In 1999, Leighton made four more starts, all for BACE Motorsports. In his season debut, he finished 34th at Nazareth Speedway despite fatigue. He was last at Watkins Glen due to transmission failure, 37th at Milwaukee and 36th at IRP. Not only was Milwaukee the only race he finished in 1999, it was the site of his best career start, at 23rd.