In a captivating turn of events, Johan Oviedo seems to be making a remarkable comeback with his fastball showing promising improvements after his elbow surgery in 2025, according to Mike Petriello from MLB.com.
While initial statistics might not paint the most favorable picture for Oviedo, the Boston Red Sox took a closer look and felt optimistic about the trajectory of the right-hander's fastball. Prior to his Tommy John surgery in 2024, Oviedo had a solid season, pitching 177.2 innings for the Pittsburgh Pirates in 2023, which included a notable ranking of 11th in Major League Baseball with a +11 Run Value on his slider. However, his fastball performance was concerning, ranking a lowly 178th out of 179 qualified starters with a -10 Run Value. Although his four-seam fastball showcased commendable velocity at 96 mph, it struggled with vertical movement.
Upon his return in 2025, significant improvements in both key metrics were evident. The pitch that previously allowed batters to hit .275 with a slugging percentage of .465 in 2023 saw those numbers drop dramatically to an impressive .149 and .383, respectively. Additionally, the Whiff rate soared from 18.5% to an exceptional 31.3%. The Stuff+ metric, which assesses a pitcher's stuff relative to the league average, also saw a leap from 82 in 2023 to a remarkable 115 last year. The Red Sox are confident that they are catching Oviedo at the right moment in his career.
However, it’s crucial to highlight that the sample size from 2025 is relatively small, amounting to just 40.1 innings, and his walk rate, which was already a concern at 4.2 BB/9 in 2023, rose further to 5.1 in 2025. This raises important questions: Will he maintain this upward trajectory, or will his past struggles resurface?
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