List all tournaments or create a new tournament.

GET /api/v1/tournaments/?format=api&ordering=time_per_move&page=4597
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=time_per_move&page=4596",
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            "description": "Tired of being laid waste by SDK?",
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            "name": "19x19 Open D.E. Cup #9",
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                "username": "wiadp1",
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            "description": "Double-Elimination tournament for everyone. It will be started as soon as 8 players will join it.\n\nPrevious winners: https://online-go.com/group/12599",
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            "title": null,
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            "handicap": 0,
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                "name": "GO Special Tournaments",
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                "username": "Sch-Mentor",
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            "description": "Things to keep in mind:\n* Use the conditional move feature to speed up the game.\n* No pauses and no vacations are allowed; if any player switch it on, then they will be disqualified without further notice or reminder (unless they have an urgent matter to attend to and give notice to TD).\n* Disqualification will occur automatically by the site if a player loses by timeout (if they have more than 50 active games they will be disqualified by the TD too).\n* If disqualified by the TD, all outstanding games will be forfeited, which will affect the player’s ranking.\n* If you find that a player pauses the game, enters vacation mode or has bad behavior, please send a message to the TD.\n* And last but not least: no weekends, just make your move; it’s a tournament, my friend!",
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        {
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            "name": "19x19 Open League #31",
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                "username": "wiadp1",
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            "first_pairing_method": "slide",
            "subsequent_pairing_method": "slaughter",
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            "name": "Kranj 36",
            "director": {
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                "username": "mitava",
                "country": "at",
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