Craig Breslowis widely known for blending intellect and athletic talent to build a rare career in baseball. He graduated from Yale University with degrees in molecular biophysics and biochemistry before reaching the major leagues in 2005, making him the first Yale alum to play in MLB since Ron Darling. During his 12-year pitching career, Breslow earned two World Series rings and was often called “the smartest man in baseball.” Today, he leads the Boston Red Sox as chief baseball officer, guiding player development and strategy with a sharp analytical mind. Craig Breslow was born in New Haven, Connecticut, and grew up in Trumbull, Connecticut. He is Jewish, attended Hebrew school, and had his bar mitzvah in 1993 at Congregation B'nai Israel in Bridgeport. His father, Abe Breslow, was a teacher, department chair in physal education and health, and coach at Trumbull High School. His mother, Ann Breslow, taught math in Bridgeport.
In 1992, when Craig was 12, his older sister Lesley was diagnosed with thyroid cancer. The experience had a lasting effect on him and sparked his interest in medicine, leading him to study molecular biophysics and biochemistry later in college.
He attended Trumbull High School, where he stood out in both baseball and soccer. As team captain in his senior year, he pitched the winning game in the state baseball championship and was chosen for the Connecticut/Massachusetts All-Star Game at Fenway Park. He also helped lead the soccer team to its first state tournament win and scored exceptionally from wide angles. Academically, he scored 1420 on his SAT before enrolling at Yale University.
Craig Breslow was drafted by the Milwaukee Brewers in the 26th round of the 2002 MLB Draft out of Yale University. He spent a couple of years in the Brewers’ minor leagues before pitching in an independent league (Northeast League) in 2004. In 2005, he earned a spot with the San Diego Padres, debuting on July 23 with strong relief work.
Over the next 12 years, Breslow pitched for several MLB teams: the Padres, Red Sox, Indians, Twins, Athletics, Diamondbacks, and Marlins. He won two World Series rings with Boston in 2013 and 2015, became known for his effective left-handed relief, and recorded a career ERA of 3.45 with 442 strikeouts.
After retiring as a player in 2017, Breslow transitioned to an executive career. He joined the Chicago Cubs' front office in 2019 as assistant general manager. In October 2023, he returned to Boston to take on the role of chief baseball officer, overseeing scouting, analytics, and team strategy.