U.S. track and field coach Andrew Valmon, a two-time gold medalist in the 400-meter relay, keeps a watchful eye on hopefuls as they train in College Park. (Barbara L. Salisbury/The Washington Times)

U.S. track and field coach Andrew Valmon, a two-time gold medalist in the 400-meter relay, keeps a watchful eye on hopefuls as they train in College Park. (Barbara L. Salisbury/The Washington Times)