Sigma Derby
Sigma Derby is an electro-mechanical horse race used for gambling manufactured by Japanese manufacturer Sigma Game Inc. and introduced in 1985.[1] Up to ten players can buy in with quarters and place bets on the five horses; a quinella of two horses in any order pays out according to the odds. The house has roughly a 10-20% advantage, depending on the machine.[2]
After the closing of the New Frontier Hotel and Casino, there’s only one remaining Sigma Derby machine in Las Vegas. It is located at The D Las Vegas in Downtown Las Vegas.[3]
Atlantic City is home of one Sigma Derby type machine in the Tropicana hotel and casino, known as Royal Derby.
Two new versions of a racing game similar to Sigma Derby made their debut at the G2E Conference in Las Vegas, NV in 2015. One was a prototype game called "Classic Derby," made by manufacturing company VSR Industries.[4][5] Another was a game called Royal Derby, made by Slovenian gaming company Alfastreet.