Complex sentence: Pierce currently races a Jimco Trophy Truck in the SCORE International desert racing series and a Pro2 Unlimited truck in the Lucas Oil Off Road Racing Series (LOORRS) and is scheduled to make his Stadium Super Trucks Seris debut at Indianapolis Motor Speedway on May 23.
Split into simpler sentences: Pierce currently races a Jimco Trophy Truck in the SCORE International desert racing series and a Pro2 Unlimited truck in the Lucas Oil Off Road Racing Series (LOORRS). Pierce is also scheduled to make his Stadium Super Trucks Seris debut at Indianapolis Motor Speedway on May 23.