Aledmys Diaz
Aledmys Diaz
29-Year-Old Second Baseman2B
Houston Astros
2020 Fantasy Outlook
In his first season with the Astros, Diaz provided value through his defensive versatility. Injuries to several of Houston's infielders opened up playing time for Diaz and he was effective, though he dealt with injuries of his own and was limited to 247 plate appearances. The 29-year-old carried a .357 wOBA and only struck out 11.3% of the time, walking nearly as often. Diaz carried a below-average hard-hit rate last season, but he cut down significantly on his chase rate while posting an elite zone-contact rate. While Diaz has made the most of his opportunities, he appears to be firmly entrenched as a backup in Houston. Despite his success in limited at-bats, Diaz won't hold much value outside of deeper leagues until one of Houston's regulars goes down -- an inevitability, but it's impossible to predict when that playing time will open back up. Read Past Outlooks
$Signed a one-year, $2.6 million contract with the Astros in February of 2020.
Returns as utility man
2BHouston Astros
March 21, 2020
Diaz batted .167 (4-for-24) with three extra-base hits, three RBI, three runs scored and was hit by two pitches over 11 spring games.
ANALYSIS
Diaz returns to Houston as the team's utility infielder after he was limited to 69 games due to injuries in 2019. If healthy, Diaz will be the primary backup at all four infield positions and can play left field if needed. He will also be the leading choice for a pinch hitter from the right side of the plate.
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Batting Stats
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2019
2018
2017
2019 MLB Game Log
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2018 MLB Game Log
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2017 MLB Game Log
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Batting Order Slot Breakdown
vs Right-Handed Pitchers
vs RHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
5
6
18
3
3
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
2
2
8
6
2
Left/Right Batting Splits
Since 2017
 
 
+10%
OPS vs RHP
2019
 
 
+13%
OPS vs RHP
2018
 
 
+9%
OPS vs RHP
2017
 
 
+16%
OPS vs RHP
OPS PA R HR RBI SB AVG OBP SLG
Since 2017vs Left .695 253 26 8 22 3 .224 .310 .386
Since 2017vs Right .766 747 96 26 93 6 .276 .313 .453
2019vs Left .755 77 10 3 11 1 .215 .325 .431
2019vs Right .853 170 26 6 29 1 .297 .371 .483
2018vs Left .706 114 13 5 11 0 .223 .298 .408
2018vs Right .772 338 42 13 44 3 .276 .305 .467
2017vs Left .602 62 3 0 0 2 .236 .311 .291
2017vs Right .700 239 28 7 20 2 .264 .285 .416
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Home/Away Batting Splits
Since 2017
Even Split
2019
 
 
+13%
OPS at Home
2018
 
 
+7%
OPS at Home
2017
 
 
+22%
OPS on Road
OPS PA R HR RBI SB AVG OBP SLG
Since 2017Home .750 517 64 17 61 4 .271 .310 .440
Since 2017Away .748 483 58 17 54 5 .256 .315 .434
2019Home .869 129 22 5 26 1 .301 .364 .504
2019Away .770 118 14 4 14 1 .237 .347 .423
2018Home .781 221 24 7 25 1 .285 .317 .464
2018Away .732 231 31 11 30 2 .242 .290 .442
2017Home .622 167 18 5 10 2 .231 .259 .363
2017Away .757 134 13 2 10 2 .294 .328 .429
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Stat Review
How does Aledmys Diaz compare to other hitters?
This section compares his stats with all batting seasons from the previous three seasons (minimum 400 plate appearances)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity and Barrels/PA % are benchmarked against 2019 data (min 400 PA) and Hard Hit Rate is benchmarked against last season's data (min 400 PA). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • BB/K
    Walk to strikeout ratio
  • BB Rate
    The percentage of plate appearances resulting in a walk.
  • K Rate
    The percentage of plate appearances resulting in a strikeout.
  • BABIP
    Batting average on balls in play. Measures how many of a batter’s balls in play go for hits.
  • ISO
    Isolated Power. Slugging percentage minus batting average. A computation used to measure a batter's raw power.
  • AVG
    Batting average. Hits divided by at bats.
  • OBP
    On Base Percentage. A measure of how often a batters reaches base. Roughly equal to number of times on base divided by plate appearances.
  • SLG
    Slugging Percentage. A measure of the batting productivity of a hitter. It is calculated as total bases divided by at bats.
  • OPS
    On base plus slugging. THe sum of a batter's on-base percentage and slugging percentage.
  • wOBA
    Weighted on-base average. Measures a player's overall offensive contributions per plate appearance. wOBA combines all the different aspects of hitting into one metric, weighting each of them in proportion to their actual run value.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Hard Hit Rate
    A measure of contact quality from Sports Info Solutions. This stat explains what percentage of batted balls were hit hard vs. medium or soft.
  • Barrels/PA
    The percentage of plate appearances where a batter had a batted ball classified as a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
BB/K
0.93
 
