In the entire history of the NASCAR, only 34 of the nearly 3,000 drivers who have started a Cup race have reached that milestone.<br>Brad Keselowski is about to become the 35th at Martinsville Speedway.<br>The 42-year-old champion and RFK Racing co-owner is nursing a leg injury early in the 2026 season, but he's still fully capable of competing at a high level, finishing fifth in the Daytona 500 ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/brad-keselowski-to-join-exclusive-club-with-600th-career-start/10809069/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=www'>Keep reading</a>