Alonso pitched this past year with Troy, mostly out of the bullpen. He threw 49 1/3 innings and struck out 60 hitters over that time. He also had a high walk rate, walking 32 in that time period as well. He pitched at Middle Tennessee State University his freshman year before pitching at Columbia State Community College in 2025.

He has a mid-90s fastball that has touched 96 mph and an above-average curveball that sits 83-84. He was part of a pitching staff that helped Troy make a College World Series appearance at the Division I level for the first time in program history.