This was the third year for the Running of the Rexes, and it has become so popular that non-employees have called the company asking to enter, USA Today reported.
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But the race itself evolved into the Dino Run. One year, it was themed to Hawaiian clothing, then togas. But the Rex Run stuck after the first dinosaur dash in 2017, according to NPR.
Whichever rex does survive to cross the finish line first, doesn't actually win a prize other than bragging rights for the year, NPR reported.