Both Grant and Routh took to Instagram to share some adorable video footage from the race in which Leo wins by a landslide, shouting “I won!” as he crosses the makeshift finish line.
“Epic shoot day on location. @kimiles shot what will be 2 amazing sequences. The high point for me was losing to Leo,” wrote Gustin in the caption of the video. “He did get a slight head start though. And I think my leg cramped up a little. Also I think I had the wrong boots on.”
Routh regrammed the same video from Gustin’s account and added a cute caption of his own.
“When your dad is #Superman & #TheAtom but you heart #TheFlash,” wrote Routh. “HUGE props to the crazy talented and genuinely kind @grantgustin for being such a great sport!”
This is by far the most adorable footrace we’ve ever seen— props to Grant Gustin for being such a good sport!
The Flash returns to The CW in October.