PJ Poulin Bio
Peter Arthur Poulin, known professionally as PJ Poulin, is an American professional baseball pitcher for the Washington Nationals of Major League Baseball (MLB). Born on July 25, 1996, in Marion, Massachusetts, he made his MLB debut in 2025 after several seasons in the minor leagues. A relief pitcher who works out of the bullpen, Poulin has built his career on consistency and strike-throwing, progressing through multiple levels of the minor leagues before reaching the majors.
Drafted by the Colorado Rockies in 2018, Poulin developed into a reliable arm across the Rockies, Tigers, and Nationals systems. His path through the minors included stints in Low-A, Single-A, High-A, Double-A, and Triple-A, where he established himself as a dependable late-inning option.
Early Life and Background
Peter Arthur Poulin was born and raised in Marion, Massachusetts, a coastal town on the South Shore of the state. Growing up in New England provided him with early access to a strong amateur baseball culture, and he developed his pitching skills through local youth programs before moving on to prep competition. Marion’s baseball community helped shape his work ethic and his approach to the game.
Poulin attended Tabor Academy, a private preparatory school in Marion, Massachusetts, where he played on the school’s baseball team. His performance at Tabor drew attention from college recruiters, and he ultimately committed to continue his career at the University of Connecticut. The combination of strong coaching at Tabor and a competitive New England baseball circuit prepared him for the next step in his development.
Path to Baseball
At the University of Connecticut, Poulin pitched for the Huskies as a college baseball player, refining his mechanics and building the durability needed for a professional career. In the summer of 2017, he played collegiate summer baseball with the Bourne Braves of the Cape Cod Baseball League, one of the most prestigious amateur leagues in the country. The Cape Cod League is widely regarded as a top showcase for college players, and Poulin’s performance there helped raise his draft profile.
His college progression and summer league experience set the stage for the 2018 MLB Draft. Scouts noted his ability to miss bats and his composure on the mound, traits that made him an attractive mid-round selection.
PJ Poulin Career
Early Career (2018-2019)
Poulin was drafted by the Colorado Rockies in the 11th round, with the 336th overall selection, of the 2018 Major League Baseball draft. He made his professional debut that same year with the Low-A Boise Hawks, where he recorded a 1.96 ERA over 24 games, an impressive start that demonstrated his readiness for higher levels of competition. The 2018 season established the foundation of his professional track record and gave the Rockies organization confidence in his future role.
In 2019, Poulin advanced to the Single-A Asheville Tourists and made 54 appearances, posting a 3-3 record and a 2.90 ERA with 67 strikeouts and 13 saves over 59 innings. The 13 saves underscored his growing reputation as a late-inning reliever, and his high strikeout rate highlighted his ability to finish hitters in pressure situations.
High-A and Double-A Progression (2021-2022)
Poulin did not appear in a game in 2020 due to the cancellation of the minor league season caused by the COVID-19 pandemic. He returned to action in 2021, splitting the year between the High-A Spokane Indians and the Double-A Hartford Yard Goats. Across 44 appearances, he compiled a 3-1 record and a 3.63 ERA with 59 strikeouts and four saves in 44 and two-thirds innings, showing continued development against more experienced hitters.
In 2022, Poulin spent time at both Double-A Hartford and the Triple-A Albuquerque Isotopes. In 55 bullpen appearances, he logged a combined 8-1 record and a 4.15 ERA with 79 strikeouts and six saves over 60 and two-thirds innings. The eight wins signaled his ability to contribute in high-leverage situations and helped him move closer to the major leagues.
Triple-A and Detroit Tigers (2023-2025)
Poulin made 32 appearances for the Triple-A Albuquerque Isotopes in 2023, registering a 3-3 record and a 5.44 ERA with 39 strikeouts across 49 and two-thirds innings pitched. The season represented a learning year at the highest level of the minors. On March 24, 2024, Poulin was traded to the Detroit Tigers in exchange for cash considerations, beginning a new chapter in his career.
With the Tigers organization in 2024, he split the year between the Double-A Erie SeaWolves and the Triple-A Toledo Mud Hens, accumulating a combined 2-1 record and a 2.10 ERA with 73 strikeouts in 60 innings pitched across 45 games. On July 6, 2025, the Tigers added Poulin to their 40-man roster after he exercised an upward mobility clause in his contract, and he was subsequently optioned back to Triple-A Toledo. He was designated for assignment on July 31 to clear roster space for pitcher Charlie Morton, who was acquired at the trade deadline.
Washington Nationals Era (2025-Present)
On August 3, 2025, Poulin was claimed off waivers by the Washington Nationals, and two days later he was promoted to the major leagues for the first time. In his major league debut at Nationals Park in Washington, D.C., on the evening of August 5, he pitched a scoreless sixth inning against the Athletics, giving up two singles but finishing his outing with a strikeout. The debut was a steady introduction to the highest level of professional baseball.
On August 22, Poulin recorded his first career win, tossing two scoreless innings of relief against the Philadelphia Phillies. Later, on September 20, he recorded his first career save, pitching a scoreless inning against the New York Mets. Through the early portion of his major league career, he has posted a 5-1 win-loss record, a 3.33 earned run average, and 46 strikeouts, wearing jersey number 50 for the Nationals.
Notable Events and Milestones
Poulin’s first career save on September 20 against the New York Mets marked an important milestone in his transition from prospect to established reliever. His MLB debut on August 5, 2025, at Nationals Park was a defining moment after years of climbing through the minor leagues. The combination of his first win against the Phillies and his first save against the Mets within the same season underscored his late-inning value to the Nationals.
PJ Poulin Career Wins
Peter Arthur Poulin’s career win total spans both the minor leagues and Major League Baseball. His first major league victory came on August 22, 2025, against the Philadelphia Phillies, when he delivered two scoreless innings of relief. As a relief pitcher, his wins have come in high-leverage situations rather than starting assignments, a role he has embraced throughout his professional career.
PJ Poulin Family
Personal Life
Peter Arthur Poulin was raised in Marion, Massachusetts, and is an American by nationality. He attended Tabor Academy in Marion before continuing his baseball career at the University of Connecticut. Publicly available information about his personal and family life beyond his upbringing and education is limited.
2025 Season Performance
The 2025 season marked PJ Poulin’s arrival in Major League Baseball. After being designated for assignment by the Detroit Tigers on July 31, he was claimed off waivers by the Washington Nationals on August 3 and quickly promoted to the majors. His MLB debut on August 5 against the Athletics, followed by his first career win on August 22 against the Phillies and his first career save on September 20 against the Mets, defined a memorable introduction to the big leagues. The strong finish helped him cement a role in the Nationals’ bullpen.
Statistically, Poulin posted a 5-1 record with a 3.33 ERA and 46 strikeouts during his initial major league work, demonstrating both poise and swing-and-miss stuff. The combination of his work in the Tigers’ system earlier in the year and his late-season surge with Washington set the stage for continued development. His blend of minor league experience and early major league success suggests a bright future in the Nationals’ bullpen as the organization builds around a new core of arms.