The left-hander is the first All-American honoree for the Hawkeyes since  Brody Brecht and Keaton Anthony earned All-America recognition in 2023. Obermueller also was named to the All-Big Ten First Team in May.

Obermueller earned third-team All-America honors after going 5-3 with a 3.02 ERA in 15 starts. He posted five quality starts and fanned 117 batters over 83.1 innings. His 117 punchouts ranks second all-time in program history for strikeouts in a season The Iowa City, Iowa, native leads the Big Ten and ranks 18th in the nation in strikeouts per nine innings (12.83).

The left-hander posted three double-digit strikeout performances, including a seven-inning complete game against Northwestern on April 4. In the 12-1 win over the Wildcats, Obermueller struck out a career-high 12 batters while allowing one hit – a single – one walk and one unearned run.

The Hawkeyes closed the 2025 season with a 33-22-1 overall record. Iowa finished third in the Big Ten regular season standings and made its 10th straight Big Ten Tournament appearance.