Regarded as one of the nation's top assistant coaches, Sean Allen was named Lamar University's head baseball coach on June 2, 2026.
Allen arrives in the Golden Triangle after spending the previous two seasons as pitching coach at Southern California.
He brings more than two decades of coaching experience that includes stops in the Southland Conference, throughout Texas and at some of college baseball's premier programs.
Over the course of his career, Allen has compiled a résumé few can match.
His accomplishments include 82 MLB Draft selections, 18 All-Americans (including six Freshman All-Americans), 16 NCAA Regional appearances, 13 major league players, seven conference players and/or pitchers of the year, nine conference championships, six NCAA Super Regional appearances, three College World Series appearances, three Golden Spikes Award finalists, two Dick Howser Award winners (Ivan Melendez and Brad Lincoln) and one Golden Spikes Award winner (Melendez).
He also helped guide USC to its first Super Regional appearance since 2005 in 2026.
Allen was named D1Baseball's National Assistant Coach of the Year in 2021 while serving as Texas' pitching coach and recruiting coordinator.
He has coached at USC, Texas, Tulane, Sam Houston, Florida International, Houston and Ohio State.
His hiring at Ohio State was ranked No. 4 among D1Baseball's Top 20 Assistant Coach Hires, and two years later he was named to D1Baseball's list of the Top 100 Assistant Coaches Athletic Directors Should Know.
Allen comes to Beaumont following two successful seasons at USC, where he helped build one of the nation's top pitching staffs and guided the Trojans to an 83-39 overall record and a 38-22 conference mark.
In 2026, USC ranked second nationally in hits allowed per nine innings, fourth in ERA and WHIP, 27th in strikeouts per nine innings and led the Big Ten in opponent batting average. That followed a 2025 season in which Allen helped lead the Trojans to their first NCAA postseason appearance in a decade. USC finished among the nation's top 35 in WHIP, hits allowed per nine innings and strikeout-to-walk ratio, while producing four All-Big Ten pitchers, an All-American and a sixth-round MLB Draft selection.
Before joining USC, Allen spent two seasons as associate head coach and pitching coach at Ohio State. The Buckeyes won 30 games in his first season, and the team's ERA improved by nearly a full run per game. During his tenure, Allen coached multiple all-conference pitchers and two MLB Draft selections.
Allen arrived in Columbus after six seasons at Texas, where he demonstrated his versatility by serving as hitting coach and recruiting coordinator before transitioning to pitching coach in 2020. During his tenure, the Longhorns reached four NCAA Regionals and three College World Series.
As Texas' pitching coach from 2020-22, Allen helped six pitchers earn MLB Draft selections, including All-American Bryce Elder, a fifth-round pick who has gone on to become an MLB All-Star and a member of the Atlanta Braves' starting rotation. During his three seasons as hitting coach, eight Longhorn position players were selected in the MLB Draft.
In 2022, Texas ranked 26th nationally in ERA and led the Big 12 at 4.22 while advancing to a second consecutive College World Series. The Longhorns came within one game of the College World Series finals in 2021, finishing with the nation's top ERA at 2.93. That staff was anchored by All-Big 12 starters Ty Madden, the conference Pitcher of the Year, and Tristan Stevens, while Freshman All-Americans Aaron Nixon and Tanner Witt solidified the back end of the bullpen.
Allen also played a key role in recruiting at Texas, helping secure three top-10 recruiting classes, including the nation's No. 1-ranked class in 2020.
In addition to his stops at USC, Ohio State and Texas, Allen has coached at Florida International, Tulane and his alma mater, Houston. As a player, he helped lead the Cougars to three consecutive postseason appearances, including a Super Regional berth.
Allen and his wife, the former Stephanie Beyelia, was a standout soccer player at Houston. He earned his bachelor's degree from Houston in 2001.
