Captured during the kick-off of Everi’s 2016 TournEvent of Champions, on April 30, Muckleshoot Casino in Auburn, Washington culminated its landmark 21st-anniversary celebration with a record-breaking event, when the world’s largest slot tournament was officially certified by Guinness World Records, according to a press release by the casino.

Conrad Granito, General Manager of Muckleshoot Casino, said, “This is a thrilling honor not just for Muckleshoot Casino, but for the incredible 3,173 players who hold this record with us equally,” and, “Their spirited enthusiasm, combined with the exhilarating fun of Everi’s TournEvent of Champions, created a winning combination,” according to the report.

The accomplishment was verified by an official World Records adjudicator after a more than 13-hour period. More than $100,000 in cash and prizes was awarded to participants in the history-making event, which was free to guests 21 and older.

Benigno T. of Federal Way, Washington, the tournament’s top finisher, was awarded $21,000 in cash, as well as a four-night Las Vegas trip to compete for an opportunity to win $1 million in Everi’s TournEvent of Champions championship event that takes place this year on September 28.

Muckleshoot Casino’s humble beginnings are found 1995 in a tent, and the casino has grown to become the Pacific Northwest’s largest gaming establishment, with almost 200,000 square feet of gaming space, 3,100 games, over 70 gaming tables, live entertainment, and eight restaurants.