The Washington Nationals officially named Simon Mathews the team’s pitching coach on Tuesday. The announcement was made by Nationals President of Baseball Operations Paul Toboni and Manager Blake Butera.

Mathews, 30, joins the Nationals after five seasons with the Cincinnati Reds, most recently as their assistant pitching coach in 2025. He spent four seasons in Cincinnati’s Minor League system, serving as their assistant coordinator of rehabilitation and pitching initiatives (2023-24), rehab pitching coordinator (2022) and, in his first season in 2021, implemented the club’s pitching program at its academy in the Dominican Republic.

“Simon brings a tremendous amount of knowledge and a wide range of experience to our staff,” said Butera. “He is grounded, has great perspective on pitching and connects incredibly well with players at all levels. He is widely respected throughout the game and the type of coach that makes everyone around him better. Simon is a tireless worker and is uniquely equipped to help our pitchers reach their full potential.”

Mathews was the director of pitching at Push Performance in Tempe, Ariz. and an online trainer at Driveline Baseball prior to joining the Reds organization in 2021. In those roles, he designed throwing programs for pitchers, with an emphasis on improving movement patterns and velocity and promoted arm health.

Mathews signed with the Los Angeles Angels as a non-drafted free agent following the 2017 First-Year Player Draft and went on to pitch three seasons (2017-19) in their system. He appeared in 71 professional games, advancing as high as Triple-A Salt Lake in 2018 and 2019.

A 2017 graduate of Georgetown University, Mathews pitched for the Hoyas from 2015-17 after transferring from Temple University following the 2014 season. As a senior in 2017, he set a school record with 85 strikeouts and finished his career in the top 10 in program history in wins (14), ERA (3.72) and strikeouts (186). Mathews graduated with a degree in political economy and minors in Spanish and Portuguese.