Phil Mickelson won 2 tournaments in 2003-04.

phil mickelson wins in 2004
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NAMESEASONEVENTSWINSTOP 10SCORING AVGROUNDSGIR%FWY%DRIVING DISTANCE AVGPUTTING AVGSAND SAVE%SCRAMBLING %FEDEXCUP POINTSMONEY
Phil MickelsonPhil Mickelson2003-048321369.27969.662.9295.41.856.464.7$5,784,823
StatMuse has season-level data for tournament wins going back to the 1979-80 season.