Houston Astros Top 38 Prospects

Below is an analysis of the prospects in the farm system of the Houston Astros. Scouting reports were compiled with information provided by industry sources as well as our own observations. This is the third year we’re delineating between two anticipated relief roles, the abbreviations for which you’ll see in the “position” column below: MIRP for multi-inning relief pitchers, and SIRP for single-inning relief pitchers. The ETAs listed generally correspond to the year a player has to be added to the 40-man roster to avoid being made eligible for the Rule 5 draft. Manual adjustments are made where they seem appropriate, but we use that as a rule of thumb.
A quick overview of what FV (Future Value) means can be found here. A much deeper overview can be found here.
All of the ranked prospects below also appear on The Board, a resource the site offers featuring sortable scouting information for every organization. It has more details (and updated TrackMan data from various sources) than this article and integrates every team’s list so readers can compare prospects across farm systems. It can be found here.
| Rk | Name | Age | Highest Level | Position | ETA | FV |
|---|---|---|---|---|---|---|
| 1 | Hunter Brown | 24.8 | MLB | SP | 2023 | 55 |
| 2 | Yainer Diaz | 24.7 | MLB | C | 2023 | 50 |
| 3 | Drew Gilbert | 22.7 | AA | CF | 2024 | 50 |
| 4 | Korey Lee | 24.9 | MLB | C | 2023 | 50 |
| 5 | Ryan Clifford | 19.9 | A+ | RF | 2026 | 45 |
| 6 | Luis Baez | 19.4 | R | RF | 2027 | 40+ |
| 7 | Camilo Diaz | 17.8 | R | 3B | 2029 | 40+ |
| 8 | Joey Loperfido | 24.1 | AA | CF | 2025 | 40+ |
| 9 | Trey Dombroski | 22.2 | A | SP | 2025 | 40+ |
| 10 | Kenedy Corona | 23.2 | AA | CF | 2024 | 40+ |
| 11 | Alberto Hernandez | 18.8 | R | SS | 2027 | 40+ |
| 12 | J.P. France | 28.2 | MLB | SP | 2023 | 40 |
| 13 | Jacob Melton | 22.8 | A+ | CF | 2027 | 40 |
| 14 | Kenni Gomez | 18.1 | R | CF | 2027 | 40 |
| 15 | Colton Gordon | 24.5 | AA | SP | 2025 | 40 |
| 16 | Spencer Arrighetti | 23.4 | AA | SIRP | 2025 | 40 |
| 17 | Michael Knorr | 23.1 | A+ | SP | 2026 | 40 |
| 18 | Corey Julks | 27.3 | MLB | RF | 2023 | 40 |
| 19 | Colin Barber | 22.5 | AA | RF | 2025 | 40 |
| 20 | Esmil Valencia | 17.6 | R | LF | 2029 | 40 |
| 21 | Grae Kessinger | 25.8 | MLB | SS | 2023 | 40 |
| 22 | Pedro León | 25.0 | AAA | CF | 2024 | 40 |
| 23 | César Salazar | 27.2 | MLB | C | 2023 | 40 |
| 24 | Forrest Whitley | 25.7 | AAA | MIRP | 2024 | 40 |
| 25 | Julio Robaina | 22.2 | AA | SP | 2024 | 35+ |
| 26 | Jose Fleury | 21.3 | A | SP | 2026 | 35+ |
| 27 | Andrew Taylor | 21.7 | A | MIRP | 2026 | 35+ |
| 28 | Miguel Palma | 21.4 | A+ | C | 2025 | 35+ |
| 29 | Will Wagner | 24.9 | AA | 3B | 2025 | 35+ |
| 30 | Ronel Blanco | 29.8 | MLB | SIRP | 2023 | 35+ |
| 31 | Justin Dirden | 25.9 | AAA | RF | 2024 | 35+ |
| 32 | Nolan DeVos | 22.8 | A | SIRP | 2026 | 35+ |
| 33 | Zach Dezenzo | 23.1 | AA | 1B | 2025 | 35+ |
| 34 | Zach Daniels | 24.4 | AA | RF | 2024 | 35+ |
| 35 | Alimber Santa | 20.1 | A | SIRP | 2025 | 35+ |
| 36 | Joe Perez | 23.8 | MLB | 3B | 2024 | 35+ |
| 37 | Misael Tamarez | 23.4 | AAA | MIRP | 2024 | 35+ |
| 38 | Jairo Solis | 23.5 | AAA | SIRP | 2023 | 35+ |
Other Prospects of Note
Grouped by type and listed in order of preference within each category.
