List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-players_start&page=478
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=-players_start&page=479",
    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=-players_start&page=477",
    "results": [
        {
            "id": 69233,
            "name": "9x9 round robin for improving life & dead",
            "director": {
                "id": 854600,
                "username": "Dennis H",
                "country": "nl",
                "icon": "https://secure.gravatar.com/avatar/8831ff54444dab48d7b94ba5565a396d?s=64&d=retro",
                "ratings": {
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                        "volatility": 0.05992617775704167
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                },
                "ranking": 22.688866523237937,
                "professional": false,
                "ui_class": ""
            },
            "description": "Games on 9x9 board without analysis is a good way for improving our life & dead reading, and this tournament is easy way to quickly play some games!",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 172800,
            "time_control_parameters": {
                "system": "simple",
                "time_control": "simple",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "per_move": 172800
            },
            "is_open": true,
            "exclude_provisional": true,
            "group": {
                "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"
            },
            "auto_start_on_max": true,
            "time_start": "2020-12-22T11:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 10,
            "max_ranking": 20,
            "analysis_enabled": false,
            "exclusivity": "open",
            "started": "2020-12-22T12:45:21.268339Z",
            "ended": "2021-01-15T13:02:38.315055Z",
            "start_waiting": "2020-12-22T12:45:20.448937Z",
            "board_size": 9,
            "active_round": null,
            "icon": "https://user-uploads.online-go.com/536d82e031c1cb97554650c536b40310-15.png",
            "player_count": 9,
            "ranked": true
        },
        {
            "id": 113047,
            "name": "19x19 New Zealand Open League #2",
            "director": {
                "id": 178104,
                "username": "dexonsmith",
                "country": "ca",
                "icon": "https://user-uploads.online-go.com/448e520df4ffd817b1802a450a4c9058-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
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                        "volatility": 0.06064009346038413
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                },
                "ranking": 22.55312076827671,
                "professional": false,
                "ui_class": "supporter"
            },
            "description": "All players welcome. Starts when full.\n\nNew Zealand rules. 19x19 even. Round robin.\n\nFor more tournaments with New Zealand rules: https://online-go.com/group/14024",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "nz",
            "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": 14024,
                "name": "New Zealand Ladders",
                "summary": "Group for ladders and tournaments that use New Zealand rules.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
                "member_count": 79,
                "icon": "https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2024-03-21T01:00:00Z",
            "players_start": 10,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "random",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2024-03-17T07:03:25.960902Z",
            "ended": "2024-07-04T06:09:11.765941Z",
            "start_waiting": "2024-03-17T07:03:25.339546Z",
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            "active_round": null,
            "icon": "https://user-uploads.online-go.com/6d3f1240da125f52148d02ea549146da-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 60182,
            "name": "Very fast tournament - France en mai 2020",
            "director": {
                "id": 654832,
                "username": "OldLion",
                "country": "fr",
                "icon": "https://user-uploads.online-go.com/7f118eec4759ec068a8d5c652d31e2e7-64.png",
                "ratings": {
                    "version": 5,
                    "overall": {
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                        "deviation": 68.13655871152699,
                        "volatility": 0.059696922467670215
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                },
                "ranking": 24.111534807190118,
                "professional": false,
                "ui_class": ""
            },
            "description": "Attention Ce tournoi a plusieurs paramètres particuliers. Soyez attentif !\n\nLe but est d'avoir un tournoi rapide qui ne puisse pas s'éterniser en attendant un ou deux joueurs plus lents. Une horloge canadienne est utilisée, qui ne se comporte pas comme l'horloge Fischer le plus couramment utilisée. Pas de pause le week-end.\n\nLe handicap est activé pour augmenter l'intérêt des parties.\n\nSi les outils me le permettent (c'est le premier tournoi que j'organise), la nouvelle ronde sera démarré dès que tous les joueurs n'ayant ni abandonné ni été disqualifiés auront terminés tous leurs matchs.\n\nBon jeu !\n\nWarning ! This tournament has several specific settings. Read carefully !\n\nThe idea is to have a truly fast tournament that is not dragged down by one or two slower players. A canadian clock is being used, that behaves differently from the usual Fischer clock. The clock keeps ticking on week-ends.\n\nHandicap is on in order to make all games challenging.\n\nIf the site tools allow it (It is the first tournament I manage), new rounds will be started as soon as all games by players that did not abandon nor were disqualifid are over.\n\nEnjoy !",
            "schedule": null,
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": -1,
            "rules": "japanese",
            "time_per_move": 24480,
