Kyle Busch Xfinity Series records remain unrivaled in 2025, even as emerging NASCAR talents set remarkable milestones in the sport. Despite fresh faces pushing the limits, Busch’s extraordinary achievements still tower over the competition and shape the future of Xfinity racing history.
New Generation Shines, But Busch’s Numbers Stand Tall
The 2025 NASCAR Xfinity Series season showcased the sheer skill of Connor Zilisch, who claimed an impressive ten race victories. This young driver, viewed by many as the future of the sport, participated in 32 races and managed to cross the finish line first almost a third of the time, earning him a win percentage of 31.25%. This performance decisively marked him as a rising star, but even his noteworthy year fell short of historic records set by Kyle Busch.
Examining the All-Time Top Win Rates
Zilisch’s season placed him fourth on the list of best win percentages in Xfinity Series history. Ahead of him is none other than Busch, who posted outstanding win rates during his most dominant years. In 2008, Busch started 30 races and won 10 of them, giving him a third-place finish with a win rate of 33.33%. The following peak came in 2010, when he improved on this by starting 29 races and notching 13 wins—an impressive 44.83% win rate, making it the second highest ever recorded in the series.
Busch reached the absolute pinnacle in 2013, where he entered just 26 races but claimed victory in 12, registering a 46.15% win rate—still the best in Xfinity Series history. This remarkable dominance throughout different seasons reshaped the perception of what is possible in the sport and prompted official changes to the race participation rules.
Rule Changes Triggered by Busch’s Commanding Record
Kyle Busch’s sustained excellence led NASCAR’s officials to put in place firm limitations designed to balance competition. The new policy, introduced in 2020, caps participation in Xfinity Series races to five per season for drivers with at least three full-time Cup Series years. This measure provided more opportunities for newer drivers to shine and alter the competitive landscape, yet none could surpass Busch’s season win records even under the new regime.
Busch Continues Winning Even Under Restrictions
Although NASCAR sought to promote up-and-coming talent, Busch continued to impress. After the participation limit, he refocused on high performance in limited Xfinity outings and prioritized his Cup Series career. Notably, in 2021, Busch entered five Xfinity races and triumphed in all five, maintaining his legendary status within the ranks of the series.
Legacy Cemented as the Ultimate Xfinity Series Winner
Kyle Busch’s career total now boasts a staggering 102 Xfinity Series victories, a milestone no other driver has reached. As he approaches forty and contemplates retirement, his chances for accumulating even more wins remain strong. Younger competitors are striving to leave their mark, but his influence continues to define excellence in the series.
The continuous spotlight on new talents like Connor Zilisch highlights the growing depth of skill in NASCAR, yet Busch’s unmatched achievements continue to inspire awe and set the benchmark for racing greatness.
Best win percentage in an Xfinity Series season all time (minimum 75% of the races started) pic.twitter.com/0SlRitqkeR
— NASCAR Insights (@NASCARInsights) December 31, 2025
