In the world of baseball, the ebb and flow of a pitcher's performance can be as unpredictable as the swing of a bat. This article delves into the intriguing case of starting pitchers who have experienced a decline in both stuff and command since May 1st. It's a fascinating exploration of how these metrics, which can fluctuate throughout the season, impact a pitcher's overall performance and fantasy value.
One pitcher who has caught our attention is Freddy Peralta. Through April, Peralta was commanding his pitches with a 106 Location+. His results were impressive, with a 3.52 ERA, a 15.9% K-BB%, and a 13.1% swinging-strike rate. However, since May 1st, both his Stuff+ and Location+ have declined, leading to a 4.23 ERA, 11.4% K-BB%, and 10% swinging-strike rate. This decline raises questions about the impact of his arm angle, which has fallen to 32 degrees, and the movement of his pitches, particularly the four-seamer and curveball.
Another pitcher on our radar is Ryan Weathers. Weathers has been battling injuries, and his command has been a concern. Through April, his Location+ was strong, but since May 1st, it has slipped. Weathers's changeup, a key pitch, has been thrown higher in the zone, leading to poor outcomes. His four-seamer, while located well, has been hit hard by right-handed hitters. The fact that Weathers lacks extension and has only one above-average pitch by Stuff+ adds to the concern.
J.T. Ginn, a pitcher with a strong command, has also seen a decline in Stuff+ since May 1st. His sinker and slider, once above-average, have slipped, and his changeup is now the only pitch with a Location+ above 100. Ginn's primary pitch, the sinker, has been located lower in the zone, generating weak contact but not as many groundballs. This change in command could impact his performance, especially in a hitter-friendly home park.
Lastly, we have Will Warren, a pitcher who has maintained above-average stuff and command since May 1st. His four-seamer, curveball, and changeup have all contributed to a three-point jump in Stuff+. Warren's changeup, in particular, has been effective, generating downward movement and arm-side fade. However, it struggles to elicit whiffs, which could be a concern. Warren's command across the board supports his outcomes, and his expected ERA metrics are under 3.80.
In conclusion, these pitchers' struggles with stuff and command since May 1st provide valuable insights for fantasy managers. While some, like Peralta and Weathers, have seen a decline in performance, others like Warren have maintained their command. The impact of arm angle, pitch movement, and command on a pitcher's overall performance is undeniable, and it's crucial to monitor these changes throughout the season.
