Maureen Mancuso: The Teen Who Shattered a Running Record (what's a "Modern Worthy"? click here to find out!) The Marathon World Record Holder the World Forgot | Outside Online Two weeks after Kathrine Switzer made headlines at Boston in 1967, 13-year-old Maureen Mancuso quietly shattered the women’s world record. Few people noticed. Next: Gertrude Jeannette Previous: Tammie Jo Shults