Brandon Eisert

Brandon Eisert (born January 19, 1998, in Portland, Oregon) is a left-handed pitcher whose primary role has been as a reliever. He attended Aloha High School in Oregon and played college baseball at Oregon State. Eisert was selected in the 18th round (pick 10) of the 2019 MLB Draft by the Toronto Blue Jays. Eisert made his MLB debut on June 17, 2024. In his 2024 regular-season time with Toronto, he worked 6.2 innings across three relief appearances, posting a 4.05 ERA with a 1.35 WHIP and a 2.7 K/9. In 2025, he pitched in the majors for the Chicago White Sox, appearing in 72 games (three starts) and logging 69.2 innings with a 4.392 ERA and 1.435 WHIP. His underlying indicators included a 4.54 FIP, 4.05 xFIP, and 9.56 K/9, with 12 home runs allowed. His pitch mix in that span featured a four-seam fastball averaging 89.7 mph, a changeup around 83.6 mph, and a slider around 85.1 mph. In the 2026 regular season (through the provided split totals), Eisert recorded 21.2 innings over 21 appearances with a 4.985 ERA, 3.746 FIP, 1.292 WHIP, and 11.631 K/9.