Table:
text: David Duval
PGA Tour wins (13)
PGA Tour wins (13)
Date_ Tournament Winning_score Margin_of_victory Runners_up
Oct 12, 1997 Michelob Championship at Kingsmill –13 (67-66-71-67=271) Playoff Grant Waite , Duffy Waldorf
Oct 19, 1997 Walt Disney World/Oldsmobile Classic –18 (65-70-65-70=270) Playoff Dan Forsman
Nov 2, 1997 The Tour Championship –11 (66-69-70-68=273) 1 stroke Jim Furyk
Feb 22, 1998 Tucson Chrysler Classic –19 (66-62-68-73=269) 4 strokes Justin Leonard , David Toms
May 3, 1998 Shell Houston Open –12 (69-70-73-64=276) 1 stroke Jeff Maggert
Aug 30, 1998 NEC World Series of Golf –11 (69-66-66-68=269) 2 strokes Phil Mickelson
Oct 11, 1998 Michelob Championship at Kingsmill –16 (65-67-68-68=268) 3 strokes Phil Tataurangi

Question: What was the winning result in David Duval's PGA Tour wins (13) on May 3, 1998?