List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=max_ranking&page=572
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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    "previous": "https://online-go.com/api/v1/tournaments/?format=api&ordering=max_ranking&page=571",
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                "username": "Babbo Bruno",
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            "description": "Please note the very aggressive time requirement. You must average 6 moves per day. Use conditional moves to help speed it up.\nThis is a handicap tournament. So get ready to fight.",
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        {
            "id": 30513,
            "name": "tournament 13x13.",
            "director": {
                "id": 471211,
                "username": "Matheus Franca",
                "country": "br",
                "icon": "https://user-uploads.online-go.com/acc6b1ed5d4aa2078ee26c25fb67b8d2-64.png",
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            "description": "tournament 13x13.",
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                "id": 161,
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                "summary": "Like to play on a 13 x 13 board?",
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        },
        {
            "id": 129035,
            "name": "telmich's experimental tournament - random round 3",
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                "username": "telmich",
                "country": "ch",
                "icon": "https://secure.gravatar.com/avatar/ebdfc657470c327d3dbda9a2e3de7522?s=64&d=retro",
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                },
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            },
            "description": "Still experimenting with the tournament settings to make the tournament most fun.\n\nThis is a simultaneous McMahon, meaning games start in parallel. It also uses random pairing in all steps so that you get to play not in slaughter mode (against the strongest/weakest), but someone you would not normally play with.\n\nThe previous tournament (https://online-go.com/tournament/128245) uses double elimination, which seems to be waiting for everyone to finish - not in this one!\n\nMore to read for those who are interested:\n\nhttps://en.wikipedia.org/wiki/McMahon_system_tournament\n\nhttps://senseis.xmp.net/?McMahonPairing",
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            "title": null,
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        {
            "id": 121435,
            "name": "9x9 Mini League 1k-9k #129",
            "director": {
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                "username": "wiadp1",
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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",
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                "summary": "A group for Go players who love the 9x9 board.",
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            "auto_start_on_max": true,
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        },
        {
            "id": 106252,
            "name": "go championship 1",
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                "id": 1393499,
                "username": "Imtiyaz",
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                },
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                "professional": false,
                "ui_class": ""
            },
            "description": "be a go champion join the tournament",
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            },
            "is_open": true,
            "exclude_provisional": false,
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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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            "director": {
                "id": 1303195,
                "username": "eaglejoy",
                "country": "001",
                "icon": "https://user-uploads.online-go.com/d4b7c1948ffe6ed5f80f075d40a13547-64.png",
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                },
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            },
            "description": "<h2>Rules</h2>\n\n<ul>\n\n\n<li>Time-out twice in a tournament, Pausing or Vacation setting is looked on as resigning all the rest games, resulting in \"Lost by Disqualified\".</li>\n\n</ul>\n<h2>Attention</h2>\n<ul>\n\n<li>Please don't let the <strong>apologyless</strong> time-out happen; if no time, resign.</li>\n\n</ul>",
            "schedule": null,
            "title": null,
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            "handicap": 0,
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                "time_control": "canadian",
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                "period_time": 86400,
                "stones_per_period": 3
            },
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            "exclude_provisional": true,
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                "summary": "Middle speed matches, not so hurry, not so slow.",
                "require_invitation": false,
                "is_public": true,
                "admin_only_tournaments": true,
                "hide_details": false,
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            },
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            "subsequent_pairing_method": "random",
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            "ended": "2023-07-28T11:37:19.517938Z",
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            "ranked": true
        },
        {
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            "name": "Mid-Speed Open (13, L3) #4",
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                "username": "eaglejoy",
                "country": "001",
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                },
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                "professional": false,
                "ui_class": ""
            },
            "description": "<h2>Rules</h2>\n\n<ul>\n\n\n<li>Pausing or Vacation setting is looked on as resigning all the rest games, resulting in \"Lost by Disqualified\".</li>\n\n</ul>\n\n<h3>Attention</h3>\n\n<ul>\n\n<li>Please don't let the <strong>apologyless</strong> time-out happen; if no time, resign.</li>\n\n</ul>",
            "schedule": null,
            "title": null,
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            "handicap": 0,
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            },
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            "subsequent_pairing_method": "random",
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        {
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            "group": {
                "id": 3524,
                "name": "9x9 Lovers",
                "summary": "A group for Go players who love the 9x9 board.",
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        {
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            "name": "Mid-Speed Open (19, L3) #3",
            "director": {
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            "description": "<h2>Rules</h2>\n\n<ul>\n\n<li>Please don't let the <strong>apologyless</strong> time-out happen; if no time, resign.</li>\n<li>Pausing or Vacation setting is absolutely forbidden</li>\n\n</ul>\n\n<details>\n\n<summary style=\"font-size: 24px;\"><strong>Info for New Guests</strong> <span style=\"font-size:16px;\">(click to see or hide)</span></summary>\n\n<h3>Attention</h3>\n\n\nI know that if I have no time to complete a game for some reasons, or if I feel frustrated by losing, the proper way is to resign and say sorry to my opponent, rather than letting time-out happen.\n\n</details>",
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                "hide_details": false,
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