Phil Mickelson won 2 tournaments in 2012-13.

phil mickelson wins in 2013
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NAMESEASONEVENTSWINSTOP 10SCORING AVGROUNDSGIR%FWY%DRIVING DISTANCE AVGPUTTING AVGSAND SAVE%SCRAMBLING %FEDEXCUP POINTSMONEY
Phil MickelsonPhil Mickelson2012-13212769.77866.757.3287.91.755.758.62,939$5,495,793
StatMuse has season-level data for tournament wins going back to the 1979-80 season.