Geraldo Perdomo
21-Year-Old ShortstopSS
Arizona Diamondbacks AA
2021 Fantasy Outlook
Perdomo doesn't have loud tools, but he has a career .411 OBP in the minors and is a lock to stick at shortstop, so he should have a long career. His tools play up due to excellent instincts. At 6-foot-3 and with a quick, whippy bat, he could eventually tap into 20-homer power, but we haven't seen that manifest yet. The switch hitter puts more of a charge into the ball from the left side. Perdomo, a 55-grade runner, relies on long strides and good instincts to steal bases. He was 20-for-28 on SB attempts at Low-A, but was 8-for-16 in the Cal League and Arizona Fall League. His defense will keep him in the lineup, and he could be a leadoff hitter with his plate discipline and potentially plus hit tool. Perdomo was limited by a minor foot injury during fall instructs. He turned 21 this offseason and already had success at High-A and the AFL, so he should open at Double-A and could move quickly to Triple-A. Read Past Outlooks
RANKSFrom Preseason
#601
ADP
Optioned to alternate camp
SSArizona Diamondbacks  AA
April 10, 2021
Perdomo was optioned to the Diamondbacks' alternate training site Saturday.
ANALYSIS
Perdomo got his first taste of major-league action early in the 2021 campaign and went 1-for-10 with a run, three walks and two strikeouts in four games. However, he'll head to the team's alternate camp after Nick Ahmed (knee) was activated from the 10-day injured list in a corresponding move. Josh Rojas should serve as the backup shortstop for Arizona now that Ahmed is healthy.
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Batting Stats
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2021
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Batting Order Slot Breakdown
vs Right-Handed Pitchers
vs RHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
3
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
Left/Right Batting Splits
Since 2019
 
 
-100%
OPS vs RHP
2021
 
 
-100%
OPS vs RHP
2020
No Stats
2019
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2019vs Left .000 3 0 0 0 0 .000 .000 .000
Since 2019vs Right .543 10 1 0 0 0 .143 .400 .143
2021vs Left .000 3 0 0 0 0 .000 .000 .000
2021vs Right .543 10 1 0 0 0 .143 .400 .143
2020vs Left 0 0 0 0 0 0 0 0 0
2020vs Right 0 0 0 0 0 0 0 0 0
2019vs Left 0 0 0 0 0 0 0 0 0
2019vs Right 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Home/Away Batting Splits
Since 2019
 
 
-100%
OPS on Road
2021
 
 
-100%
OPS on Road
2020
No Stats
2019
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2019Home 0 0 0 0 0 0 0 0 0
Since 2019Away .408 13 1 0 0 0 .100 .308 .100
2021Home 0 0 0 0 0 0 0 0 0
2021Away .408 13 1 0 0 0 .100 .308 .100
2020Home 0 0 0 0 0 0 0 0 0
2020Away 0 0 0 0 0 0 0 0 0
2019Home 0 0 0 0 0 0 0 0 0
2019Away 0 0 0 0 0 0 0 0 0
More Splits View More Split Stats
Stat Review
How does Geraldo Perdomo 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
1.50
 
BB Rate
23.1%
 
K Rate
15.4%
 
BABIP
.125
 
ISO
.000
 
AVG
.100
 
OBP
.308
 
SLG
.100
 
OPS
.408
 
wOBA
.189
 
Exit Velocity
78.6 mph
 
Hard Hit Rate
0.0%
 
Barrels/PA
0.0%
 
Prospect Rankings History
Advanced Batting Stats
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Additional Stats
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Defensive Stats
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Batted Ball Stats
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Recent RotoWire Articles Featuring Geraldo Perdomo
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30 days ago
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NL FAAB Factor: Baseball Is Back Edition
312 days ago
Baseball is back, and Jan Levine profiles players whose value has changed recently, including Jay Bruce, who should get at-bats at DH this season.
Past Fantasy Outlooks
2020
2019
Perdomo put on a clinic at Low-A, High-A and the Arizona Fall League, all as a 19-year-old switch hitter who will stick at shortstop. He had a slow start in the cold conditions of the Midwest League, but from the start of summer (June 21) on, he hit .309/.406/.398 with an 11.7 BB% and 14.9 K% across three levels. Power is not yet a big part of his game, but he is 6-foot-3 and generates plus bat speed with his whippy swing, so the expectation is that he will be a 25-homer guy once physically mature -- there are some similarities to Didi Gregorius with regards to size, defense and power upside. An above-average runner, Perdomo was 20-for-28 on SB attempts at Low-A, but was 8-for-16 in the Cal League and AFL. He could swipe 10-15 bases in his early years. His advanced approach and hit tool have him on a fast track, but he will probably face an adjustment period at some point in his age-20 season.
Perdomo emerged in rookie/short-season leagues late enough in the season that the hype surrounding him did not fully materialize until after he played his final game. He entered the year under the radar, as he only signed for $70,000 out of the Dominican Republic in 2016. A switch hitter whose defensive home is not set in stone, Perdomo has a projectable 6-foot-2, 184-pound frame and a whippy swing that should eventually generate 20-homer pop, primarily from the left side. He is at least a 55-grade runner and has good instincts on the bases, leading to 24 steals on 30 tries in 57 games. However, what will carry him to an everyday role in the big leagues will be his advanced approach and hit tool. He hits line drives and flyballs to all fields and logged a 44:39 K:BB in 257 PA across the AZL, Pioneer League and Northwest League. Perdomo will head to the Midwest League for his age-19 season where his stock could explode if he meets expectations.
More Fantasy News
Not starting Wednesday
SSArizona Diamondbacks  AA
April 7, 2021
Perdomo is out of the lineup for Wednesday's game at Colorado.
ANALYSIS
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Making first big-league start
SSArizona Diamondbacks  AA
April 4, 2021
Perdomo will start at shortstop and bat eighth Sunday against the Padres.
ANALYSIS
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Enters game late
SSArizona Diamondbacks  AA
April 4, 2021
Perdomo made his MLB debut Saturday and struck out in his lone at-bat in a 7-0 loss to the Padres.
ANALYSIS
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Set for big-league debut
SSArizona Diamondbacks  AA
April 3, 2021
Perdomo is being called up to the majors Saturday, Jeff Passan of ESPN.com reports.
ANALYSIS
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Bound for Triple-A
SSArizona Diamondbacks  AA
March 16, 2021
The Diamondbacks optioned Perdomo to Triple-A Reno on Tuesday.
ANALYSIS
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