Young, High-Variance Guys
German Ramirez, SS
Carlos Espinosa, RHP
Waner Luciano, 3B
Tyler Whitaker, 3B/OF
Alejandro Nunez, SS
Ramirez signed for $1.2 million in January. He’s a sleek and agile shortstop who needs to get stronger in order to have a functional swing and viable shortstop arm strength. He’s in the DSL and doesn’t turn 17 until the end of July, so that’s not surprising. Espinosa is an athletic 21-year-old Cuban who is a relatively projectable 6-foot-2. He’s working in the 94-95 mph range and has touched 97 this year. His slider is closer to average and his changeup is way below. Luciano is a thicker rookie-level bat who hit for power in the 2022 DSL. He has reverse physical projection, a good arm, and made a lot of in-zone contact last year. Whitaker was a low-probability power-over-hit high school prospect who is off to a good start repeating Low-A. Nunez is a teenage lefty-hitting shortstop from Mexico who is a skills-over-tools type at the moment. He also made a ton of DSL contact in 2022. Luciano, Espinosa, and Nunez are all on the Complex League roster.
Athletes and Frames
Jordan Brewer, OF/1B
Cristian Gonzalez, SS
Quincy Hamilton, OF
Narbe Cruz, INF
Collin Price, C
Zachary Cole, CF
Tim Borden II, 3B
This entire group looks the part in the uniform. Brewer, now 25, recently got into rehab games after he had a second surgery on his hand; he had hamate surgery last year. A late-bloomer backwards guy from Michigan, it looked like things might be clicking for Brewer in 2021, but he hasn’t played much of the last two years due to injury. Gonzalez had knee surgery and is on the 60-day IL. He’s a fair shortstop with a good baseball frame, above-average bat speed, and zero feel for contact. Hamilton was another older college draft pick in the same year as Loperfido. He’s a slash-and-dash all-fields type who doesn’t have the feel for center field. Cruz is very projectable and has pretty good feel for the barrel, but he isn’t a good defensive infielder. He’s playing all over the infield at Fayetteville and is worth keeping tabs on. Price is a slow-twitch 6-foot-6 catching prospect from Mercer. His receiving has been rough in our looks, but so far he’s hitting okay. Cole, also at Fayetteville, was Houston’s 2022 10th rounder out of Ball State. He’s a power/speed prospect with a 20-grade bat. Borden is a power-over-hit infielder currently hacking away at Asheville.
More Riding Fastball Guys
A.J. Blubaugh, RHP
Parker Mushinski, LHP
Miguel Ullola, RHP
Joey Mancini, RHP
Deylen Miley, RHP
Jaime Melendez, RHP
Cole McDonald, RHP
All of these guys have fastballs that play at the top of the strike zone. Blubaugh, a 2022 seventh rounder from UW Milwaukee, sits 92 mph and fills the zone with a riding fastball. Mushinski is a perfectly fine upper-level depth lefty who mixes four 40/45-grade pitches very evenly, and usually throws strikes. Ullola’s velo has backed up a couple of ticks; he’s sitting closer to 92 than his 2022 mid-90s heat. He’s never really thrown strikes and needs all that velo. Mancini (a 2022 15th rounder from Boston College) and Miley (2021 undrafted out of Bellarmine) each sit 92 with plus rise (Mancini’s is arguably plus-plus). Melendez is a 5-foot-8 human trebuchet with mid-90s heat that isn’t missing as many bats this year. McDonald had a fastball/slider combo and his overhand arm slot creates big depth on the slider. He’s actually among the org’s swinging strike leaders, but scouts don’t think it will hold up.
System Overview
After years of churning out impact pitcher after impact pitcher (including Hunter Brown), there is suddenly a dearth of them here. There isn’t a shortage of interesting dudes, but there are basically no near-ready impact arms aside from Brown. Once other teams started competing for the same underlying characteristics that the Astros coveted, it became harder to find undervalued guys. As much of the rest of the industry has pivoted to caring about release height and fastball angles, even when that means targeting pitchers whose lower slots impart tailing action (but still uphill angle) on their heaters, the Astros have mostly stayed true to their vertical slot pitching prospects, and they are much more common in this system than anyone who looks like Kyle Harrison or Cooper Hjerpe.
Cuba remains a big part of what the Astros do internationally. Any time you hear about Cuban workouts taking place during this part of the signing calendar, you can count on the Astros (and Cardinals, Marlins, White Sox and A’s), who tend to have pool space left for players like this, kicking the tires. Several of the last few years’ Cuban signees in this system look really interesting.
Without much pitching to speak of, the strength of this system is now its physical, toolsy outfielders. For a team that the world believes is obsessed with analytics and only analytics, Houston’s system sure does have a lot of underwear models. Big, fast athletes with power and questionable hit tools are up and down this system. Some of them arrived with those physiques, while others are clearly benefitting from an effective strength program. Both Drew Gilbert and Jacob Melton were impressive college athletes who, in less than a year, look markedly stronger than they did before they signed.
