
            "description": "Let’s play some games, make some mistakes, and learn from them.\n\nDoes NOT pause on weekends.\n\n“Conditional Moves & Analysis” disabled to help improve reading skills.\n\nIf your rank improves or degrades outside of the 9k-5k rank restriction range after you join this tournament (but before the tournament starts), you will be removed (because OGS does not automatically do this).",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 37440,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
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                "pause_on_weekends": false,
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                "initial_time": 129600,
                "max_time": 129600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 20,
                "name": "Single Digit Kyu Room",
                "summary": "A room for SDK's \r\n",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 760,
                "icon": "https://user-uploads.online-go.com/86d86effdffc2d0bbcd98e0f3b379249-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-06-25T22:00:00Z",
            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 25,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2021-06-25T22:00:50.875304Z",
            "ended": "2022-05-09T16:10:27.994793Z",
            "start_waiting": "2021-06-25T22:00:50.441972Z",
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            "active_round": null,
            "icon": "https://user-uploads.online-go.com/86d86effdffc2d0bbcd98e0f3b379249-15.png",
            "player_count": 23,
            "ranked": true
        },
        {
            "id": 135287,
            "name": "13x13 Mini League 2d-9k #10",
            "director": {
                "id": 1688153,
                "username": "Mittelmark",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/f86d53e1b08ba490783eac759518a835-64.png",
                "ratings": {
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                    "overall": {
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                        "deviation": 67.82243088341788,
                        "volatility": 0.060027120992573436
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                },
                "ranking": 17.1899627681176,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "A little round robin with 4 games for everyone on a 13x13 board with (not too) relaxed time settings.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 93703,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 432000,
                "max_time": 1209600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 161,
                "name": "13x13",
                "summary": "Like to play on a 13 x 13 board?",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 55,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2026-01-23T19:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 31,
            "analysis_enabled": false,
            "exclusivity": "open",
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            "ended": null,
            "start_waiting": "2026-01-23T16:07:53.272054Z",
            "board_size": 13,
            "active_round": 1,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 54522,
            "name": "Fast Correspondence – 2019/2020 SDK (B)",
            "director": {
                "id": 784,
                "username": "mlopezviedma",
                "country": "ar",
                "icon": "https://user-uploads.online-go.com/3e911828e4e25e61f8faede9d9277323-64.png",
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                },
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                "professional": false,
                "ui_class": "supporter moderator"
            },
            "description": "Please, avoid delaying your games using the vacation feature. If that’s the case, the tournament director may call the game for your opponent (always with previous notice).",
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            "title": null,
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            "handicap": 0,
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            "time_per_move": 30720,
            "time_control_parameters": {
                "system": "fischer",
                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 28800,
                "initial_time": 172800,
                "max_time": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 508,
                "name": "Fast Correspondence",
                "summary": "Tournaments for people who like to play quick correspondence games.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 811,
                "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-64.png"
            },
            "auto_start_on_max": false,
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            "players_start": 4,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 29,
            "analysis_enabled": false,
            "exclusivity": "group",
            "started": "2019-12-19T00:01:22.196847Z",
            "ended": "2020-02-02T22:13:53.735310Z",
            "start_waiting": "2019-12-19T00:01:21.041475Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/7cba93c8731bbe4ad1ff73b5abd71818-15.png",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 129598,
            "name": "13x13 Mini League 2d-9k #4",
            "director": {
                "id": 1688153,
                "username": "Mittelmark",
                "country": "de",
                "icon": "https://user-uploads.online-go.com/f86d53e1b08ba490783eac759518a835-64.png",
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                "professional": false,
                "ui_class": "supporter"
            },
            "description": "A little round robin with 4 games for everyone on a 13x13 board with (not too) relaxed time settings.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 93703,
            "time_control_parameters": {
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                "time_control": "fischer",
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                "pause_on_weekends": true,
                "time_increment": 86400,
                "initial_time": 432000,
                "max_time": 1209600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 161,
                "name": "13x13",
                "summary": "Like to play on a 13 x 13 board?",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 55,
                "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg"
            },
            "auto_start_on_max": true,
            "time_start": "2025-07-18T18:00:00Z",
            "players_start": 5,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 31,
            "analysis_enabled": false,
            "exclusivity": "open",
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            "ended": "2025-08-14T22:27:32.771566Z",
            "start_waiting": "2025-07-13T23:01:28.589972Z",
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            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/default-group-v5.svg",
            "player_count": 5,
            "ranked": true
        },
        {
            "id": 74093,
            "name": "9k-5k Battle 4",
            "director": {
                "id": 213337,
                "username": "funloop",
                "country": "au",
                "icon": "https://user-uploads.online-go.com/74d957756ad9275c9acef2241173bef8-64.png",
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                },
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                "professional": false,
                "ui_class": ""
            },
            "description": "Let’s play some games, make some mistakes, and learn from them.\n\nDoes NOT pause on weekends.\n\n“Conditional Moves & Analysis” disabled to help improve reading skills.\n\nIf your rank improves (or degrades) outside of the 9k-5k band after you join this tournament, you will be removed.",
            "schedule": null,
            "title": null,
            "tournament_type": "swiss",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 37440,
            "time_control_parameters": {
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                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 36000,
                "initial_time": 129600,
                "max_time": 129600
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "id": 20,
                "name": "Single Digit Kyu Room",
                "summary": "A room for SDK's \r\n",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 760,
                "icon": "https://user-uploads.online-go.com/86d86effdffc2d0bbcd98e0f3b379249-64.png"
            },
            "auto_start_on_max": false,
            "time_start": "2021-05-21T22:00:00Z",
            "players_start": 64,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 21,
            "max_ranking": 25,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2021-05-21T22:08:48.823052Z",
            "ended": "2022-05-23T21:00:25.831595Z",
            "start_waiting": "2021-05-21T22:08:47.398703Z",
            "board_size": 19,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/86d86effdffc2d0bbcd98e0f3b379249-15.png",
            "player_count": 35,
            "ranked": true
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        {
            "id": 129660,
            "name": "9x9 Mini League 1k-9k #147",
            "director": {
                "id": 1015644,
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