As Friday’s 150-lap race wound to a close Zilisch, a 17-year-old development driver for Trackhouse Racing, found himself trying to hold off fellow 17-year-old William Sawalich, a development driver for Toyota and Joe Gibbs Racing.Three times in the final 23 laps, Zilisch and Sawalich raced side-by-side and banged fenders on restarts with Zilisch able to stay out front each time.The final restart ...<a class='more' href='https://www.motorsport.com/arca/news/connor-zilisch-bests-william-sawalich-for-iowa-arca-win/10623582/?utm_source=RSS&utm_medium=referral&utm_campaign=R SS-NASCAR&utm_term=News&utm_content=www'>Keep reading</a>

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