Corbin Burnes has the second best ERA among qualifiers despite a .308 BABIP. You need to go down to #11 (Cole, 3.02 ERA, .302 BABIP) to find anyone close and all the way to #25 (Eovaldi, 3.88 ERA, .325 BABIP) to find anyone with a higher batting average on balls in play.
fangraphs.com/leaders.aspx?pos=all&stats=...Posted Sep 28, 2021, 1:11 PM UTC
And that's somehow despite him being in the 94th percentile or better in all of Hard hit %, avg exit velocity, barrel %, xBA %. Basically, he's giving up less hard contact than almost anyone else, yet an above average amount of balls in play go for hits.
I'd bet the outside cutter really encourages slap hits which have a deceptively high BABIP for how hard they get hit.
I haven’t seen any analysis of the data, but based on watching, this is exactly what is happening.
So many damn squibbers and infield hits for him and Woody this year