Phil Mickelson had earnings of $171,714 in 1991-92.

phil mickelson earnings in 1992
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NAMESEASONEVENTSMONEYTOP 10WINSSCORING AVGROUNDSGIR%FWY%DRIVING DISTANCE AVGPUTTING AVGSAND SAVE%SCRAMBLING %FEDEXCUP POINTS
Phil MickelsonPhil Mickelson1991-920$171,714246
StatMuse has season-level data for dollars in earnings going back to the 1979-80 season.