Red Sox To Extend Aroldis Chapman

The Red Sox have agreed to an extension with left-hander Aroldis Chapman that will keep the star reliever in town for the 2026 season, according to a report from Francys Romero of BeisbolFR. Romero adds that the deal includes an option for the 2027 season, which Chris Cotillo of MassLive adds is a vesting/mutual option. Cotillo goes on to report that Chapman is guaranteed $13.3MM by the deal, and that if the Wasserman client throws enough innings to vest his 2027 option he’ll earn $26MM over two seasons.

It’s not often that a player gets a raise headed into his age-38 season, but the fact that Chapman’s salary will jump by roughly $3.5MM headed into 2026 is a testament to the sensational season the veteran closer has had during his first year in Boston. Signed to a one-year, $10.75MM guarantee last November, the eight-time All-Star and two-time World Series champion has turned back the clock to produce what is arguably the best season of his entire career and undoubtedly his most impressive performance in nearly a decade.

In 57 games for the Red Sox this year, Chapman has pitched to an otherworldly 1.04 ERA while striking out 38.7% of his opponents. That’s the lowest ERA in the majors among qualified relievers, and only Mason Miller has struck out batters at a higher clip this year. Chapman’s 2.02 SIERA, 1.83 FIP, and 2.2 fWAR are all also MLB-best totals. If the newly-unveiled Relief Pitcher of the Year award was in play for the 2025 season, Chapman would be a slam dunk to win it in the American League. As it stands, he’ll have to settle for closing out big games for what is extremely likely to be a playoff-bound Boston club down the stretch and into the postseason.

Early in Chapman’s career, it was hardly uncommon for his name to be in the conversation for the best relief arm in baseball at any given moment. The lefty made his big league debut back in 2010 as a member of the Reds and, over his first seven seasons in the majors, pitched to a dazzling 2.08 ERA with an even better 1.88 FIP and struck out 42.6% of his opponents faced. That includes a run of four consecutive All-Star appearances with Cincinnati from 2012-15 and a dominant 2016 season where he pitched to a 1.55 ERA with the Yankees and Cubs before throwing 15 2/3 innings for Chicago in the postseason en route to the first World Series championship of his career.

Upon returning to the Yankees in 2016, however, the then-29-year-old Chapman didn’t look quite as dominant. As he’s moved into his thirties, his numbers have remained strong overall but not quite reached the level he enjoyed in the first few seasons of his career. Across eight seasons from 2017 to 2024, Chapman pitched to a 3.17 ERA with a 2.94 FIP, struck out 37.7% of his opponents, and saw his walk rate creep up from 11.6% to 13.6%. After spending parts of seven years with the Yankees, Chapman bounced between the Rangers, Royals, and Pirates before returning to the AL East as a member of the Red Sox this year. Now that Chapman’s posting results in line with those he put up during his peak, his stretch of bouncing between teams every year and facing uncertainty every offseason has come to an end.

Impressive as Chapman’s 2025 campaign has been, it would hardly be reasonable for the Red Sox to assume this is what they’ll get from the lefty going forward. There’s plenty of year-to-year volatility for even the most elite relievers still in their prime, and that rings true all the more for a hurler with a middling 3.68 ERA over his last three seasons prior to this year who is now looking ahead to his age-38 season. Chapman’s age is surely why his extension is limited to just one guaranteed season. After all, even Kirby Yates’s dominant 2024 season with the Rangers wasn’t able to secure him more than a one-year guarantee from the Dodgers, while David Robertson had to wait until mid-season in order to land what he viewed as appropriate value for his services.

That aforementioned deal between Yates and Los Angeles is a particularly noteworthy comp for Chapman’s deal with the Red Sox, given that Chapman’s $13.3MM guarantee clocks in just $300K ahead of the guaranteed salary Yates is receiving from L.A. this year. While the agreement clocks in $2.7MM back of the $16MM guarantee the Phillies afforded Robertson last month, it must be noted that the deal between Robertson and Philadelphia comes with a notable asterisk: Robertson will only be paid a pro-rated portion of that deal from his signing in late July until the end of the season, which works out to just over $6MM he’ll actually be paid by the Phillies.

All of that is to say Chapman’s deal falls more or less in line with expectations for an aging closer coming off a dominant season. The specific innings threshold Chapman has to meet in order to vest his 2027 option is not known, and where that threshold ultimately falls will determine how realistic that option vesting truly is. A threshold of 50 innings, for example, would be very easy for Chapman to reach given that he’s cleared that benchmark in every full season of his career except for 2022. A 60-inning threshold would be a much taller order, as while Chapman’s 52 innings of work to date suggest he’ll have a real chance to cross that benchmark for the second consecutive season this year, his 2024 season was the first time he threw that many innings in the regular season since 2015.

Regardless of whether Chapman is sticking around for 2027 or not, his continued presence in the late-inning mix for 2026 should be huge for the Red Sox. Chapman can continue to serve as a veteran presence in a bullpen that figures to be quite young next year, with arms like Garrett Whitlock and Justin Slaten pairing with Chapman in the late-inning mix. One other potential x-factor is Jordan Hicks, who has at times been a dominant closer over the years but has struggled badly this year after opening the season in the San Francisco rotation. Perhaps the Red Sox hoped he could step into the closer role in 2026 when they acquired him as part of the return for Rafael Devers back in June, but Hicks has continued to struggle badly since joining the Red Sox and seems more likely to fight to hold onto his roster spot next spring than for a late-inning role. Bringing Chapman back into the fold should help lessen the club’s reliance on Hicks to bounce back, and if he does turn things around he’d form a lethal back-of-the-bullpen duo with the veteran lefty.