August 29, 2016 02:25 PM

A version of this article originally appeared on

The Flash may be the fastest man alive, but Grant Gustin still has a ways to go. The star of The CW’s DC series adorably raced and lost to Leo, the son of The Atom actor Brandon Routh.

“Leo beat me in a race today. I wasn’t ready,” Gustin wrote next to video of the moment on social media. Routh, who also played the Man of Steel in Bryan Singer’s Superman Returns, responded, “When your dad is #Superman & #TheAtom, but you heart #TheFlash…HUGE props to the crazy talented and genuinely kind [Grant Gustin] for being such a great sport!”

Gustin, 26, previously posted photos from the Flash set of script pages for the fifth episode of season 3 and his “very busy day” wearing Ray-Bans. “This is my version of the goggled Batfleck look,” he wrote.

The Flash season 3 premieres Oct. 4 at 8 p.m. ET on The CW.

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