Over the last couple of years, more than 40 T-Rex costume races have been hosted around Japan, making it one of the fastest-growing racing events in the Asian country.
T-rex costume racing is believed to have originated in 2019, when dozens of people donning inflatable Tyrannosaurus Rex costumes gathered on the Emerald Downs racetrack in Auburn, Washington for a hilarious race that has been doing the rounds on social media ever since. However, T-Rex costume racing never really took off in the West, not like it did in Japan, anyway. The inaugural Tyrannosaurus Race Daisen was held in the city of Daisen, Tottori Prefecture, in April 2022 and proved so successful that it inspired a national trend, with over 40 similar events taking place all over the country ever since.
