Nate Espelin is a left-handed pitcher from Belmont, MA. He earned All-Scholastic honors in 2017 and 2018, was named Middlesex League Co-MVP in 2018 at Belmont High School, and became a New England Champion with the Winchendon School in 2019. That same year, he was drafted by the New York Yankees in the 35th round.

Nate pitched at the University of Dayton from 2019 to 2023 and led Seton Hall in appearances during the 2024 season. Most recently, he pitched for the High Point Rockers in the Atlantic Professional Baseball League in July and August 2024.