With the Astros minor league season is over we will review each position in the minor league system during the 2025 season. This week we will look at the starting pitching position.
Previous Position Reviews:
TOP PERFORMERS
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
THE REST OF THE PACK
Joan Ogando
Ogando pitched the full season for the Woodpeckers and had some ups and downs. The 21-year-old had a 4.07 ERA overall, but had some really good months posting a 3.24 ERA in April and a 3.18 ERA in June. Overall he finished with 113 strikeouts in 94.2 innings, though he did walk 69.
2025 Stats: 25 G, 4.09 ERA, 94.2 IP, 55 H, 43 ER, 69 BB, 13 K, 10.7 K/9
Anthony Cruz
Cruz is an undersized right-hander who put together a solid season in 2025. He started the year in Fayetteville and had a 3.75 ERA with 84 strikeouts over 84 innings. He earned a promotion to High-A where he had a 5.12 ERA, though he also had 20 strikeouts in 19.1 innings. Overall he had a 4.01 ERA.
2025 Stats: 25 G, 4.01 ERA, 103.1 IP, 87 H, 46 ER, 53 BB, 104 K, 9.1 K/9
Jose Fleury
Fleury has been on the radar as a possible top prospect for a couple of seasons now. He started out the season on fire posting a 0.82 ERA with 25 K in 22 innings in April. He missed some time in May but came back in June and was eventually promoted to Triple-A where he had a 6.95 ERA over 45.1 innings.
2025 Stats: 23 G, 4.55 ERA, 85.0 IP, 74 H, 43 ER, 35 BB, 78 K, 8.3 K/9
Jackson Nezuh
Nezuh had a monster first year in the system in 2024 but struggled some in Double-A in 2025. He finished the season strong though posting a 1.67 ERA over his final six games. He would end up finishing the season with a 4.34 ERA and 76 strikeouts over 76.2 innings between Double-A and a couple outings in the FCL.
2025 Stats: 20 G, 4.34 ERA, 120.2 IP, 99 H, 53 ER, 55 BB, 122 K, 9.1 K/9
2026 OUTLOOK/CONCLUSION
Pitching is always tricky. As it stands, the Astros will be leaning on Hunter Brown, Spencer Arrighetti, Mike Burrows, Cristian Javier and then the 5th starter spot is probably up for grabs. The Astros have some strong arms in Ullola, Pecko and Mayer. Then some other strong options like Tredwell, Forcucci (hasn’t pitched yet) and Dombroski. As we have seen in previous years, we know the Astros will need well more than five starters so plenty of chances for these prospects to shine in 2026.
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