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                "time_control": "canadian",
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                "pause_on_weekends": false,
                "main_time": 259200,
                "period_time": 259200,
                "stones_per_period": 12
            },
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            "exclude_provisional": true,
            "group": {
                "id": 95,
                "name": "France Go Players",
                "summary": "Le groupe pour les joueurs français!",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": false,
                "hide_details": false,
                "member_count": 1313,
                "icon": "https://user-uploads.online-go.com/f860ac26e7c271a3637835570b1fc13f-64.png"
            },
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            "time_start": "2020-05-13T09:00:00Z",
            "players_start": 10,
            "first_pairing_method": "strength",
            "subsequent_pairing_method": "strength",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": false,
            "exclusivity": "open",
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            "ended": "2020-07-01T13:45:11.293562Z",
            "start_waiting": "2020-05-13T09:00:17.369085Z",
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            "active_round": null,
            "icon": "https://user-uploads.online-go.com/f860ac26e7c271a3637835570b1fc13f-15.png",
            "player_count": 11,
            "ranked": true
        },
        {
            "id": 130428,
            "name": "9x9 Open League #122",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
                "ratings": {
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                },
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                "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/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 95543,
            "time_control_parameters": {
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                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "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,
                "member_count": 713,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2025-07-20T19:00:00Z",
            "players_start": 10,
            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2025-07-20T20:47:41.358237Z",
            "ended": "2025-08-29T22:48:26.904233Z",
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            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 92516,
            "name": "9x9 Open League #39",
            "director": {
                "id": 1015644,
                "username": "wiadp1",
                "country": "pl",
                "icon": "https://user-uploads.online-go.com/253ed3da1cc83d36ac1e5313f959f54d-64.png",
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                "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/10842",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 89280,
            "time_control_parameters": {
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                "time_control": "fischer",
                "speed": "correspondence",
                "pause_on_weekends": false,
                "time_increment": 86400,
                "initial_time": 259200,
                "max_time": 604800
            },
            "is_open": true,
            "exclude_provisional": false,
            "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,
                "member_count": 713,
                "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-64.png"
            },
            "auto_start_on_max": true,
            "time_start": "2022-07-24T20:00:00Z",
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            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
            "min_ranking": 5,
            "max_ranking": 38,
            "analysis_enabled": true,
            "exclusivity": "open",
            "started": "2022-07-23T23:31:03.943365Z",
            "ended": "2022-08-22T14:42:20.645048Z",
            "start_waiting": "2022-07-23T23:31:03.264662Z",
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            "active_round": null,
            "icon": "https://user-uploads.online-go.com/524010f9e013f409bdc23336febde936-15.png",
            "player_count": 10,
            "ranked": true
        },
        {
            "id": 104018,
            "name": "Correspondence Weekly McMahon 19x19 2023-06-10 17:01",
            "director": {
                "id": 4,
                "username": "matburt",
                "country": "us",
                "icon": "https://secure.gravatar.com/avatar/a87ff679a2f3e71d9181a67b7542122c?s=64&d=retro",
                "ratings": {
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                "professional": false,
                "ui_class": "supporter moderator admin"
            },
            "description": "Automatic Sitewide Tournament",
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                "active": true,
                "created": "2015-12-16T02:22:56.480465Z",
                "last_run": "2026-07-13T17:00:19.529306Z",
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                "analysis_enabled": true,
                "exclude_provisional": true,
                "players_start": 10,
                "first_pairing_method": "random",
                "subsequent_pairing_method": "strength",
                "settings": {
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                    "upper_bar": "25",
                    "lower_bar": "15",
                    "group_size": 4,
                    "maximum_players": 1000
                },
                "next_run": "2026-07-20T17:00:00Z",
                "base_points": "30.0"
            },
            "title": null,
            "tournament_type": "s_mcmahon",
            "handicap": 0,
            "rules": "japanese",
            "time_per_move": 88451,
            "time_control_parameters": {
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            },
