Brennan Seiber

Position:
Right-Handed Pitcher
B/T:
R/R
Height:
6-6
Weight:
236
Class:
Senior
Hometown:
Newport Beach, Calif.
High School:
Mater Dei

Vanderbilt
• Posted a 9-3 record and a 4.40 ERA over three seasons (2024-26), striking out 93 batters and collecting six saves across 58 appearances totaling 108 1/3 innings, while holding opposing hitters to a .229 average.
• Went 5-2 with a 4.93 ERA over 19 appearances and one start as a junior in 2026, striking out 28 batters and picking up a save over 42 innings while holding opposing hitters to a .262 average.
• Worked 2 2/3 scoreless relief innings against Tennessee (March 27, 2026), allowing just a hit and a walk while inducing a rally-killing double play.
• Threw five-plus innings of relief in Game 3 of the LSU series in 2026, striking out four.
• Went 1-1 with a 2.28 ERA over 16 appearances and two starts as a sophomore in 2025, striking out 28 batters over 23 2/3 innings while holding opposing hitters to a .169 average.
• Struck out six over three scoreless innings in a start against Air Force (Feb. 18, 2025).
• Went 3-0 with a 5.06 ERA as a freshman in 2024, leading all Vanderbilt pitchers with 23 appearances and tying for the team lead with five saves over 42.2 innings.
• Struck out 37 batters and held opposing hitters to a .226 average in 2024.
• Named to the NCBWA Stopper of the Year Midseason Watch List (April 24, 2024).
• Earned the win in his first collegiate start at Lipscomb (April 16, 2024), tossing 3 innings with five strikeouts and no earned runs.
• Threw two perfect innings to earn a save against Houston at Minute Maid Park (March 2, 2024).
• Earned a three-inning save in his collegiate debut against FAU (Feb. 18, 2024), retiring all nine batters he faced on 27 pitches.
• Competed for the Team USA Collegiate National Team after his freshman season.

Mater Dei High School
• Posted a 5-1 record and 2.05 ERA over 41.1 innings as a senior.
• Served as team captain in 2023.
• Helped lead Mater Dei to its first playoff appearance and victory in seven years in 2023.
• Four-time Perfect Game Preseason All-America honoree (California).
• Ranked as the No. 53 right-handed pitcher in California.

Personal
• Born Oct. 12, 2004.
• Son of Joanne and Chris Seiber.
• Mother, Joanne, was a two-time All-American and two-time conference player of the year as a volleyball player at Pomona College. She is in the Pomona Sports Hall of Fame. She also served as an assistant coach at Baylor for three years.
• Father, Chris, played volleyball and tennis at Pomona College.
• Has a sister, Stephanie.