The 2025 Big West Conference baseball tournament determined the conference champion for the Big West Conference at the end of the 2025 college baseball season. The top five teams met at Cal State Fullerton's on campus venue, Goodwin Field from May 21 through 24. This was the first Big West Conference postseason championship event since the 1998 season, ending a 27-year hiatus. The Cal Poly Mustangs won the championship, defeating UC Irvine in back-to-back elimination games, receiving the conference's automatic bid. UC Irvine also received an at-large bid. Both teams went 2-2 in the tournament, losing in their respective regional final.
Seeding and format The top five finishers from the regular season were seeded one through five based on conference winning percentage. Seeds No. 1, No. 2, and No. 3 received a bye into the double elimination bracket, while No. 4 and No. 5 battled in a single elimination the first round. SeedSchoolRecordTiebreaker1UC Irvine24-62Cal Poly23-73Cal State Fullerton19-114Hawai'i16-142-1 vs. UC Santa Barbara5 UC Santa Barbara16-141-2 vs. Hawai'iDNQUC San Diego15-152-1 vs. Long Beach StateDNQLong Beach State15-151-2 vs. UC San DiegoDNQUC Davis13-17DNQCSUN10-20DNQCSU Bakersfield9-21DNQUC Riverside5-25
Bracket
Schedule GameTime*Matchup#ScoreNotesReference Wednesday, May 21 1 12:00 pm No. 5 UC Santa Barbara vs No. 4 Hawaii 2–6 UC Santa Barbara Eliminated Thursday, May 22 2 3:00 pm No. 4 Hawaii vs No. 1 UC Irvine 5–7 3 7:00 pm No. 3 Cal State Fullerton vs No. 2 Cal Poly 2–7 Friday, May 23 4 3:00 pm No. 2 Cal Poly vs No. 1 UC Irvine 3–15 (7) 5 7:00 pm No. 4 Hawai'i vs No. 3 Cal State Fullerton 16–4 Cal State Fullerton Eliminated Saturday, May 24 6 3:00 pm No. 4 Hawai'i vs No. 2 Cal Poly 1-2 Hawai'i Eliminated 7 7:00 pm No. 2 Cal Poly vs No. 1 UC Irvine 15-5 (8) Sunday, May 25 8 3:00 pm No. 2 Cal Poly vs. No. 1 UC Irvine 6-4 UC Irvine eliminated
All-Tournament Team The following players were members of the Big West Conference All-Tournament Team. Position Player School P Chris Downs Cal Poly Trevor Hansen UC Irvine Isaiah Magdaleno Hawai'iGriffin Naess Cal Poly C Blake Penso UC Irvine 1B Ben Zeigler-Namoa Hawai'i 2B Ryan Fenn (MVP) Cal Poly 3B Zach Daudet Cal Poly SS Maddox Latta Cal State Fullerton OF Matthew Bardowell Cal State Fullerton LeTrey McCollum UC Santa Barbara Jacob McCombs UC Irvine
References