With Dana Brown now running the show, will any of Houston’s approach to scouting change? Remember that Atlanta has DNA from Houston’s front office. Like Houston, the Braves have significantly altered how they do pro scouting, so it’s fair to expect relatively few boots-on-the-ground Astros scouts even as we’re further and further removed from the Luhnow era. Brown was Atlanta’s amateur director, and obviously the Braves have been excellent at amateur scouting, using a more balanced eyeball/data combo that targets arrow-up guys and two-way athletes.
Overall, this system is average; as Brown and Diaz graduate, it falls below. It’s a little imbalanced due to the lack of pitching, but it’s close to the middle of the league in terms of depth.
As an Astros fan, this really isn’t as bad as it could be considering the draft picks that were lost and the years of competing and trading away talent, even with the graduations at the top. Click did an admirable job restocking this system under difficult circumstances and his fingerprints are all over this list. There is ammunition here to make trades over the next couple years, and guys like Brown/Diaz/Gilbert seem primed to fill holes at the ML level and hopefully be part of the next wave of talent. There are a few high probability types peppered lower on the list (some are already contributing at the ML level) but the longer term future will depend in large part on some of the J2 lottery tickets on here it feels like
TINSTAAPP = Forrest Whitley’s middle name.
Whitley had a prototypical pitcher’s frame, sat 94-98, got 2500 RPM on his heater and 3000 RPM on his slider and whose best pitch might have been his changeup, and had both great peripherals and very good results in a small sample in AA at age 20. Let this be a lesson, kids: If it can happen to him, it could happen to anyone.
Alex Reyes similarly had multiple excellent pitches and was a big boy himself. His failure was more health-related, but that’s an issue for every pitching prospect.
It shows that you can’t ever count on pitching prospects — STL was counting on Reyes to carry their rotation and neglected adding any insurance behind him, cobbling rotations together for years with the Scotch tape peeling away this season. In comparison, Houston added aces in Verlander and Cole, even when Whitley was looking like a sure bet to be really good. When he busted out, they still had Verlander and Cole.
Alex Reyes could not throw strikes on his best day. All he ever did was throw hard. His story was very predictable.
PEDS. His development curve was unique.
Hunter Brown looks great, like a #3 already if you follow the logic that a #3 is a 3-win starter, and better if he gets slightly luckier on his HR/FB ratio. It is really hard to force this many groundballs while also striking out this many batters.
To emphasize your point: only 6 qualified starters have both a 50+% GB rate and a 25+% K rate
Pretty good group outside Cabrera (& if he could ever rein in the BB, he’s a pretty interesting young pitcher too)
The list is short enough that you can count guys who have done this over a full season in the last 15ish years manually; most pitchers have to make a choice between striking guys out and inducing ground balls. So when they don’t have to make that choice, it is really striking.
The Astros have had guys kind of like this before–Framber at his best, Lance McCullers Jr. when he was healthy. Luis Castillo is often like this too; so was Francisco Liriano. Clayton Kershaw had a handful of seasons in this vein, although he was so good at everything these sorts of peripherals barely even register. Those are sort of the archetypes.
Last year, Shane McClanahan snuck over the GB% threshold by the smallest of margins. Carlos Carrasco, Aaron Nola, Luis Severino, Jon Lester, Tyson Ross, Felix Hernandez, Jimmy Nelson, Jake Arrieta, Sonny Gray, Stephen Strasburg, Noah Syndergaard, Charlie Morton, and AJ Burnett all had a season or two like that, although I wouldn’t say it was something they regularly did.
In any case, when pitchers do this, they typically always are at least 3-win pitchers, usually more like 4 win pitchers, and several 5+ win, league-ace level seasons. And the list of pitchers is pretty amazing; if you do that even once, you’re extremely likely to have a multi-year run as a playoff-level starter unless they get wrecked by injuries (Severino, Nelson).
All this is to say, Hunter Brown is going to be really, really good.
Long wait but this was great. Thank you!
It is really hard to see how Drew Gilbert could possibly be in the same tier as Korey Lee. Player A is a guy who is tracking like a league average to above average center fielder, and Player B is justifiably comped to a guy with a career 53 wRC+. I know that the bar for offensive production at catcher is low, but it’s not that low.
As an Astros fan this is the most shocking grade for me. I am also pretty pessimistic about Lee but hopefully there is still room for the hit tool to become feasible.
