U.S. Army Reserve Officer Training Corps Cadet Marie A. St. Clair of Chippenham, Va., took first place in the women’s 200-­meter swim with a halftime of one hour, 55 minutes, and an overall 4:23. St. Clair is a senior at University of Texas, El Paso and is sponsored by her unit, 356th Transportation Company, 383rd Quartermaster Battalion, 647th Regional Support Group of Las Cruces, N.M.