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Connor Zilisch Falls Short of Kyle Busch’s Xfinity Dominance

Despite a breakout season in 2025 with ten wins, Zilisch could not topple one of Xfinity's older statesmen, Kyle Busch. The RCR driver's 2013 season remains undefeated with the highest win percentage of 46.15%. Zilisch came close with 31.25% races won, only to fall behind Busch's 2008 and 2010 seasons with 44.83% and 33.33% wins, respectively.