1. Xavier Neyens, INF
Level: Rookie DOB: 10/29/06
Neyens was selected by the Astros in the first round of the 2025 MLB Draft and signed for $4.12 million, the organization’s largest bonus since Alex Bregman received $5.9 million in 2015. A left-handed hitter out of Mount Vernon High School in Washington, Neyens boasts some of the most impressive raw power in the 2025 draft class. While he has a strong arm suited for a corner infield or outfield spot, it’s his powerful bat and advanced hitting ability that made him a top pick. Standing 6’4″ and weighing 210 pounds, Neyens projects as a formidable middle-of-the-order presence. He’s the first high school position played selected by the Astros in the first round since Tucker in 2015.
2. Ethan Frey, OF
Level: Single-A DOB: 03/15/04
Frey was selected by the Astros in the third round of the 2025 MLB Draft, with the team going over slot to secure his signing. The former LSU standout enjoyed a breakout junior year, batting .331 with 15 doubles, 13 home runs, and 50 RBIs across 62 games. Standing 6’6″, Frey combines impressive size with surprising athleticism and speed. He offers above-average power and has the tools to play center field, though he could eventually settle into a corner outfield role or first base as some scouts project him there. The 21-year-old hit .330 with 5 doubles, 3 home runs, 17 runs batted in and an impressive 20 walks to 25 strikeouts. This worked out to an impressive 166 wRC+. He also posted a ridiculous 6.2% swinging strike rate and a 83.4% contact rate in his pro debut.
3. Kevin Alvarez, OF
Level: Rookie DOB: 01/13/08
The Astros signed Alvarez this past winter for $2 million, one of the highest international bonuses the organization has ever awarded. Just 17 years old, Alvarez was widely regarded as one of the top pure hitters in the 2025 international signing class. A left-handed bat with an advanced approach, he projects for above-average power and stands out as a well-rounded athlete with a strong arm and solid defensive instincts. According to Francys Romero, evaluators have compared his physicality and skill set at this age to a young Kyle Tucker or Paul O’Neill. In 47 games in 2025, the 17-year-old hit .300 with 12 doubles, 3 triples, 2 home runs, 33 runs batted in and 11 stolen bases. This also included an impressive 12.0% walk rate and insane 9.9% strikeout rate. He was also named as a DSL All-Star.
4. Brice Matthews, SS
Level: Triple-A DOB: 03/16/02
Matthews entered the 2023 draft as one of the most athletic prospects in the Big Ten. The 21-year-old broke out during his junior season at Nebraska, slashing .359/.481/.723 with 20 home runs and 20 stolen bases. Known for his quick swing and impressive exit velocities, Matthews projects for 20–25 home run power, with strong pull-side pop. While he’s seen time across the infield, the Astros appear committed to developing him at second base. There is some swing-and-miss in his game, but those concerns are lessened due to his potential. Matthews backed up the scouting reports in 2025, hitting .283 with 10 home runs and 25 stolen bases over 73 games at Triple-A, earning a call-up to Houston. Read more on Matthews here.
5. Walker Janek, C
Level: High-A DOB: 09/24/02
Janek was seen as the best defensive catcher in the 2024 draft, showing up a plus arm and a quick release. But he also made huge strides with the bat during college too. The 21-year-old has above average bat speed and the ability to produce 20+ homers at the major league level. He hit .364 with 17 homers, 58 runs batted in and 13 stolen bases in 58 games in 2024 for the Bearkats. His raw power has improved and he has chance to be a gold glove type at catcher while hitting for average and power. In 2025 the 22-year-old hit .263 with 21 doubles, 2 triples and 12 home runs over 92 games for High-A Asheville. He also added a surprising 30 stolen bases. Even more important though, he threw out 31% of base stealers, a really strong number for a catcher.
6. Ethan Pecko, RHP
Level: Triple-A DOB: 08/25/02
Pecko was selected by the Astros in the sixth round of the 2023 draft. Despite logging just 59.2 innings in college, the organization saw potential and so far, they’ve been proven right. Pecko had a breakout 2024 season where he posted a 3.47 ERA across three levels. In total, Pecko tallied 125 strikeouts over 96 innings, earning the title of Astros Minor League Pitcher of the Year in 2024. He features a mid-90s fastball and complements it with a deep arsenal that includes a slider, cutter, curveball, and changeup. After starting the 2025 season on the injured list, Pecko returned to form, posting a 1.75 ERA in July. Pecko had some injuries early in 2025 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. Read more on Pecko here.
7. Joseph Sullivan, OF
Level: Double-A DOB: 07/01/02
Sullivan was the Astros 7th round pick in 2024 after a solid college career at South Alabama. The outfielder was a mid round selection but came with a ton of upside. He is a great athlete with plus speed and the chance to stick in center field. Sullivan grades well on swing decisions and has good raw power that he has been able to prove in games this season. He has a great makeup and has an edge to him in the weight room and on the field. He started the year in High-A and had a .872 OPS with 15 HR, 34 SB earning him a promotion to Double-A. The promotion to Double-A was a little tougher for him, but he still finished with 17 home runs, 42 stolen bases and a .798 OPS over 106 games in his first full season. He also led the Astros system in walks and stolen bases. Read more here.
8. Bryce Mayer, RHP
Level: Double-A DOB: 07/07/04
Mayer was selected by the Astros in the 16th round of the 2024 draft and has quickly emerged as one of the biggest steals of the class. He began the season in Fayetteville, striking out 30 batters over 17.1 innings, which earned him a promotion to High-A. In Asheville, the right-hander continued to impress, posting a 2.85 ERA with 45 strikeouts across 41 innings. He was later bumped up to Double-A, where he’s held his own striking out 37 over in 29 innings. Mayer features a mid-90s fastball that plays up thanks to above-average vertical movement, paired with a strong curveball and a quality slider. He was also named the Astros minor league pitcher of the year for 2025, following some other top performers like Hunter Brown, Spencer Arrighetti and Ethan Pecko.
9. A.J. Blubaugh, RHP
Level: Triple-A DOB: 07/04/00
Blubaugh was a 7th round pick back in the 2022 draft out of the University of Wisconsin-Milwaukee. The Astros aggressively moved him up the ranks as they found another pitching diamond in the draft. In 2024, he had a big year 3.71 ERA with 133 K in 128.2 innings as he made his way to Triple-A. Blubaugh was up and down a bit in 2025 but when he got a chance with the Astros, he showed off posting a 1.69 ERA with 35 strikeouts in 32 innings. Blubaugh has a mid to high 90s fastball and a good changeup and sweeper. The 2025 season showed that Blubaugh belongs with the big league club and should get some good long looks this season. Read more on his 2025 season here.
10. Miguel Ullola, RHP
Level: Triple-A DOB: 06/19/02
Ullola is another pitcher in the long line of international arms developed by the Astros. The 23-year-old features a plus fastball that sits mid-90s and generates a ton of swings and missed. While he has some command issues, he has overpowered the hitters with the fastball/slider combination. Ullola appears to have the stuff to be an elite bullpen arm, though the Astros have committed to keeping him a starter for now. The fastball and slider are his two best pitches, but he does throw a curveball as well. Ullola had a big 2024 season and followed that up with some strong numbers in Triple-A in 2025 striking out 131 batters over 113.2 innings.