On July 3, 2026, in a game against the Los Angeles Angels, Boston Red Sox closer Aroldis Chapman set the all-time record for strikeouts by a relief pitcher. 11 days later, he will pitch in his ninth career All-Star Game in Philadelphia at 38 years old.
Aroldis Chapman records career strikeout No. 1,364!
He has set a new all-time record for strikeouts by a relief pitcher 👏 pic.twitter.com/tdzaYmdGKJ
— MLB (@MLB) July 4, 2026
By striking out Denzer Guzman, Chapman recorded strikeout No. 1,364, passing Hall of Famer Hoyt Wilhelm for the most of all time. It took Chapman 125 fewer relief appearances to break the record than it did for Wilhelm.
The Cuban Missile continues to dominate Major League Baseball, even in his 17th season after coming to America. He has been a game-changing pitcher with every organization he has played with, whether that be with the Cincinnati Reds, New York Yankees, Chicago Cubs, Kansas City Royals, Texas Rangers, Pittsburgh Pirates, and now the Boston Red Sox.
The past two seasons in Boston have been uniquely fascinating to watch, as Aroldis Chapman came to Boston following a one-year tenure in Pittsburgh, where he posted a 3.79 ERA with only 14 saves. In the few seasons before that, Chapman had sometimes even been removed from the closer role, most notably being replaced by Clay Holmes in the Bronx in 2022.
But in Boston, Chapman has not only returned to All-Star form, but still maintains the incredible velocity that helped him burst onto the scene in the early days of his MLB career. Last year, at age 37, he threw the fastest pitch ever recorded by a Red Sox pitcher, at 103.8 miles per hour. And this year, the average velocity on his sinker and his four-seamer are 98 and 96.9 mph, respectively.
103.8 MPH
Aroldis Chapman threw the fastest pitch by a @RedSox pitcher in the pitch tracking era (since 2008) and the fastest pitch in the Majors this season 😳 pic.twitter.com/28T641gjnH
— MLB (@MLB) May 8, 2025
Chapman’s 2025 was incredible, as he was named an All-Star, owned a 1.79 ERA, and recorded 32 saves in 61 1/3 innings of work. This year, he has pitched to 2.20 ERA and has converted 19 saves.
His new pitch repertoire is a key reason for his return to the spotlight, as his sinker usage in 2026 is the most it has ever been in his career at 36.4%, according to Baseball Savant. His splitter, which he started throwing in 2020, has also been very effective over the last two seasons, yielding an opposing batting average of .130 in that time span.

