Five bats improving their stock ahead of free agency

With the midpoint of the 2023 regular season fast approaching, the 2023-24 free agent class is beginning to solidify. The coming class has long been considered one deep in pitching but light on potentially impactful hitters. While that evaluation has mostly held up throughout the first half of the season, a handful of surprising hitters are on track for a healthy payday this winter, should their performance hold up throughout the rest of the year.

Each of these players has appeared primarily as a DH in 2023, meaning they would offer prospective suitors little in the way of defensive value. Still, each could find himself among the top options for teams looking to add thump to their lineup without breaking the bank for the likes of Shohei Ohtani or Matt Chapman. Let’s take a look at five hitters who are helping to transform the complexion of the coming class of free agent hitters, in ascending order based on their wRC+ in 2023:

Justin Turner, Red Sox (121 wRC+):

After nine seasons with the Dodgers, the club’s longest-tenured hitter departed Los Angeles over the offseason, eventually landing with the Red Sox on a complex two-year deal with an opt-out following the 2023 campaign. Despite concerns that the veteran infielder was headed for a downturn in terms of production as he entered his late thirties, Turner has managed to stave off father time through his first 67 games in Boston, slashing .278/.356/.451 across 289 plate appearances.

That quality slash line comes with excellent peripheral numbers, as well: his 14.5% strikeout rate remains elite, and his 9.7% walk rate is well above league average in its own right. His chase rate has actually improved since last season, as his 65th percentile rank in 2022 has rocketed to the 80th percentile in 2023. Those improvements leave Turner with a .363 xwOBA that would be his best in a 162-game season since 2019. While there’s some cause for concern about the veteran’s power production going forward, as his barrel rate has dipped from 8% last season to just 6% in the current campaign, Turner seems all but certain to beat the $6.7M he’d be leaving on the table by returning to the open market this offseason as long as he stays healthy and avoids a significant downturn in production in the second half.

Andrew McCutchen, Pirates (122 wRC+):

After posting the first below-average offensive season of his career (98 wRC+) with the Brewers in 2022, McCutchen decided to return to Pittsburgh, where the veteran outfielder was drafted in the first round of the 2011 draft, played for nine seasons, and earned an MVP award. He and the Pirates agreed to a one-year, $5M deal that has worked out splendidly for both sides: McCutchen has slashed .262/.379/.424 across 256 plate appearances in his age-36 season while recording his 2,000th hit in a Pirates uniform as the club has bucked expectations in the first half of the season, posting a 34-36 record that leaves them just 2.5 games out of first place in the NL Central.

When McCutchen returns to free agency following the 2023 campaign, the decorated veteran figures to have recorded his 300th home run and 400th double in addition to his aforementioned 2,000th hit. On top of those career milestones, McCutchen has experienced nothing short of a career renaissance in returning to Pittsburgh. His 19.5% strikeout rate is the lowest it's been since he left Pittsburgh following the 2017 season, while his 16% walk rate ranks sixth among all qualified hitters. His chase rate is similarly elite, ranking in the 95th percentile of qualifying hitters. Though he’s appeared in the outfield just eight times this season, McCutchen’s resurgence in 2023 seems all but guaranteed to allow him to continue his career into 2024 and beyond, whether that be with the Pirates or elsewhere.

J.D. Martinez, Dodgers (131 wRC+):

While the previous two veterans on this list have found success by combining roughly average power with elite plate discipline, Martinez has largely done the opposite throughout his career. Once among the league’s most fearsome sluggers as he challenged for a Triple Crown in the AL back in 2018 en route to a 4th place finish in MVP voting, Martinez’s final seasons in Boston saw the slugger’s production decline, as he posted a wRC+ of 116 from 2020-22 with an ISO of just .199 after posting marks .228 or higher in every season from 2014-2019.

After signing with the Dodgers on a one year deal worth $10M, Martinez seems to have rediscovered his power stroke in 2023. He’s already slammed 16 home runs in 55 games this season, matching the total he managed across 139 games in 2022. That being said, the renewed power has come at the cost of plate discipline: Martinez’s 5.6% walk rate would be his lowest over a full season since 2013, while his 29.9% strikeout rate would be the highest of his entire career. Still, it’s hard to argue with the results, as Martinez’s current wRC+ and xWOBA would both be his best since the aforementioned 2019 season if maintained over a full season while his ISO leads the majors among qualified hitters. In his return to free agency this offseason, Martinez figures to offer elite power production out of the DH spot, even entering his age-36 campaign.

Joc Pederson, Giants (149 wRC+):

The Giants raised some eyebrows this past offseason by extending Pederson a Qualifying Offer after a phenomenal 2022 campaign, but the lefty-swinging slugger has quieted doubters by improving on last season’s performance in 137 plate appearances in 2023. While his .237 ISO has dipped slightly as compared to last season’s .247 mark, Pederson has more than made up for it by raising his walk rate from an above-average 9.7% clip in 2022 to a whopping 14.6% this season as his 21.2% strikeout rate in 2023 would be his lowest since 2018.

What’s more, unlike the three veterans we’ve discussed to this point, Pederson will be just 31 years old on Opening Day 2024, making him a safer bet to stave off age-related decline than any of Turner, McCutchen, and Martinez. That being said, Pederson is not without flaws. He sports a worrisome platoon split, with just a .626 OPS against lefties in his career, and has largely been platoon-protected during his time with San Francisco. What’s more, he’s struggled to stay healthy this year, with two stints on the injured list already in the young 2023 campaign. Despite those flaws, though, Pederson’s lefty power represents one of the more impactful bats available via free agency this offseason.

Jorge Soler, Marlins (150 wRC+):

After struggling to a below-average .207/.295/.400 slash line in the first year of his three-year, $36M pact with the Marlins last season, Soler has exploded in 2023 as one of the top power threats in the majors. His .298 ISO ranks fifth among all qualified major leaguers, behind only Martinez, Ohtani, Pete Alonso, and Yordan Alvarez. He’s already clobbered 20 home runs in just 282 plate appearances this season, matching the pace of his 48-homer campaign with the Royals in 2019. Soler has paired that elite power production with an elite 12.8% walk rate that would be a career-best over a full season. While he’s still striking out at an elevated 24.1% clip, that figure is still a marked improvement over last season, during which he punched out in 29.4% of his plate appearances.

Like Pederson, Soler is in the midst of his age-31 season, meaning he could be an attractive candidate for multi-year offers from power-needy teams this offseason. Soler also boasts a more palatable platoon split: while he hits lefties far better than righties for his career, he’s still managed a .775 OPS against right-handers in his career, including a .807 figure in 2023. That being said, one potential cause for concern regarding Soler is his health, as the slugger spent the majority of the second half on the shelf with lower back spasms in 2022. If Soler can stay healthy and productive throughout the second half of the 2023 campaign, however, he could put his reputation as one of the sport’s most mercurial hitters to rest and emerge as one of the top offensive players in the coming free agent class, easily eclipsing the $9M he would leave on the table by opting out of his deal with the Marlins to test free agency.