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            "exclude_provisional": true,
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            "auto_start_on_max": false,
            "time_start": "2023-06-10T17:01:00.049978Z",
            "players_start": 10,
            "first_pairing_method": "random",
            "subsequent_pairing_method": "strength",
            "min_ranking": 0,
            "max_ranking": 36,
            "analysis_enabled": true,
            "exclusivity": "open",
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            "ended": "2025-01-07T16:16:13.433906Z",
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            "active_round": null,
            "icon": "https://cdn.online-go.com/5.1/img/trophies/gold_title_19.png",
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            "ranked": true
        },
        {
            "id": 12667,
            "name": "Kuksu Main Title Tournament 9th Cycle - Group D8",
            "director": {
                "id": 199065,
                "username": "Kuksu League",
                "country": "_United_Federation_of_Planets",
                "icon": "https://secure.gravatar.com/avatar/068ce77b41c5451811b692b8280d0f68?s=64&d=retro",
                "ratings": {
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                    "overall": {
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                        "deviation": 350.0,
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                "ranking": 24.303382182144386,
                "professional": false,
                "ui_class": "provisional"
            },
            "description": "Kuksu Main Title Tournament 9th Cycle Group D8\n\nTitle Holder: <a href='https://online-go.com/user/view/35184/vitality'>vitality (5d)</a>\n\nPrevious cycles:\n<table style=\"text-align:center;\" border='2'>\n<tr><th rowspan=2>Cycle</th><td colspan=3><b>Title Match</b></td><td colspan=3><b>Title Tournament</b></td></tr>\n<tr>\n    <th>Winner</th><th>Score</th><th>Runner-up</th>\n    <th>Winner<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/gold_title_19.png' alt='Gold'></img></th>\n    <th>Runner-up<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/silver_title_19.png' alt='Silver'></img></th>\n    <th>3rd Place<img src='https://a00ce0086bda2213e89f-570db0116da8eb5fdc3ce95006e46d28.ssl.cf1.rackcdn.com/4.2/img/trophies/bronze_title_19.png' alt='Bronze'></img></th>\n</tr>\n<tr>\n    <td><a href='https://online-go.com/tournament/2375'>1</a></td>\n    <td><b>luke</b></td><td></td><td></td>\n    <td><b>luke (2d)</b></td><td>davos</td><td>gomad361</td>\n</tr>\n<tr>\n    <td><a href='https://online-go.com/tournament/2384'>2</a></td>\n    <td><b>gomad361</b></td><td>3-2</td><td>luke</td>\n    <td><b>luke (2d)</b></td><td>gomad361</td><td>hotspur</td>\n</tr>\n<tr>\n    <td><a href='https://online-go.com/tournament/2391'>3</a></td>\n    <td><b>Uberdude</b></td><td>&lowast;</td><td>gomad361</td>\n    <td><b>Uberdude (6d)</b></td><td>KyuT</td><td>marigo</td>\n</tr>\n<tr>\n    <td><a href='https://online-go.com/tournament/2406'>4</a></td>\n    <td><b>Uberdude</b></td><td>5-0</td><td>KyuT</td>\n    <td><b>KyuT (4d)</b></td><td>quiller</td><td>morituri</td>\n</tr>\n<tr>\n    <td><a href='https://online-go.com/tournament/2424'>5</a></td>\n    <td><b>Uberdude</b></td><td>5-0</td><td>gomad361</td>\n    <td><b>gomad361 (2d)</b></td><td>morituri</td><td>betterlife</td>\n</tr>\n<tr>\n    <td><a href='https://online-go.com/tournament/2439'>6</a></td>\n    <td><b>Uberdude</b></td><td>5-0</td><td>Elin</td>\n    <td><b>Elin (3d)</b></td><td>gomad361</td><td>morituri</td>\n</tr>\n<tr>\n    <td><a href='https://online-go.com/tournament/2460'>7</a></td>\n    <td><b>Uberdude</b></td><td>3-2</td><td>vitality</td>\n    <td><b>vitality (5d)</b></td><td>Elin</td><td>gomad361</td>\n</tr>\n<tr>\n    <td><a href='https://online-go.com/tournament/2475'>8</a></td>\n    <td><b>vitality</b></td><td>&lowast;</td><td>Uberdude</td>\n    <td><b>vitality (5d)</b></td><td>nrx</td><td>gojohn</td>\n</tr>    \n<tr>\n    <td rowspan=5><a href='#'>9</a></td>\n    <td rowspan=5 colspan=3></td>\n    <td colspan=3>\n        <a href='https://online-go.com/tournament/12653'>[A]</a>\n    </td>\n</tr>\n<tr>\n    <td colspan=3>\n        <a href='https://online-go.com/tournament/12654'>[B1]</a>\n        <a href='https://online-go.com/tournament/12655'>[B2]</a>\n    </td>\n</tr>\n<tr>\n    <td colspan=3>\n        <a href='https://online-go.com/tournament/12656'>[C1]</a>\n        <a href='https://online-go.com/tournament/12657'>[C2]</a>\n        <a href='https://online-go.com/tournament/12658'>[C3]</a>\n        <a href='https://online-go.com/tournament/12659'>[C4]</a>\n    </td>\n</tr>\n<tr>\n    <td colspan=3>\n        <a href='https://online-go.com/tournament/12660'>[D1]</a>\n        <a href='https://online-go.com/tournament/12661'>[D2]</a>\n        <a href='https://online-go.com/tournament/12662'>[D3]</a>\n        <a href='https://online-go.com/tournament/12663'>[D4]</a>\n        <a href='https://online-go.com/tournament/12664'>[D5]</a>\n        <a href='https://online-go.com/tournament/12665'>[D6]</a>\n        <a href='https://online-go.com/tournament/12666'>[D7]</a>\n        <a href='https://online-go.com/tournament/12667'>[D8]</a>\n    </td>\n</tr>\n<tr>\n    <td colspan=3>\n        <a href='https://online-go.com/tournament/12668'>[E1]</a>\n        <a href='https://online-go.com/tournament/12669'>[E2]</a>\n        <a href='https://online-go.com/tournament/12670'>[E3]</a>\n        <a href='https://online-go.com/tournament/12671'>[E4]</a>\n        <a href='https://online-go.com/tournament/12672'>[E5]</a>\n        <a href='https://online-go.com/tournament/12673'>[E6]</a>\n    </td>\n</tr>\n</table>\n\n&lowast; means the games were finished by timeout or retiring.\n\nRules could be found <a href='https://forums.online-go.com/t/league-format-kuksu-title-tournament-rules-and-discussion/5191'>here</a>.",
            "schedule": null,
            "title": null,
            "tournament_type": "roundrobin",
            "handicap": 0,
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