Let’s look at which of this season’s Diamondback pitchers had specific pitch types/categories that were either great or below average. That will be determined by whether that pitch type’s wOBA is either 10% better or 10% worse than the league average wOBA. Pitch types with less than 25 pitches in their latest season were excluded.
“Unlike on-base percentage and OPS (OBP + SLG), wOBA assigns value to each method of reaching base, in terms of its impact on scoring runs.” — excerpt from MLB.com glossary