Today in sports history: Aug. 20 
1921 — Molla Bjurstedt Mallory beats Mary Browne, 4-6, 6-4, 6-2, to win the U.S. women’s national tennis title at the Germantown Cricket Club in Philadelphia. 1931 — Helen Wills Moody beats Eileen Bennett Whitingstall, 6-4, 6-1 ,to capture the women’s title in the U.S. Lawn Tennis Association championship. 1944...