Trade Deadline Impact on Hitter Performance: A PLV Decision Value Analysis
Unpacking Hitter Valuations: Post-Trade Deadline Insights
Deciphering Player Valuations Through Advanced Metrics
Pitcher List utilizes a sophisticated array of metrics, collectively known as PLV, to meticulously dissect every single pitch thrown in a baseball game. Among these, Decision Value (DV) stands out as a crucial tool for evaluating a hitter's swing decisions. This metric considers a multitude of factors, such as the pitch's velocity, its precise location within the strike zone, and its movement, to determine whether a hitter made an optimal choice in deciding to swing or let a particular pitch go by. Unlike traditional plate discipline, DV delves deeper, recognizing that even swinging at a strike can lead to an unfavorable outcome if the contact generated is weak, such as a ground ball. Conversely, it celebrates hitters who actively pursue pitches they can drive powerfully and prudently avoids those less likely to yield quality contact. It also penalizes those who pass on hittable pitches or swing at pitches with low probability of solid contact.
The Stirring Aftermath of the Trade Deadline
The recent trade deadline concluded with a flurry of activity, following a period of relative calm. Beyond the usual exchange of starting pitchers and middle relievers, a significant number of everyday position players also found themselves changing teams. This week's edition of PLV DV Weekly turns its attention to these newly traded hitters, offering a glimpse into the performance expectations their new organizations might hold. Notably, certain players like Liam Hicks and Taylor Ward have been excluded from this particular analysis due to recent in-depth coverage. Similarly, Luis Arraez was highlighted as a potential trade candidate in a prior discussion.
Adley Rutschman: The Selective Powerhouse Joins Boston
Adley Rutschman's significant move to the Red Sox involved the exchange of three of Boston's top five prospects, with the Red Sox notably retaining Franklin Arias. Rutschman burst onto the scene with two seasons of performance roughly 30% above the league average at the plate in 2022-23. Despite a dip in form during an injury-affected 2024 and 2025, his exceptional strikeout-to-walk rates have been a constant. He has consistently maintained a strikeout rate below 18.3% and a walk rate above 9.1%. In his current rebound season, Rutschman is walking in 10.6% of his plate appearances and striking out in 14.1%, figures close to his career averages, indicating a more frequent engagement with the ball. Rutschman's approach is characterized by passivity, with a swing rate hovering around 41% this season. His above-average 104 DV is somewhat tempered by a 92 zDV, reflecting his selective approach within the strike zone. He swings at only 57.8% of strikes, a rate that has steadily declined throughout his major league career. While not as passive as former teammate Taylor Ward, Rutschman's zSwing ranks among the lowest, at 226th out of 242 qualified hitters. Despite this, success is achievable with such an approach, as evidenced by Gabriel Moreno's strong batting line. The key difference between Moreno and Rutschman lies in their contact quality; while both have average Statcast hard-hit metrics, Moreno utilizes the entire field, whereas Rutschman is predominantly pull-focused. This pull-heavy approach could prove advantageous in Fenway Park, with its shorter dimensions down the lines.
Brenton Doyle: A Defensive Star's Recent Struggles
Brenton Doyle experienced a breakthrough season in 2024, achieving near-league-average offensive production alongside elite center field defense. However, his subsequent performance has been less favorable, with his wRC+ falling to 65 in 2025 and 50 in an injury-disrupted 2026. More concerning is the decline in his defensive metrics this season, placing him significantly below replacement level in just 46 games. Despite increasing his chase rate, Doyle has improved his walk rate this year, likely due to a shrinking strike zone under the new ABS system. He has also become more aggressive within the zone, swinging at a career-high 52.6% of pitches. While his contact quality metrics appear stable, a two-year decline in his launch angle has led to a corresponding decrease in his expected wOBA on contact. Ultimately, the central question surrounding Doyle's long-term viability as a major league center fielder revolves around his ability to rediscover the defensive prowess that defined his early career; his offensive contributions remain a secondary concern.
