Largest slot machine tournament

According to Official Guinness Records,

The largest slot machine tournament involved 3,173 participants in an event organized by Muckleshoot Casino with support from Everi Games Inc. (both USA), in Auburn, Washington, USA, on 30 April 2016. The event was organized in celebration of Muckleshoot Casino's 21st Anniversary.

For a complete list of 2016 records, please visit 2016 Guinness Records in United States.

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