Table:
text: Laura Davies
LPGA Tour (20)
LPGA Tour (20)
Date_ Tournament Winning_score Margin_of_victory Runners_up
26 Jul 1987 U.S. Women`s Open –3 (72-70-72-71=285) Playoff JoAnne Carner , Ayako Okamoto
20 Mar 1988 Circle K LPGA Tucson Open –10 (64-74-69-72=278) 1 stroke Robin Walton
5 Jun 1988 Jamie Farr Toledo Classic –11 (69-70-69-69=277) 3 strokes Nancy Lopez
18 Jun 1989 Lady Keystone Open –9 (67-73-67=207) 1 stroke Pat Bradley
10 Mar 1991 Inamori Classic –11 (70-68-72-67=277) 4 strokes Lynn Connelly , Judy Dickinson
16 May 1993 McDonald`s Championship –7 (66-69-73-69=277) 1 stroke Sherri Steinhauer
20 Mar 1994 Standard Register PING –15 (69-72-66-70=277) 4 strokes Elaine Crosby , Beth Daniel

Question: What is the LPGA Tour 20 tournament winning result for Laura Davies on May 16, 1993?

Question: What is the victory margin of Laura Davies in the LPGA Tour (20) tournament on June 5, 1988?

Question: Under LPGA Tour (20) Laura Davies, what is the winning result of the tournament with Robin Walton in runner-up?