BB Rate
10.5%
 
K Rate
11.3%
 
BABIP
.268
 
ISO
.195
 
AVG
.271
 
OBP
.356
 
SLG
.467
 
OPS
.823
 
wOBA
.357
 
Exit Velocity
88.3 mph
 
Hard Hit Rate
32.5%
 
Barrels/PA
4.1%
 
Advanced Batting Stats
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Additional Stats
Games By Position
Defensive Stats
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Batted Ball Stats
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Stats Vs Upcoming Pitchers
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132 days ago
Todd Zola dives into the weeds on how the average exit velocity on groundballs impacts BABIP while also looking at other factors, such as the elite sprint speed of players like Trea Turner.
Past Fantasy Outlooks
2019
2018
2017
2016
2015
2014
2013
Following an offseason trade to the Blue Jays, Diaz set a career high in homers in 2018. He missed some time with an ankle injury early on but still went on to clear 450 plate appearances as Toronto dealt with a slew of injuries around the infield. After walking in 8.9% of his plate appearances and batting .300 as a rookie in 2016, he hasn't cleared 5.1 or .263, respectively, in the years since. Diaz has decent power but the lack of speed on the basepaths makes him rather unexciting in most fantasy setups. In November, Toronto traded the 28-year-old to the Astros, who dealt with injuries to Jose Altuve (knee) and Carlos Correa (back) last season. Both are expected to be healthy for spring training. Unless one of their timetables looks bleak come March, Diaz should only garner interest in deep leagues where one can justifiably draft a team's backups. If you're expecting him to be the new Marwin Gonzalez, you're expecting a bit too much.
Diaz enjoyed a breakout 2016 campaign with the Cardinals (133 wRC+ in 460 plate appearances) and was seemingly entrenched as the club's everyday shortstop heading in the 2017 season. Unfortunately, Diaz struggled to find his footing in the early going and was ultimately demoted to Triple-A Memphis in late June after slashing just .260/.293/.396 over the season's first three months. The shortstop's walk rate was cut in half -- from 8.9 percent in 2016 to 4.3 percent -- and he watched his power numbers plummet as well. Diaz's hard-hit rate fell eight percentage points in his second big-league season and his ISO dropped from .210 to .133. He continued to struggle at Triple-A (77 wRC+ in 187 plate appearances) while Paul DeJong took full advantage of his opportunity as the team's starting shortstop. The Cards shipped Diaz out to Toronto in the offseason, which is a big positive for Diaz given the injury histories of the two middle-infielders in front of him (Troy Tulowitzki and Devon Travis).
It's a shame that Diaz missed over a month courtesy of a fractured thumb, as St. Louis' under-the-radar rookie was in the midst of a phenomenal debut season. Despite dealing with the thumb injury, he still finished the year with an outstanding .300/.369/.510 line to go with 17 home runs and 65 RBI. Unfortunately, his defensive display was subpar and led to a .961 fielding percentage and 2.7 WAR. Diaz is fully expected to keep the title of starting shortstop, and with better health, should blow past his total of 111 games from a year ago. Prospective owners will want to be aware of the inherent risk that follows Diaz; due to him entering the league with little pedigree, the danger that he regresses during his sophomore season is more prevalent than with more proven prospects. However, if he continues to produce at a rate close to that from 2016, Diaz should finish inside the top 15 at the position.
The 25-year-old middle infielder had a breakout campaign in 2015, slashing .264/.324/.421 with 10 homers and six steals in 102 games at Double-A, following that up with some ridiculous numbers in a brief stop at Triple-A and in the Arizona Fall League. Realistically he is more batting average than anything else, and the power and speed totals would likely both be in the single digits over a full season in the big leagues. He will start the year at Triple-A, but if Ruben Tejada struggles while Jhonny Peralta is sidelined in the first half, Diaz could be the next man up.
Diaz was signed last year after defecting from Cuba where he hit .308/.401/.444 across five seasons in Cuba's Serie Nacional. He battled injuries for much of the season, which was no surprise since he had not played any organized baseball for over a year after defecting. Diaz still managed to put up some fairly impressive numbers for Double-A Springfield posting a .291/.311/.453 line. He will probably spend the majority of 2015 in Triple-A and at age 24 is still young enough that he holds some promise. Right now he doesn't project to be much more than a marginal MLB player if he can make it that far, and with Jhonny Peralta coming off a very good season in 2014 it's unlikely the Cardinals will need Diaz to contribute in St. Louis any time soon.
Diaz was a shortstop with a well-rounded skill set in Cuba's professional league, and could quickly be in the majors after signing. That event will be delayed; he was barred from signing with an MLB team until Feb. 19, 2014 for presenting a false date of birth when he applied to become a free agent after defecting. Diaz hit .315/.404/.500 with 12 home runs in 270 at-bats during the 2011-12 season before he defected, according to CBS Sports. It's not clear if his glove is strong enough to stick at shortstop, so he may need to move to second base.
Diaz is a Cuban defector who played for Cuba in the 2010 Pan-American games. He's seen as nearly ready for the majors, but it's not clear how his bat will translate to MLB play.
More Fantasy News
Wins arbitration case
2BHouston Astros
February 19, 2020
Diaz will make $2.6 million this season after winning his arbitration case, Jake Kaplan of The Athletic reports.
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Could start Game 1
2BHouston Astros
October 11, 2019
Diaz could earn a start against Yankees lefty James Paxton in the ALCS, Jake Kaplan of The Athletic reports.
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Fills in for Correa
2BHouston Astros
September 25, 2019
Diaz started at third base and went 1-for-2 with a double, an RBI and a run scored in Tuesday's 3-0 win over Seattle.
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Drives in three runs
2BHouston Astros
September 22, 2019
Diaz went 3-for-4 with a homer, three RBI and three runs scored in Sunday's 13-5 win over the Angels.
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Fills in for Gurriel
2BHouston Astros
September 21, 2019
Diaz started at first base for Yuli Gurriel (illness) and went 3-for-4 with a double and a run scored in Friday's 6-4 win over the Angels.
ANALYSIS
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