With the season over, we can start to look at the overall performances of the prospects. There were some strong pitching performances this year so to make it a little more fun, I will list the performances and give the reader the opportunity to vote. Below are the best pitching numbers in the Astros system for 2025. Be sure to VOTE!
Alonzo Tredwell
Tredwell was the Astros 2nd round pick back in the 2023 draft and he had a breakout season this year. The right-hander pitched across three different levels and posted a 3.69 ERA with 122 strikeouts over 100 innings. This included a dominant 40 strikeouts over 22.2 innings in Double-A to end the season.
2025 Stats: 26 G, 3.69 ERA, 100.0 IP, 85 H, 41 ER, 45 BB, 122 K, 11.0 K/9
Bryce Mayer
Mayer, a 16th round pick in last year’s draft and looks to be another diamond for the Astros. The right-hander started in Single-A and struck out 30 over 17.2 innings earning a promotion to High-A. In Asheville he posted a 2.85 ERA with 45 K in 41 innings. He finished the season in Double-A striking out 37 over 29 innings. He was the Astros minor league pitcher of the year.
2025 Stats: 21 G, 4.11 ERA, 87.2 IP, 76 H, 40 ER, 27 BB, 112 K, 11.5 K/9
Miguel Ullola
Ullola started the season well and then hit a rough patch but turned it around late. In his first full season in Triple-A, Ullola posted a 3.88 ERA with 131 strikeouts over 113.2 innings. He also allowed just 75 hits, good for a .186 batting average against. When he cuts down on the walks, he is dominant.
2025 Stats: 28 G, 3.88 ERA, 113.2 IP, 75 H, 49 ER, 78 BB, 131 K, 10.4 K/9
Ethan Pecko
Pecko had some injuries early in the year but after getting healthy, the 2024 minor league pitcher of the year got back to his normal self. He had a 4.40 ERA in Double-A but that included a 1.75 ERA over his final six outings in Double-A. He got a promotion to Triple-A where he finished with a 3.09 ERA and 48 strikeouts in 35 innings. He should be in Houston in 2026.
2025 Stats: 20 G, 3.83 ERA, 80.0 IP, 73 H, 34 ER, 27 BB, 95 K, 10.7 K/9
Trey Dombroski
After a tough season in 2024 for Dombroski, he turned things around this year. The left-hander posted a 3.61 ERA with 116 strikeouts over 112.1 innings. He allowed just 91 hits in Double-A good for a 7.3 H/9, down from 11.1 H/9 last year. He made two starts in Triple-A too and should start there next season.
2025 Stats: 28 G, 3.95 ERA, 120.2 IP, 99 H, 53 ER, 55 BB, 122 K, 9.1 K/9
Also be sure to follow on X, @AstrosFuture, follow me on Instagram, @AstrosFuture and like my Facebook page, facebook.com/AstrosFuture.
