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Jersey Number 23
Matthew O'Brien
- Position:
- Left-Handed Pitcher
- Class:
- Senior
- Hometown:
- Simi Valley, Calif.
- High School:
- Royal HS
2026
Appeared and started 14 games ... Pitched a team high 77.2 innings and recorded a team high 40 strikeouts ... Pitched first complete game for UCR since 2022 in a 10-4 win over Cal Poly (3/28) ... Earned first win of the year at UC San Diego (3/21) ... Had season high eight strikeouts against San Francisco (3/14) ... 2nd Team All-Big West Selection
2025
Posted a 4-5 record and had one save ... Made 20 appearances with 12 starts ... Threw 62.2 innings ... Struck out 49 ... First win against Cal Baptist (2/28) ... First save at Cal State Bakersfield (4/5) ... Named Big West Pitcher of the Week (5/5)
2024 (Hawai'i Hilo)
Pitched 36.2 innings and posted a 2.70 ERA ... Had a 3-2 record with 34 srtikeouts ... Posted a season high eight strikeouts in a win over St. Martin's
2023 (Hawai'i Hilo)
Dean's List Freshman year at University of Hawai'i at Hilo ... Made 14 total appearances with three starts on the mound ... Pitched  22.1 innings with a 1-1 record and a 2.82 earned run average ... Earned first win after going 5.0 innings with two earned runs allowed in an 8-5 victory over HPU ... 2022-23 Academic All-PacWest Team
High School
First Team All League ... Second Team All-Ventura County ... All Academic Team ...  Played two seasons of varsity baseball for coach Maye ... 2021 CIF Champion ... Played football at Royal HS ... Played club for Strike One Baseball Academy and Trosky SoCal
Personal
Parents are Jeff and Melina O'Brien ... Favorite teams Miami Dolphins and Miami Marlins ... Favorite movie is Cars ... Chose UCR to play at the highest level possible, while getting an education at a top university system in the world.
Appeared and started 14 games ... Pitched a team high 77.2 innings and recorded a team high 40 strikeouts ... Pitched first complete game for UCR since 2022 in a 10-4 win over Cal Poly (3/28) ... Earned first win of the year at UC San Diego (3/21) ... Had season high eight strikeouts against San Francisco (3/14) ... 2nd Team All-Big West Selection
2025
Posted a 4-5 record and had one save ... Made 20 appearances with 12 starts ... Threw 62.2 innings ... Struck out 49 ... First win against Cal Baptist (2/28) ... First save at Cal State Bakersfield (4/5) ... Named Big West Pitcher of the Week (5/5)
2024 (Hawai'i Hilo)
Pitched 36.2 innings and posted a 2.70 ERA ... Had a 3-2 record with 34 srtikeouts ... Posted a season high eight strikeouts in a win over St. Martin's
2023 (Hawai'i Hilo)
Dean's List Freshman year at University of Hawai'i at Hilo ... Made 14 total appearances with three starts on the mound ... Pitched  22.1 innings with a 1-1 record and a 2.82 earned run average ... Earned first win after going 5.0 innings with two earned runs allowed in an 8-5 victory over HPU ... 2022-23 Academic All-PacWest Team
High School
First Team All League ... Second Team All-Ventura County ... All Academic Team ...  Played two seasons of varsity baseball for coach Maye ... 2021 CIF Champion ... Played football at Royal HS ... Played club for Strike One Baseball Academy and Trosky SoCal
Personal
Parents are Jeff and Melina O'Brien ... Favorite teams Miami Dolphins and Miami Marlins ... Favorite movie is Cars ... Chose UCR to play at the highest level possible, while getting an education at a top university system in the world.
Thursday, May 21
Monday, May 04
Friday, May 01
Tuesday, March 24
