Table:
text: Pat Bradley (golfer)
LPGA Tour (31)
LPGA Tour (31)
Date_ Tournament Winning_score Margin_of_victory Runners_up
Mar 29, 1981 Women`s Kemper Open E (71-75-68-70=284) 5 strokes Debbie Massey
Jul 26, 1981 U.S. Women`s Open –9 (71-74-68-66=279) 1 stroke Beth Daniel
Jan 30, 1983 Mazda Classic of Deer Creek –16 (68-69-69-66=272) 7 strokes Beth Daniel
May 22, 1983 Chrysler-Plymouth Charity Classic –7 (73-73-66=212) 1 stroke Stephanie Farwig
Aug 28, 1983 Columbia Savings Classic –11 (71-69-70-67=277) Playoff Beth Daniel
Nov 13, 1983 Mazda Japan Classic –10 (72-70-64=206) 7 strokes Laurie Rinker
Jun 16, 1985 Rochester International –8 (74-67-67-72=280) 2 strokes Nancy Lopez
Jul 28, 1985 du Maurier Classic –10 (70-73-67-68=278) 1 stroke Jane Geddes
Aug 25, 1985 LPGA National Pro-Am –4 (71-74-71-68=284) Playoff Amy Alcott

Question: What was the winning score on August 28, 1983 for Pat Bradley (golfer) under the LPGA Tour (31) in the US Open tournament?