OAKLAND — How do you calculate the speed of a flying baseball? How are batting averages determined and what is an earned run average? More than 100 students from Richmond took a dive into the math behind baseball Thursday at the A’s On-Field Clinic, an annual event meant to draw more students into science, technology and engineering, held at the Oakland Coliseum.

The event featured celebrity coaches, including A’s coach Ron Washington, former A’s players Shooty Babitt, John “Blue Moon” Odom and Bip Roberts, and former major leaguer Mike Felder.

Volunteers from San Jose State University and Chevron taught children about the mechanics of muscle reaction, biofeedback, reaction time and the impact of speed on a ball.

The program is sponsored by Chevron, which operates a refinery in Richmond, and involved the Richmond Little League and Richmond Police Activities League, where police officers volunteer with local youth.

Contact Karina Ioffee at 510-262-2726 or kioffee@bayareanewsgroup.com. Follow her @Twitter.com/kioffee.