Accelerate is a retired American Thoroughbred racehorse, best known for winning the 2018 Breeders' Cup Classic. He established his reputation when defeating champion Arrogate in the 2017 GII San Diego Handicap, and prior to his Breeders' Cup success won the GI Santa Anita Handicap, GI Gold Cup at Santa Anita Stakes, GI Pacific Classic Stakes, and the GI Awesome Again Stakes. He is one of three horses from the 2013 foal crop to win the Breeders' Cup Classic, along with Arrogate in 2016, and Gun Runner in 2017.

The 2018 Breeders' Cup Classic was the 35th running of the Breeders' Cup Classic, part of the 2018 Breeders' Cup World Thoroughbred Championships program. It was run on November 3, 2018, at Churchill Downs in Louisville, Kentucky with a purse of $6,000,000. It was won by Accelerate, who earned his fifth Grade I win of the year.