List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=-max_ranking&page=5674
HTTP 200 OK
Allow: GET, POST, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

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                "summary": "A group for Go players who love the 9x9 board.",
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                "username": "Wulfenia.",
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            "name": "13x13 Mini League 10k-25k #23",
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                "username": "Mittelmark",
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            "id": 30354,
            "name": "Corgi Go",
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            "description": "For all of the corgi lovers out there to play go",
            "schedule": null,
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                "id": 1300,
                "name": "Corgi Lovers",
                "summary": "For whoever likes Corgi's <3",
                "require_invitation": false,
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        {
            "id": 40090,
            "name": "Lions 13 - august 2018",
            "director": {
                "id": 557899,
                "username": "🦁 Lvicala 🦁",
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            },
            "description": "for everybody",
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            },
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            "group": {
                "id": 2773,
                "name": "Lions",
                "summary": "for all fighters like lion :)",
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        },
        {
            "id": 41822,
            "name": "Test tournament",
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                "id": 470374,
                "username": "Jazz_Squamosa",
                "country": "_United_Federation_of_Planets",
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                },
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            },
            "description": "Test tournament too see if the time settings good.\n\nJump in to test!",
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            },
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            "group": {
                "id": 2979,
                "name": "Internatio.NL Go Club",
                "summary": "Virtuele DDK club voor Nederlandse spelers en hun vrienden",
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        {
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            "name": "13x13 New Zealand 25k-10k League #16",
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                "username": "dexonsmith",
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            "description": "25k-10k. 5 players. Starts only when full.\n\nNew Zealand rules. 13x13 board. Even games. Round robin.\n\nFor more tournaments and ladders with New Zealand rules: <https://online-go.com/group/14024>",
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        {
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            "name": "9x9 Mini League 10k-25k #253",
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                "name": "9x9 Lovers",
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            "description": "Welcome to the 1st Begineers 9x9 Swiss Tournament! The tournament is open to every player between 10-25 Kyu. The maximum number of participants is 30 so hurry up to sign in for the tournament!",
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        {
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