List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=time_per_move&page=5465
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
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            "name": "Spring Peace T. 2022",
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            "description": "Tournament for people from Bremen and all over the world",
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        {
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            "name": "Friendly tournaments",
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            "description": "Pairing method is slide subsequent pairing method is set for random rules: Japanese  size 13x13\nAll ranks accepted maun time 4 days time per period 1 day hope to play everyone hf and gl.",
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                "username": "Cham3leoNinja",
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            "description": "The last one was kinda set up in minutes on accident. I'm kinda new to the whole thing here so...yeah, basically same idea as before. You get to play everyone in the group. It's not about ranking or anything more than good fun and learning so chat with your opponent, most of us in here are talkers anyway and the better ones have no problem giving tips and pointers (that's why I picked them for this group). Sorry about the first one!",
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                "summary": "HOW DO YOU DELETE A GROUP YOU STARTED?",
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                "username": "Peter ;)",
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            "description": "Non-Reading-suji club members only tournament. \n\nCause it'll be fun! Please join.\n\nPosted for a few weeks for sign-up time, and then we can start, even with only four people. Swiss type so only one game at a time.",
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                "summary": "Players who believe in the art of making moves without reading",
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