In 1971, for one year, Schul served as the national coach for Malaysia and then moved back to the U.S., re-settling in Ohio. In his spare time he continued to train club athletes. In 1978, the Air Force sent all their top distance runners to Wright Patterson Air Force Base to train under Schul. After a year of training, many of the athletes reduced their times enough to compete in National events. Schul himself participated in road races along with his club athletes until the age of sixty, when his right leg and back problems prevented further racing. Along the way, Schul became a top masters runner (33.55 for 10,000 m and 76:00 for half marathon at age fifty; 17:56 for 5,000 m at age 60). In October 2007, Schul had his right hip replaced.