 After the season, he was flagged as the winner of the 2005 Toyota All-Star Showdown over David Gilliland, but in post-race inspection it was discovered that illegal right-side wheels were installed on his car.Olsen was disqualified as a result, with Gilliland being declared the winner.Olsen has competed in eleven NASCAR Busch Series events, between 1996 and 2000, with the majority being combination races between the Busch and Busch North series; his best finish in Busch Series competition was 18th, at Watkins Glen International in 1997.