Table:
text: Mark Calcavecchia
PGA Tour wins (13)
PGA Tour wins (13)
Date_ Tournament Winning_score Margin_of_victory Runners_up
Sep 28, 1986 Southwest Golf Classic –13 (68-70-66-71=275) 3 strokes Tom Byrum
Mar 8, 1987 Honda Classic –9 (69-72-68-70=279) 3 strokes Bernhard Langer , Payne Stewart
Sep 18, 1988 Bank of Boston Classic –10 (71-67-70-66=274) 1 stroke Don Pooley
Jan 22, 1989 Phoenix Open –21 (66-68-65-64=263) 7 strokes Chip Beck
Feb 5, 1989 Nissan Los Angeles Open –12 (68-66-70-68=272) 1 stroke Sandy Lyle
Jul 23, 1989 The Open Championship –13 (71-68-68-68=275) Playoff Wayne Grady , Greg Norman
Jan 26, 1992 Phoenix Open –20 (69-65-67-63=264) 5 strokes Duffy Waldorf
May 7, 1995 BellSouth Classic –17 (67-69-69-66=271) 2 strokes Jim Gallagher, Jr.

Question: In which tournament did Mark Calcavecchia have a score of -9 (69-72-68-70=279) among PGA Tour wins (13)?

Question: What was the winning margin in the PGA Tour Classics Golf Tournament Wins 13 Marks Calcavecchia Southwest?

Question: If the winning score was -9 (69-72-68-70=279), what was the winning margin for Mark Calcavecchia's PGA Tour wins (13)?