BIOGRAPHY
Justin Dunn was born on September 22, 1995, in Freeport, New York. He is a pitcher in the MLB.
Dunn was born in Freeport, New York to Ed, a grant administrator, and Donna, a health company recruiter. As an eighth grader, he was noticed playing at a showcase with the Boys Club of New York by the baseball coach of The Gunnery, a boarding school in Washington, Connecticut. At 13 years old, Dunn left his family on Long Island to attend The Gunnery.
The Los Angeles Dodgers selected Dunn in the 37th round of the 2013 Major League Baseball draft. He did not sign and attended Boston College to play college baseball for the Boston College Eagles. As an 18-year-old freshman in 2014, Dunn pitched 12 1⁄3 innings. He went 1–1 with a 7.30 earned run average (ERA) and 12 strikeouts. As a sophomore, he appeared in 20 games with three starts. A month into the season he became the team's closer. He finished the year 4–4 with a 4.94 ERA, 46 strikeouts and five saves. After the 2015 season, he played collegiate summer baseball with the Cotuit Kettleers of the Cape Cod Baseball League. Dunn started his junior year as the closer, but was moved into the starting rotation during the season. He recorded a 2.06 ERA with a 4–2 record in his junior season.
Dunn was drafted by the New York Mets in the first round of the 2016 MLB draft. He signed with the Mets and was assigned to the Brooklyn Cyclones, where he spent all of 2016, posting a 1–1 record with a 1.50 ERA in 11 games (eight starts).
On December 3, 2018, the Mets traded Dunn to the Mariners.
In 2020, he led the AL in stolen bases allowed, with 13.
