William Byron is celebrating an EchoPark Automotive Grand Prix victory after holding off Christopher Bell in a close finish at the Circuit of the Americas. The rivals were neck-and-neck when the white flag came out and finished within point-six seconds of each other. Byron is the first NASCAR Cup Series driver to win two races this season after earning a Daytona 500 victory last month. Ty Gibbs, Alex Bowman and Tyler Reddick rounded out the Top-Five finishers. The field turns its attention to the Toyota Owners 400 at Richmond Raceway next Sunday.