Leitzinger shared the 1999 United States Road Racing Championship (USRRC) championship with teammate Elliott Forbes-Robinson and won the famed Rolex 24 at Daytona: twice with Dyson Racing (1997 & 1999), and once in a Nissan 300ZX (1994) co-driven with Scott Pruett, Steve Millen and Paul Gentilozzi.
Butch Morris | Butch Cassidy and the Sundance Kid | Butch Cassidy | Butch Vig | Butch Harmon | Butch Davis | Butch | Butch White | Butch (Tom and Jerry) | Butch Reed | Butch Otter | The Butch Factor | Mr. Butch | Gordon "Butch" Stewart | Butch Walker | Butch Hobson | The Rise and Fall of Butch Walker and the Let's-Go-Out-Tonites | Butch van Breda Kolff | Butch Jones | Squadron Leader McNamara (left) as Executive Officer of No. 77 Squadron, talking with Flight Lieutenant John "Butch" Hannan following the latter's release from a North Korean Prisoner of war | Roy "Butch" Voris | Lawrence "Butch" Morris | Emile "Butch" Bouchard | Craig "Butch" Atkinson | Butch Van Artsdalen | Butch Stearns | Butch O'Hare | Butch McCain | Butch Lewis | Butch Leitzinger |
Butch Leitzinger, Chad Little, Robert Pressley, and Jeff Green shared the driving duties in turns for the rest of the year.