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Astros MiLB Position Review: First Base

A review of the first base position in the Astros system.

Seattle Mariners v Houston Astros Photo by Bob Levey/Getty Images

Now that the season is over we will review each position in the minor league system. This week we move on to the first base position.


Yordan Alvarez

Alvarez was originally signed by the Dodgers out of Cuba for $2 million and the Astros snagged him in the trade that sent Fields to Los Angeles. Alvarez was seen as a raw prospect coming into this year but he turned heads crushing the ball in Quad Cities with a 207 wRC+ in 32 games. He was promoted to Buies Creek and was solid there as well cutting down on his strikeout rate and driving in 36 in 58 games. He played some in the outfield but should start moving up the ranks as a first base prospect. Overall he had a 139 wRC+ as a 20 year old between A/A+.

2017 Stats: 90 G, .304 BA/.379 OBP/.481 SLG, 17 2B, 12 HR, 69 RBI, 8 SB, 42 BB/77 SO

A.J. Reed

Reed flew up the prospect rankings after a monster 2015 season. Unfortunately, he fell off a bit after a struggle in the majors last season. In 2017 he started slow but finished with 34 HR, 104 RBI including hitting .293 with 19 HR, 52 RBI in 46 games after the AAA All-Star game. While his strike out rate was up this year, his walk rate increased from last season and he posted a slightly higher ISO. Reed has lost a little buzz but he still has the looks over a potential three true outcome slugger.

2017 Stats: 127 G, .261 BA/.358 OBP/.525 SLG, 24 2B, 34 HR, 104 RBI, 72 BB/146 SO

Troy Sieber

Sieber was a 24th round pick by the Astros in the 2016 draft. He had a very good junior year at Saint Leo hitting .457 with 16 HR. After the draft he spent time between GCL and Greeneville and hit .253 in 52 games. In 2017 he put together a very solid season hitting .289 with a .403 OBP. That also came with a 16.1 BB% and 20.4 K% good for an .862 OPS.

2017 Stats: 57 G, .289 BA/.403 OBP/.457 SLG, 12 2B, 7 HR, 33 RBI, 37 BB/49 SO


Dexture McCall

McCall was a solid performer last year with Quad Cities hitting .286 in 108 games. His numbers were down a bit this year hitting .231 in 54 games for Buies Creek. He was eventually promoted to Corpus Christi where he hit .242 with 6 HR in 37 games. Overall he had a combined .707 OPS.

2017 Stats: 91 G, .236 BA/.325 OBP/.382 SLG, 12 2B, 10 HR, 35 RBI, 41 BB/96 SO

Jake Adams

Adams was the Astros 6th round pick in the 2017 draft. Adams came with the promise of huge power as he hit 29 HR in 61 games at Iowa his junior season. Unfortunately his debut season didn't go as well as he struggled to make contact striking out 68 times in 48 games. Adams is only 21 so he will still have time to turn it around.

2017 Stats: 48 G, .170 BA/.280 OBP/.388 SLG, 6 2B, 10 HR, 21 RBI, 24 BB/68 SO


The Astros still have depth at the first base position with Reed and a potential top prospect in Alvarez. Keep an eye on Alvarez as he moves up the rankings this winter. There are a few boom or bust guys like Adams but overall the talent at the first base position is down a bit in the Astros system.