Johan Oviedo's comeback story is a fascinating one, and it's all about his fastball. The Red Sox are betting big on Oviedo's arm, but is it too good to be true?
Oviedo's return from elbow surgery in 2025 has shown some promising signs, especially with his fastball. MLB.com's Mike Petriello reports that Oviedo's fastball has significantly improved, and the Red Sox are taking notice.
While surface-level indicators might not paint the best picture, the team has delved deeper and found reasons to be optimistic about Oviedo's right-handed fastball. Before undergoing Tommy John surgery in 2024, Oviedo had a solid 2023 campaign with the Pirates, pitching 177.2 innings. His slider was a standout, ranking 11th in MLB with a plus-11 Run Value. However, his fastball was the weak link, ranking 178th out of 179 qualified starters with a minus-10 rating. Despite respectable velocity (96 mph), his four-seamer lacked vertical movement.
But here's where it gets controversial: upon his return in 2025, Oviedo's fastball underwent a transformation. The pitch that previously allowed a .275 batting average and .465 slugging percentage in 2023 suddenly became a weapon, dropping to a minuscule .149/.383. Its Whiff rate skyrocketed from 18.5% to an impressive 31.3%, and its Stuff+ metric jumped from 82 in 2023 to a stellar 115 last year. The Red Sox believe they've found a gem, but there's a catch.
And this is the part most people miss: the 2025 sample size is small, just 40.1 innings, and Oviedo's walk rate, already a concern at 4.2 BB/9 in 2023, rose to 5.1 in 2025. So, is Oviedo's fastball a true comeback story, or is it a mirage? Only time will tell, but for now, the Red Sox are all-in.
What do you think? Is Oviedo's fastball a sign of things to come, or just a flash in the pan? Let us know in the comments!
