List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-players_start&page=560
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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            "name": "Mad Go unfriendly tournament #2",
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            "description": "Let's play Mad Go",
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            "description": "9x9 board tournament for DDK players only.",
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                "username": "Petru Dumitriu",
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            "description": "Dear 12 k players,\n\nThis is really unique and (no longer) unprecedented. A tournament dedicated exclusively to serious and dedicated 12 k players. The new format has proved to be attractive and successful.\n\nThe previous edition of the round robin took shorter than any other tournament I participate in: from February till May. It will give you a quick but meaningful assessment of your potential\n\nThe best chance to focus and to enjoy a challenging tournament, free of frustration, pure pleasure. \n\nJoin as soon as you can to make sure that you are still 12 k.",
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                "id": 655,
                "name": "Romania",
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        {
            "id": 72565,
            "name": "Nine*Nine, NineNineNine",
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                "id": 109488,
                "username": "DVbS78rkR7NVe",
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            "description": "<h2 style=\"color:red\">999 Rounds of 9x9</h2>\n\nThis is another silly tournament, this time it's 9x9 but with lots and lots of rounds (if it even works).\n\nGames themselves are meant to be relatively quick.\n\nUsing \"pause\" may result in disqualification if it holds the tournament from advancing to the next round.\n\nIf only one active player is left, the tournament is ended prematurely, I think. In a way, this is a survival tournament.\n\nInspired by The Nonary Games.",
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                "name": "Leopard's Resting Tree",
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            "name": "SunRise from East",
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                "username": "Arrow A6 anti-",
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            "description": "🌏🌍🌎\n\n<h3><a Href=\"https://online-go.com/group/13797\"><span  style=\"color:gold;\"><u>  Go advance forward forever&#20<a Href=\"https://online-go.com/group/13797\">welcome to join</u>\n</a></h3>\n\n<p>\n<embed src=\"https://www.youtube.com/embed/2HoTK_Gqi2Q\"width=\"320\" height=\"180\">\n</p>",
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                "name": " 无间勤碁术化  Go Advance forward forever",
                "summary": "欢迎围棋爱好者来到属于您的园地\n\n\n          In Your 💖 Go to Universes everywhere",
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        {
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            "name": "(Orthodox) Easter Bunny Tournament",
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            "description": "A bag full of chocolate eggs ...",
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                "id": 78,
                "name": "OGS Mini Tournaments",
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            "description": "Three of the best of this tournament will receive the honorary titles of the Lords Of The White Stone and will take their places in the Hall of Lords. In the name of the Game of Stones, may this be done!",
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                "summary": "This group is no longer operated.",
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