List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-exclude_provisional&page=5464
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "Visita el canal de KIDO Escuela de Go https://bit.ly/3a1zeT9",
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        {
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            "name": "Tournament 9▪︎9, fisher 1d + 2d = 3d",
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                "username": "Barkodө",
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                "username": "milanm",
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                "name": "Massachusetts Go Foundation",
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