Jason Perez, on the comeback trail from an elbow injury, won a WSMC 20-lap, 50-mile Solo GTO race Saturday at Willow Springs Raceway, aboard his Rojo Racing Yamaha YZF-R1. Ryan Hoffman won in the Solo GTU class in the combined race. Riding a Yamaha TZ250, John Ulrich finished first overall and first in the Solo GT-GP class in the combined Solo GT-GP and Solo GT-Lights race, also a 20-lap, 50-mile event. Results follow: Solo GTO 1. Jason Perez, Yamaha YZF-R1 2. Troy Maturo, Yamaha YZF-R1 3. Robbie Dowie, Suzuki GSX-R1000 4. Jason Caldwell, Suzuki GSX-R1000 5. Curtis Adams, Suzuki GSX-R1000 6. Jeff Stern, Suzuki GSX-R1000 Solo GTU 1. Ryan Hoffman, Kawasaki ZX-6R 2. David Siminski, Suzuki GSX-R600 3. Blair Sullenger, Yamaha YZF-R6 4. Grant Riggs, Yamaha YZF-R6 5. Stan Bates, Yamaha YZF-R6 6. Mark Allen, Yamaha YZF-R6 Solo GT-Lights 1. Tim Martinez, Suzuki SV650 2. Kurt Whittington, Suzuki 3. Martin Hackworth, Yamaha FZR400 4. Craig Smith, Suzuki Solo GT-GP 1. John Ulrich, Yamaha TZ250 2. David Conger, Honda RS250R 3. Kris Provost, Aprilia RS250 4. Lloyd Magruder, Yamaha TZ250 5. Jamie Lenore, Aprilia RS250 6. David Steinhoff, Aprilia RS250