ST. LOUIS, JUNE 22 -- Swimming events highlighted the day's activities today at the first U.S. National Senior Olympics at Washington University.

Elsa Matila, 76, of Edgewater, Md., proved to be one of the most successful of the Washington, D.C.-area competitors, capturing the gold medal in the women's 100-meter backstroke in the 75-79 age group.

Baltimore's William Melville Jr. won that event in the men's 65-69 age group.

June Gillispie of Rustburg, Va., was runner-up in the women's 100-meter backstroke in the 80-plus division.

Patrick Frank of Charlottesville took the gold medal in the men's 200-meter freestyle in the 75-79 group.

Beach Schultz of Baltimore won the bronze medal in the men's 60-64 100-meter breaststroke.

Over the weekend, Bill Osbourn, 63, of Bethesda placed third in the 10-kilometer run in the men's 60-64 group. Eleanor Pritchett of Fort Howard, Md., won the horseshoe competition among the 55-59 women.

Cokey Daman of Virginia Beach placed second in the men's 10-kilometer race in the 65-69 group.

The competition will continue Tuesday with track and field events.

All of the athletes in the competition are 55 or over. Maryland, Virginia and the District of Columbia are represented by a total of more than 160 entries. In all, more than 2,500 athletes are representing 40 states and 11 sports.