2025 Baseball Roster
Roster
Brassfield, Mason

Jersey Number 23
Mason Brassfield
- Position:
- LHP
- Class:
- Freshman
- Height:
- 6-4
- Weight:
- 190
- Hometown:
- Bakersfield, Calif.
- High School:
- Bakersfield Christian HS
Bio
Career Honors
• 2025 Second-team Freshman All-American (Perfect Game)
• 2025 Honorable Mention All-Big 12
• 2025 Big 12 All-Freshman Team
2025 (Freshman)
Started seven games as part of 18 appearances on the year... posted an ERA of 4.09 on the year and boasted a 1.45 ERA as a reliever... ranked third on the team with 68 strikeouts in 61 2/3 innings of work... team was 12-6 in games he pitched and 4-3 in games he started... threw multiple innings in seven of 11 relief appearances... held opponents scoreless in five of those appearances... stranded six of nine inherited runners... made collegiate debut on Feb. 15 at San Diego... surrendered a run on two hits in 2/3 of an inning... retired four of five batters faced in series finale at San Diego (Feb. 17) to earn first career win... tossed three scoreless innings with four strikeouts in first career start against Tarleton State (Feb. 25)... allowed a run on three hits and struck out three in three relief innings against Southern Miss (March 1)... threw 6 1/3 scoreless relief innings with a career-high seven strikeouts to improve to 2-0 on the year against Fresno State (March 9)... suffered first loss after giving up six runs in a start against Arizona State (March 15)... bounced back with 1 2/3 scoreless in a relief appearance at Dallas Baptist (March 18)... allowed an unearned run on five hits, walked two and struck out two in 3 2/3 innings at Texas Tech (March 23)... worked around three walks to throw 1 2/3 scoreless at Houston (March 30)... was the winning pitcher after striking out six and allowing four runs (one earned) on four hits in 3 1/3 relief innings against BYU (April 3)... improved to 4-1 on the year with five scoreless against Kansas (April 13)... matched career-high with seven strikeouts in the outing... allowed a run on three hits, walked one and struck out four in 4 2/3 innings at UCF (April 19)... struck out six and allowed two runs in six relief innings against Baylor (April 27)... moved to the starting rotation May 4 at Arizona... gave up three runs on three hits, walked three and struck out five in 5 1/3 innings... allowed four runs on four hits, walked three and struck out five in 4 1/3 innings against Cincinnati (May 11)... fanned six and gave up four runs over 6 2/3 innings at Utah (May 17)... fanned five and allowed a run over three innings against Kansas (May 23) in the Big 12 Tournament... allowed four runs in an inning of work at Oregon State in the NCAA Corvallis Regional (May 31).
High School
Decorated player at Bakersfield Christian High School... ranked by Perfect Game as the No. 2 left-handed pitcher and the No. 7 overall player in the state of California... tabbed the No. 9 left-handed pitcher nationally and the No. 54 national player by Perfect Game... Baseball America tabbed him as the No. 198 draft prospect... attended the 2024 MLB Draft Combine... named a high school All-American as a senior by NHSBCA, Perfect Game, MaxPreps and MLB... tabbed the 2024 NCSAA Large School National Player of the Year... two-time All-Area Varsity Pitcher of the Year... earned first-team all-area as a sophomore... ranked fifth in the nation with 145 strikeouts as a junior and seventh with 156 strikeouts as a senior... member of the 2022 USA Baseball 18U National Team... participated in numerous Perfect Game tournaments... named the Dick's Sporting Goods Pitcher of the Game in the 2023 Perfect Game All-American game... racked up 409 strikeouts in 201 innings during high school career... posted a 0.66 ERA as a senior... two-time area code games participant... played in the USA/MLB States Play game as well as the USA Prospects Development Pipeline.
Personal
Parents are Melanie and Matt... has one sibling, Miller.
• 2025 Second-team Freshman All-American (Perfect Game)
• 2025 Honorable Mention All-Big 12
• 2025 Big 12 All-Freshman Team
2025 (Freshman)
Started seven games as part of 18 appearances on the year... posted an ERA of 4.09 on the year and boasted a 1.45 ERA as a reliever... ranked third on the team with 68 strikeouts in 61 2/3 innings of work... team was 12-6 in games he pitched and 4-3 in games he started... threw multiple innings in seven of 11 relief appearances... held opponents scoreless in five of those appearances... stranded six of nine inherited runners... made collegiate debut on Feb. 15 at San Diego... surrendered a run on two hits in 2/3 of an inning... retired four of five batters faced in series finale at San Diego (Feb. 17) to earn first career win... tossed three scoreless innings with four strikeouts in first career start against Tarleton State (Feb. 25)... allowed a run on three hits and struck out three in three relief innings against Southern Miss (March 1)... threw 6 1/3 scoreless relief innings with a career-high seven strikeouts to improve to 2-0 on the year against Fresno State (March 9)... suffered first loss after giving up six runs in a start against Arizona State (March 15)... bounced back with 1 2/3 scoreless in a relief appearance at Dallas Baptist (March 18)... allowed an unearned run on five hits, walked two and struck out two in 3 2/3 innings at Texas Tech (March 23)... worked around three walks to throw 1 2/3 scoreless at Houston (March 30)... was the winning pitcher after striking out six and allowing four runs (one earned) on four hits in 3 1/3 relief innings against BYU (April 3)... improved to 4-1 on the year with five scoreless against Kansas (April 13)... matched career-high with seven strikeouts in the outing... allowed a run on three hits, walked one and struck out four in 4 2/3 innings at UCF (April 19)... struck out six and allowed two runs in six relief innings against Baylor (April 27)... moved to the starting rotation May 4 at Arizona... gave up three runs on three hits, walked three and struck out five in 5 1/3 innings... allowed four runs on four hits, walked three and struck out five in 4 1/3 innings against Cincinnati (May 11)... fanned six and gave up four runs over 6 2/3 innings at Utah (May 17)... fanned five and allowed a run over three innings against Kansas (May 23) in the Big 12 Tournament... allowed four runs in an inning of work at Oregon State in the NCAA Corvallis Regional (May 31).
High School
Decorated player at Bakersfield Christian High School... ranked by Perfect Game as the No. 2 left-handed pitcher and the No. 7 overall player in the state of California... tabbed the No. 9 left-handed pitcher nationally and the No. 54 national player by Perfect Game... Baseball America tabbed him as the No. 198 draft prospect... attended the 2024 MLB Draft Combine... named a high school All-American as a senior by NHSBCA, Perfect Game, MaxPreps and MLB... tabbed the 2024 NCSAA Large School National Player of the Year... two-time All-Area Varsity Pitcher of the Year... earned first-team all-area as a sophomore... ranked fifth in the nation with 145 strikeouts as a junior and seventh with 156 strikeouts as a senior... member of the 2022 USA Baseball 18U National Team... participated in numerous Perfect Game tournaments... named the Dick's Sporting Goods Pitcher of the Game in the 2023 Perfect Game All-American game... racked up 409 strikeouts in 201 innings during high school career... posted a 0.66 ERA as a senior... two-time area code games participant... played in the USA/MLB States Play game as well as the USA Prospects Development Pipeline.
Personal
Parents are Melanie and Matt... has one sibling, Miller.
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