Complex sentence: His 1-on-1 training sessions are not limited to professional riders, Pridmore trains trackday enthusiasts as well as competitive club racers out of Chuckwalla Valley Raceway and also travels to racetracks nationally and internationally to work with riders.
Split into simpler sentences: His 1-on-1 training sessions are not limited to professional riders. Pridmore does 1-on-1 training out of Chuckwalla Valley Raceway but frequently travels to other racetracks nationally and internationally to work with riders.