List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=exclude_provisional&page=300
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=exclude_provisional&page=299",
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                "id": 9945,
                "name": "Unusual boards",
                "summary": "Group for those who love playing on unusual boards like 10x10, 2x25, 7x14 and so on...",
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                "name": "OGS Mini Tournaments",
                "summary": "The home for all of the old OGS mini tournaments",
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            "name": "Shiyu Fan's group 1st competition",
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                "name": "Shiyu Fan",
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        {
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                "id": 1795,
                "name": "神棋之塔Tower of GO",
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        {
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            "name": "September Study Group Tournament",
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            "description": "This is the set-up for tomorrow's tournament, I hope that the time constraints work to give us some exciting games.",
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                "name": "Ten Minutes to Go",
                "summary": "A private group for teaching new Go players",
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        {
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            "description": "first tournament of the calss",
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                "name": "TAU-students",
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