List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=80
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=79",
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            "description": "My mini \nMy main : 李建澔2",
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                "id": 5596,
                "name": "Tempo|Vagabond YT",
                "summary": "Hello guys welcome back",
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            "name": "player Hi level 13x13 McMahon",
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                "username": "판을엎어라",
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                "name": "신중하게 두자",
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        {
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                "username": "wiadp1",
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            "name": "Tournament (cuz the group needs more tournaments)",
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            "description": "Join if you want",
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                "summary": "We like to play all go seriously. We study, play each other, and have tournaments every now and then.",
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        {
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            "description": "Since my original halloween had mysteriously deleted, I have created another halloween tournament. Enjoy",
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            "description": "Gfvhtggggf",
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