Let's talk about Janson Junk, a pitcher who has had an intriguing journey so far in his MLB career. Despite his name being synonymous with 'junkballing,' Junk is on the cusp of a potential breakout season, and I'm here to tell you why.
Junk's story is one of resilience and adaptation. He's been traded multiple times, designated for assignment, and yet, he's found a home with the Miami Marlins, where he's been since 2025. But it's not his journey that has me excited; it's his performance on the mound that has caught my eye.
Setting the Stage: 2025 Season
Last year, Junk's stats might not have jumped off the page, but there were some hidden gems. His FIP (Fielding Independent Pitching) was significantly better than his ERA, indicating that he was pitching well but perhaps getting a bit unlucky. His strikeout rate was consistent, and the real improvement came in his walk rate, which dropped by a substantial 5.4%. This suggests that Junk was gaining better control over his pitches.
The 2026 Upgrade: Confidence and Command
This season, Junk has taken his game to the next level. He's gained confidence in his command, which has allowed him to improve his stuff and optimize his pitch usage. His fastball, slider, and changeup have all seen significant upgrades in terms of 'Stuff+,' which is Pitcher List's metric for grading both pitch location and quality. Junk's overall arsenal has improved, and his PLV (Pitcher List Value) is now in the 94th percentile.
The key to Junk's potential success lies in his ability to locate his fastball up in the zone. The height-adjusted VAA (Vertical Angle of Arrival) of his fastball is in the 94th percentile, creating a challenging angle for hitters. However, Junk's HiLoc% (High Location Percentage) is currently in the fourth percentile, meaning he's not taking full advantage of this strength. If he can consistently locate his fastball higher in the zone, it will not only generate more whiffs on its own but also set up his other pitches beautifully.
The Art of Deception: Tunneling and Location
Junk's secondary pitches, including his slider, sweeper, and changeup, have all added drop this season. This, combined with the improved vertical movement on his fastball, creates an even more deceptive arsenal. When Junk can locate his fastball higher, it allows his other pitches to tunnel effectively, creating a larger area of the strike zone for hitters to contend with. This strategy keeps hitters guessing and off-balance, especially when they have to identify spin on a wide mix of pitches.
The Challenge: Generating Whiffs
Despite the improvements in his stuff, Junk's strikeout rate hasn't increased significantly. His slider and sweeper, in particular, are struggling to generate whiffs and putaway rates, especially in two-strike counts. This is where Junk needs to focus his attention. By refining his location and utilizing the deceptive nature of his pitches, he can become a true strikeout artist.
Conclusion: The Breakout Season?
Janson Junk has all the tools to have a breakout season in 2026. His command, stuff, and pitch optimization are all pointing in the right direction. If he can fine-tune his location, especially with his fastball, and continue to develop his secondary pitches, he could become a dominant force on the mound. It's an exciting prospect, and I, for one, am eager to see how Junk's story unfolds this season.
