List all tournaments or create a new tournament.

GET /api/v1/tournaments?format=api&ordering=-max_ranking&page=5363
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "description": "Automatic site wide tournament",
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                "summary": "Are you an OGS fan? If you are, join this group where there’s great tournaments and games to be played.\n\nPeople and bots can chat and play in this group. This is a public group so all are welcome to join.",
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            "name": "9x9 Turnier 2021",
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            "description": "Lehrling by doing schicke ich Euch meine erste Turniereinladung :-)",
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        {
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            "name": "2nd Kyu Level Nines",
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            "description": "3 more minutes!",
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        {
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        {
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            "description": "from itself...",
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                "name": "OGS",
                "summary": "An open group for folks' who like OGS!",
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            "subsequent_pairing_method": "random",
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        {
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            "name": "🔞Пℹ️Ⓜ️🅿️💹",
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