DUNEDIN, NEW ZEALAND - MARCH 10: A supporter wears a dinosaur costume during day three of the First Test match between New Zealand and South Africa at University Oval on March 10, 2017 in Dunedin, New Zealand. (Photo by Dianne Manson/Getty Images)
This is the third time this event has taken place at the Emerald Downs racetrack in Auburn, Washington. Around a dozen people dressed in dinosaur costumes raced down the track in front of a sold out crowd!
The crowd could place bets on the dino racers just like the horses.