. . . . . . . . . "U.S. Masters Swimming" . . . . . . . "USMS" . . . . . . . . . . . . . . . "60,000+" . . . . . . . . . . . . "U.S. Masters Swimming" . . "Organized adult swimming in the U.S." . . "18" . . "masters swimming" . . . "USMS" . . .