1. Kevin Alvarez, OF
Level: Single-A
The Astros signed Alvarez for $2 million in January 2025, one of the largest international bonuses the organization has ever awarded. Alvarez was widely regarded as one of the top pure hitters in the 2025 international signing class and has quickly lived up to that reputation. The left-handed hitter possesses elite bat-to-ball skills with an advanced approach and solid raw power, with the potential for more as he physically matures. He also stands out as a well-rounded athlete with a strong arm and solid defensive instincts. While Alvarez isn’t a burner on the bases, he is a solid runner once underway. Alvarez shown an advanced approach this season while adding more impact at the plate, collecting 23 doubles and nine home runs. His combination of contact skills, plate discipline and developing power gives him one of the highest offensive ceilings in the Astros’ system.
2. Xavier Neyens, INF
Level: High-A
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 signing bonus since Alex Bregman received $5.9 million in 2015. A left-handed hitter out of Mount Vernon High School in Washington, Neyens entered pro ball with some of the best raw power in his draft class. Neyens has a big frame with room to continue adding strength and already possesses plus-plus power while producing elite exit velocities. He combines that power with an extremely patient approach at the plate, rarely chasing and showing a willingness to work counts and take his walks. While there will be some swing-and-miss with his offensive profile, his combination of power and on-base ability gives him tremendous upside at the plate. He got off to a strong start with Single-A Fayetteville this season, posting an OPS near .900 with 14 home runs before earning a promotion to High-A Asheville. Still just 19 years old, Neyens possesses one of the highest offensive ceilings in the Astros’ system. Read more here.
3. Logan Hughes, OF
Level: Single-A
Hughes was selected by the Astros with the 17th overall pick in the 2026 MLB Draft following an extremely productive career at Texas Tech. The left-handed hitter put together a monster junior season, batting .375 with 18 home runs while drawing 50 walks compared to just 33 strikeouts over 55 games. Hughes has an advanced approach at the plate with the ability to make consistent contact without sacrificing power. He possesses plus raw power and projects to hit for above-average power in games, giving him the potential to develop into an impact offensive player. While Hughes may not provide a ton of defensive value, his bat is his calling card and should be what carries him through the system. His combination of contact ability, plate discipline and power gives him one of the highest offensive ceilings in the Astros’ farm system, and his advanced bat could allow him to move quickly through the minor leagues.
4. Jack Radel, RHP
Level: Rookie
Radel was selected by the Astros with the 28th overall pick in the 2026 MLB Draft, becoming the first pitcher taken by Houston in the first round since J.B. Bukauskas in 2017. He is an imposing presence on the mound, listed at 6-foot-5 and 250 pounds. The right-hander features a fastball that reaches 98 mph along with a plus cutter, slider and above-average command. He also generates elite extension, allowing his stuff to play up even more. In 2026 at Notre Dame, Radel posted a 3.29 ERA while striking out 116 batters over 87.2 innings. Radel’s combination of size, velocity, command and a deep arsenal gives him legitimate starting pitcher upside. Following the draft, he immediately becomes one of the highest-upside pitching prospects in the Astros’ farm system.
5. Albert Fermin, SS
Level: Rookie
Fermin was the Astros top international signing in January of this year, signing for $2.3 million. Fermin already produces consistent hard contact, and with his physical upside, there’s reason to believe he could grow into considerable in-game power as he matures. He is a switch hitter who has been really good from the left side, but still developing the right-handed swing. Defensively, Fermin is athletic enough to begin his professional career at shortstop, but evaluators believe his long-term home may ultimately be at third base. With his strong arm and solid instincts, he projects well at either position on the left side of the infield, giving the Astros a versatile and high-upside addition to their international class. He’s been great in the DSL this season batting .349 with 9 doubles, 5 home runs, 20 stolen bases and more walks than strikeouts.
6. Bryce Mayer, RHP
Level: Triple-A
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. Mayer has been really good in 2026 posting a 2.61 ERA with 100 K in 69.0 innings in Double-A. Read more here.
7. Ethan Frey, OF
Level: High-A
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. Following the draft he hit .330 with 5 doubles, 3 home runs, 17 runs batted in and an impressive 20 walks to 25 strikeouts. He got off to a slow start in 2026 but then got it going before landing on the IL. Since coming back, he’s swinging it well.
8. Ethan Pecko, RHP
Level: Triple-A
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 finished the 2025 season in Triple-A and is back there now after an early injury. He has 68 K in 70.2 innings in Triple-A this season. Read more on Pecko here.
9. Jason Schiavone, C
Level: Double-A
The Astros selected Schiavone in the 11th round of the 2024 draft. After a down year in Fayetteville, he went on an absolute tear in Asheville batting .289 with 17 home runs and a 1.218 OPS. He also earned a promotion to Double-A where the numbers are down a bit, but still solid with a .770 OPS. Schiavone is an intersting hitter as he provides elite power, good plate discipline, but also some swing and miss. On top of the 23 home runs, he had drawn 80 walks in 91 games, though he has 126 strikeouts. The power is legit though and he has posted some elite exit velocities. Defensively, he is athletic behind the plate with improving receiving and a strong arm. He’s also thrown out 47% of base stealers in Double-A.
10. Wes Mendes, LHP
Level: Rookie
Mendes was selected by the Astros in the second round of the 2026 MLB Draft following a standout career at Florida State. The left-hander posted a 2.81 ERA with 125 strikeouts over 93 innings during his junior season. His best pitch is his changeup, which some evaluators considered the best in the 2026 draft class. Mendes also features a slider and cutter as part of a deep five-pitch mix. His fastball averages around 92 mph but has touched 96, and he significantly improved his strike-throwing and overall command as a junior. Mendes doesn’t have overpowering velocity, but his combination of a deep arsenal, plus changeup and strong command gives him the tools to succeed as a starter. He is one of the more polished pitching prospects in the Astros’ system and has a chance to move quickly through the minor leagues.