Matthew O'Brien Award Pitcher of the Week Week Of 5/5/2025 Sport Baseball School UC Riverside Year Junior Position Left-handed pitcher Hometown Simi Valley, Calif. High School Royal HS UC Riverside pitcher Matthew O'Brien pitched two games, once in relief and once as a starter, and gave up only one run to earn The Big West Baseball Pitcher of the Week award. It is O'Brien's first career weekly honor. In a Tuesday matchup against California Baptist, the Simi Valley, Calif. native threw 2.1 innings of relief, giving up no runs and no walks, while allowing only three hits as the Highlanders won 6-4. O'Brien pitched 7.1 innings against CSUN with nine strikeouts, giving up only one run as UC Riverside prevailed 3-1, Saturday. The Highlander lefty gave up one run in the first and put up zeroes the rest of the way. O'Brien is 4-4 on the year, throwing 52.2 innings in 18 appearances.