Since 2017-18, Brian Stuard has the most events, with 143 events.

who has the highest percent of top five finishes per twenty five event since 2018
Interpreted as:
Who has the highest percent of top five finishes per twenty five or more event since 2018?
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StuardHogeSchenkDuncanKimKangGarnettReavieRodgersMalnatiRyderWerenskiStreelmanStallingsKnoxGayTaylorStrebDahmenListHadleyConners143141136134131130127126126125125124123122122122122122122121121121
NAMEEVENTSTOP 10WINSROUNDSMONEY
Brian StuardBrian Stuard143130446$5,413,015
Tom HogeTom Hoge141121424$8,960,503
Adam SchenkAdam Schenk13680421$4,236,553
Tyler DuncanTyler Duncan13441403$4,372,241
Si Woo KimSi Woo Kim131171419$10,328,339
Sung KangSung Kang13081391$6,349,186
Brice GarnettBrice Garnett12781388$4,355,870
Chez ReavieChez Reavie126131400$9,303,557
Patrick RodgersPatrick Rodgers12690403$5,232,325
Peter MalnatiPeter Malnati12550376$4,011,322
Sam RyderSam Ryder125140373$4,955,219
Richy WerenskiRichy Werenski12481377$4,998,652
Kevin StreelmanKevin Streelman123180402$8,591,510
Scott StallingsScott Stallings122100376$4,925,397
Russell KnoxRussell Knox12290386$5,562,200
Brian GayBrian Gay122111367$5,004,024
Nick TaylorNick Taylor12261398$5,126,916
Robert StrebRobert Streb12281341$4,264,186
Joel DahmenJoel Dahmen122151403$8,166,695
Luke ListLuke List121181366$8,485,255
Chesson HadleyChesson Hadley121110360$5,759,290
Corey ConnersCorey Conners121161406$11,556,128
Denny McCarthyDenny McCarthy121120391$5,107,078
J.T. PostonJ.T. Poston121101375$6,899,773
Beau HosslerBeau Hossler12090390$5,729,899
StatMuse has season-level data for events played going back to the 1979-80 season.