Between the 1979-80 and 1998-99 seasons, Tom Watson had the most tournament wins, with 21 tournament wins.

most pga tour wins 1979-80 to 1998-99
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WatsonNormanPriceKiteO'MearaStrangeWoodsPavinCouplesWadkinsMickelsonLove IIIStadlerCrenshawDuvalAzingerSuttonStewartFloydPeeteFrostElkington21201717161615141414131312121111111111111010
NAMEEVENTSWINSTOP 10ROUNDSMONEY
Tom WatsonTom Watson1082211271,266$7,759,060
Greg NormanGreg Norman835201241,040$12,503,670
Nick PriceNick Price1258171071,305$11,386,237
Tom KiteTom Kite1698171551,788$9,743,942
Mark O'MearaMark O'Meara1682161131,758$11,162,271
Curtis StrangeCurtis Strange1608161141,734$7,145,707
Tiger WoodsTiger Woods2411543279$11,315,129
Corey PavinCorey Pavin140314951,456$8,867,886
Fred CouplesFred Couples1508141331,620$11,305,067
Lanny WadkinsLanny Wadkins151914891,607$5,422,820
Phil MickelsonPhil Mickelson5411349604$8,687,658
Davis Love IIIDavis Love III1251131001,347$12,487,463
Craig StadlerCraig Stadler1546121151,641$7,492,530
Ben CrenshawBen Crenshaw134112931,534$6,142,594
David DuvalDavid Duval4291146478$10,047,947
Paul AzingerPaul Azinger125311951,383$8,581,696
Hal SuttonHal Sutton1713111061,745$9,100,557
Payne StewartPayne Stewart1600111301,725$11,737,005
Raymond FloydRaymond Floyd97011791,125$4,083,501
Calvin PeeteCalvin Peete8791160960$2,115,932
David FrostDavid Frost122210771,272$6,835,891
Steve ElkingtonSteve Elkington98610571,112$8,110,287
Mark CalcavecchiaMark Calcavecchia1452101001,642$9,715,457
John CookJohn Cook176610831,889$7,821,796
Wayne LeviWayne Levi149310771,625$4,494,457
StatMuse has season-level data for tournament wins going back to the 1979-80 season.