Not only this, it seems like ABS challenge system is coming if not a all out electronic strike zone. The value of framing will at least be minimized to some degree
Player B is an great MLB catcher. Those are valuable even if they never hit. He is valuable to every 40 man roster today. Gillbert is getting his butt handed to him in AA after a 20 game stretch with an inflated BABIP. It is not clear to me what value Gilbert would bring to an MLB team – he is small and has average tools across the board. He will have to be something special with the bat to have a long-term MLB role. Lee is already something special with his defense. I hate the idea of highly valuing defense in a spec, but real C are a thing and the fact that he might do something offensively makes him something. You should appreciate what you have in Lee.
Shocked Spencer Arrighetti is ranked this low. He is doing great in double-A A and wouldn’t surprise me if they move him up to triple A or big league sometime this year.
I think they may have overlooked him, and especially his May. I would put him as a 40+ and maybe a 45.
I am really enjoying the quickness of these comprehensive prospect reports over the last two weeks. Really brought me back into being interested in FG
-1 There are all kinds of things to be interested in on Fangraphs. I look at it most every day, usually in the morning. It’s cool if you like to follow the major league baseball season, as it goes along.
Luis Baez sounds intriguing but am I reading it right that he didn’t sign as an IFA until he was already (or almost) 18? Is there a story there?
The Astros do tend to dive into the older IFA market. Many of their recent international successes are such players even if they tend to be much less hyped and signs for less money
Zach Dezenzo
bless you
How much do the hit grades go up when they know what pitch is coming?
I swear I’ll give this a rest someday. Maybe when everyone’s retired
All the Astros have done since “getting caught cheating” is perform as the best team n MLB.
With the usual caveats (eric/tess more qualified than me talk to better sources etc), I am beyond shocked Gilbert was only given a future 50 fielding grade. He’s imo going to be a top 5 CF defender, worth of a 70. Also think he should be a 55 fv
Yeah, I think he’s a 60 in CF. 70 is a stretch I think. I don’t think he’s elite out there. He should’ve mashed at A+. Let’s see how he does at AA before saying he’s a 55. I don’t think he can impact the ball enough to be more than an average regular.
How would you guys know this? I am genuinely curious.
Drew Gilbert is one of my favorite archetypes for a player–the guy who currently projects to be a league-average defender at a premium defensive position, and a league-average bat. These players are deceptively important.
But what’s particularly fun about him, even more so than your standard Erick Aybar Zone guy, is that he clearly has the tools to do more, but what tools are under debate. You’ve got some people hanging 60’s on his hit, raw power, or fielding, but no one is giving all of those to him at the same time. And also nobody is projecting him to end up a total bust as a hitter like Lewis Brinson. So despite him being a “safe” prospect, you still don’t really know what you’re going to get.
Gonna need to see some more Shay Whitcomb love
just some clarification on Dezenzo.
‘an older, flawed hitter’ and hit tool only 30
what am I missing? he just made 23…just got promoted to AA…hitting .400 combined on both levels…K rate is 22.6%
is he that bad? i know stats don’t tell the whole story but any thoughts on what the stats aren’t telling us about this guy?
i leave it to your insight…i’m still learning this stuff
thx
Some of these evals, like Dezenzo and Arrighetti, are weird. There’s not enough 2023 MILB data to know what’s real, yet it’s a June, and not a January evaluation. If Zack keeps on crushing Corpus (16% K rate, wRC+ of 164 through 50 PAs) he’ll be one of the most impressive college bats from the 2022 draft class and severely underrated. But nobody would have batted an eyelash if this were the write-up three months ago.
What the hell is a Meqtwo?
I’m guessing you haven’t been the parent to any 7 year old boys lately?
That movie came out in 1998. More likely that he’s too young himself
The toolsy outfielders remind me a lot of the Tampa system that produced high power guys with questionable bats. The pitching in the system screams 4/5 and leverage bullpen guys. It seems that this june the organization needs to focus on some IF bats specifically at 1b, 2b,and 3b since Abreu, Altuve and soon Bregman will all be over the age of 30 if not already there.
Melton is interesting. His blurb is pretty insightful. I think that he got buried by the scouting community after a really bad fist month or so. I am not looking at the splits but he has turned things around pretty good. The Ks are not looking bad at all at the moment. The walks are huge. BBs = Ks and when you consider that he does seem to be putting the bat on the ball pretty well. He is running a really low BABIP for a fast guy. He is stealing a lot of bases. This is all to say that I don’t know what he is but he has a lot more potential than most specs in baseball. My guess is that he is really struggling but that things could click at some point. For a guy struggling to the extent that he is in his first pro season he is keeping his head above water pretty well. The lack of 2B stands out as him just generally struggling with making good contact. Compare him to Drew Gilbert and then get less excited about Gilbert.