The baseball season is young, but already we're seeing signs of pitchers who are transforming their game. The 'Stuff+' metric, which measures pitch velocity, movement, and overall pitch quality, provides an interesting lens into these transformations. Here's a deep dive into some of the pitchers who have shown significant improvements in their 'Stuff+' numbers over the last month, and what it might mean for their future performance.
Roki Sasaki: The Hard Splitter
Roki Sasaki has been a standout performer, with a notable improvement in his 'Stuff+' numbers. His move to a harder splitter in favor of the forkball has been a game-changer. This change has given him more in-zone options, resulting in a significant improvement in his strikeout-to-walk ratio. While velocity gains have also played a role, the shift in pitch selection has been a key factor in Sasaki's success. This transformation raises an interesting question: Can Sasaki sustain this elite performance throughout the season?
Aaron Nola: Velocity and Left-Handed Struggles
Aaron Nola's 'Stuff+' numbers have improved, but his overall performance against left-handed batters remains a concern. Despite a slight increase in velocity, Nola's strikeout-to-walk ratio and SIERA (a measure of a pitcher's earned run average) are still subpar. The issue lies in his pitch selection against lefties. While his four-seam fastball is getting pummeled, he's had to rely more on his cutter. This shift in pitch usage highlights a deeper question: How can Nola improve his performance against left-handed batters?
Emmet Sheehan: Velocity and Pitch Mix
Emmet Sheehan's velocity chart has been a rollercoaster, but his 'Stuff+' improvement is largely attributed to added velocity on his four-seam fastball. Sheehan has also added more cut to his slider and de-emphasized the changeup. However, left-handed batters are slugging .496 against him. This raises a deeper question: How can Sheehan optimize his pitch mix to improve his overall performance?
Noah Cameron: Curveball and Slider Dominance
Noah Cameron's curveball and slider have seen significant improvements, with added velocity and break. His four-seam velocity has held steady, and he now boasts three plus pitches. This transformation suggests that Cameron is on the right track to sustain his high-3s ERA and good WHIP. The question remains: Can Cameron maintain this level of performance throughout the season?
Jack Flaherty: Velocity and Slider Dominance
Jack Flaherty's velocity has been wild, with some of his best velocities coming in recent starts. His slider velocity has also improved, leading to a higher whiff percentage. This has resulted in a significant improvement in his strikeout-to-walk ratio. However, the shaky foundation of his fastball velocity raises a question: Can Flaherty sustain this level of performance?
Sean Burke: Slider Improvement
Sean Burke's fastball has been a cornerstone of his pitching, but it's his slider that has seen the most improvement. Burke has added horizontal and vertical break to the pitch, resulting in a high whiff rate. This transformation has solidified his status as an every-start fantasy baseball option. The question remains: Can Burke maintain this level of performance?
Justin Wrobleski: Slider and Changeup Dominance
Justin Wrobleski's slider and changeup have been key to his success. His slider is two ticks harder, and his changeup has a new split-change grip. This has led to a significant improvement in his strikeout-to-walk ratio. The question remains: Can Wrobleski sustain this level of performance and become a key player for the Dodgers?
In conclusion, these pitchers have shown significant improvements in their 'Stuff+' numbers, but the question remains: Can they sustain this level of performance? The answer lies in their ability to maintain these changes and adapt to the challenges of the baseball season.