Jo Adell: Aggression and Improved Contact for the Guardians
Jo Adell presents a stark contrast in batting philosophy to his new teammate, Steven Kwan. Beyond their physical attributes, the two Guardians outfielders employ dramatically different approaches at the plate. Adell's aggression is often a double-edged sword, as he swings at 36.2% of pitches outside the zone and 74.3% of strikes. While this demonstrates a very favorable zSwing-oSwing split, his overall aggressiveness has resulted in a walk rate in the 2nd percentile. Among qualified hitters, Adell ranks 10th in zone swing rate, whereas Kwan sits at the bottom. Given Adell's exceptional bat speed (averaging 77 mph), maximizing his opportunities to put the ball in play is crucial. Importantly, he appears to have addressed some of the contact issues that plagued him earlier in his career. Adell's zone contact rate has steadily improved, reaching a career-high of 86.1% this season. Combining this with his aggression in the strike zone, Adell's probability of putting a strike in play is nearly 64%, ranking him 18th in baseball.
Marcelo Mayer: Unlocking Potential After a Red Sox Departure
Marcelo Mayer's young career has been marked by his commendable swing decisions at the plate. He is an aggressive hitter, swinging at 73% of pitches in the zone and 29% outside of it, yielding an excellent 44% zSwing – oSwing. Coupled with his 74 mph bat speed, it is evident why Mayer was so highly regarded as a prospect, and why the Red Sox's decision to trade him for a minimal return puzzled many. However, a closer examination of his pitch-type splits reveals a struggle against off-speed pitches during his time in the majors. Mayer has nearly 20% career swinging strike rates on every non-fastball pitch type, yet he swings at roughly similar rates across all pitch types. If Mayer can transform his .493 OPS against pitches other than four-seam fastballs or sinkers into something closer to his .762 OPS against those pitches, the Red Sox might come to regret selling low on his potential.
Lars Nootbaar: Aggression in the Zone for Arizona
Lars Nootbaar is another hitter characterized by a low swing rate, even more pronounced than Rutschman's. His zone DV is a modest 77, while his oDV stands at a strong 114, thanks to an 18% chase rate and a 53% zone swing rate. Nootbaar's zDV has declined this year, partly due to a further reduction in an already low zone swing rate, but primarily because of the specific pitches he has stopped pursuing. In previous seasons, Nootbaar swung at 56% of strikes, increasing to 63% for pitches in the heart of the zone as defined by Statcast. This season, he has cut 3 percentage points from his swinging strike rate, with all of this reduction coming from pitches located in the heart of the zone. Nootbaar possesses above-average bat speed and an 85th percentile average exit velocity. Both he and the Diamondbacks would benefit significantly from him adopting a more aggressive approach within the strike zone, especially considering his career 87% zone contact rate.
Heliot Ramos: The Yankees' Aggressive Newcomer
Heliot Ramos exhibits slightly below-average performance across all aspects of swing decision-making. He is an exceptionally aggressive hitter, chasing pitches 37% of the time while also swinging at 71% of strikes, resulting in a 98 zDV and a 98 oDV. This marks a notable shift from 2025, a season where Ramos's chase rate was under 30% and his strike swing rate was 66.1%. This heightened swing frequency has contributed to Ramos's low walk rates, with this year's 5.2% representing a career low. Two years ago, Ramos's profile resembled Adell's, boasting a 75 mph average bat speed that translated to a 17.3% HR/FB rate. However, over the past two seasons, Ramos's bat speed has decreased by three ticks. Despite this, he continues to hit the ball with comparable force. Nevertheless, I harbor skepticism regarding the long-term viability of his current approach if he is unable to regain his lost bat speed.
Luis García Jr.: Power and Contact in Pinstripes
Luis García Jr. joins the ranks of hyper-aggressive hitters, finding a new home with the Yankees alongside his compatriot Ramos. Unlike Ramos, Garcia is unlikely to experience significant benefits from the change in ballparks, as Nationals Park and Yankee Stadium possess similar park factors, though Yankee Stadium does tend to favor home runs more. This season, Garcia has swung at 70.8% of strikes, but this has been accompanied by his highest chase rate since 2022, at 39.9%. Remarkably, Garcia makes an exceptional amount of contact outside the strike zone for a player who isn't merely swinging at pitches near the plate, resulting in an overall contact rate of 83.7%. His bat speed is moving in the opposite direction of Ramos's, having increased by over 2 ticks since 2024 while maintaining his excellent contact rates. Garcia is now hitting the ball harder than ever before and is also lifting it more (though still only at a 12-degree launch angle), developments that should undoubtedly delight Yankees fans as he dons the pinstripes.