Karsten Sweum is Gonzaga’s ace-level lefty who can miss bats in bunches
In the 2026 season, Sweum has been one of Gonzaga’s most impactful arms, posting 8 wins and 110 strikeouts across 78.2 innings, with a 4.69 ERA and 1.33 WHIP, while also throwing a no-hitter and earning national recognition as co-pitcher of the week. His calling card is swing-and-miss stuff and poise in big spots—he can overpower lineups with a deep mix and has shown he can work efficiently when locked in. If you need a rugged, high-upside left-hander with real Friday-night energy, he’s the kind of guy you care about immediately.
