Carter Kieboom
Carter Kieboom
22-Year-Old ShortstopSS
Washington Nationals
2019 Fantasy Outlook
Kieboom was an elite hitter at Low-A and High-A, and while he remains a good prospect, his stock has leveled off since a promotion to Double-A. He struggled to hit for power in the Eastern League, notching a .133 ISO in 62 games. That trend continued in the Arizona Fall League, where he hit .295/.427/.372 -- leading all hitters in walks (17) while tallying just three extra-base hits in 78 at-bats. He won't need to be a middle-of-the-order bat to play every day, but the expectation a year ago was that he would be at least a 20-homer threat in the majors. It now seems a little less likely that Kieboom hits for impactful power while also hitting around .280. Perhaps he ends up hitting .265 with 25 homers, which is still valuable production from an infielder. If Anthony Rendon leaves in free agency after the 2019 season, Kieboom will serve as his long-term replacement at third base. That said, if Kieboom looks ready this summer, he may debut at the keystone. Read Past Outlooks
RANKSFrom Preseason
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$Signed a contract with the Nationals in June of 2016 that includes a $2 million signing bonus.
Unlikely to see September callup
SSWashington Nationals  AAA
September 3, 2019
Kieboom isn't expected to be promoted from Triple-A Fresno during the final month of the season, Jamal Collier of MLB.com reports.
ANALYSIS
Kieboom will head to West Palm Beach to see at-bats in case he does need to be called up, though the Nationals are unlikely to promote the prospect unless there's an injury. He made his big-league debut earlier this year, going 5-for-39 with two home runs and four walks over 11 games.
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Batting Stats
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Batting Order Slot Breakdown
vs Right-Handed Pitchers
vs RHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
4
2
1
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
1
2
Left/Right Batting Splits
Since 2017
 
 
+31%
OPS vs RHP
2019
 
 
+31%
OPS vs RHP
2018
No Stats
2017
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2017vs Left .393 8 1 0 0 0 .143 .250 .143
Since 2017vs Right .513 35 3 2 2 0 .125 .200 .313
2019vs Left .393 8 1 0 0 0 .143 .250 .143
2019vs Right .513 35 3 2 2 0 .125 .200 .313
2018vs Left 0 0 0 0 0 0 0 0 0
2018vs Right 0 0 0 0 0 0 0 0 0
2017vs Left 0 0 0 0 0 0 0 0 0
2017vs Right 0 0 0 0 0 0 0 0 0
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Home/Away Batting Splits
Since 2017
 
 
+107%
OPS at Home
2019
 
 
+107%
OPS at Home
2018
No Stats
2017
No Stats
OPS PA R HR RBI SB AVG OBP SLG
Since 2017Home .622 26 2 2 2 0 .130 .231 .391
Since 2017Away .301 17 2 0 0 0 .125 .176 .125
2019Home .622 26 2 2 2 0 .130 .231 .391
2019Away .301 17 2 0 0 0 .125 .176 .125
2018Home 0 0 0 0 0 0 0 0 0
2018Away 0 0 0 0 0 0 0 0 0
2017Home 0 0 0 0 0 0 0 0 0
2017Away 0 0 0 0 0 0 0 0 0
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Stat Review
How does Carter Kieboom 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
0.25
 
BB Rate
9.3%
 
K Rate
37.2%
 
BABIP
.143
 
ISO
.154
 
AVG
.128
 
OBP
.209
 
SLG
.282
 
OPS
.491
 
wOBA
.213
 
Exit Velocity
90.9 mph
 
Hard Hit Rate
43.5%
 
Barrels/PA
4.7%
 
Advanced Batting Stats
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Additional Stats
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Defensive Stats
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Stats Vs Upcoming Pitchers
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Recent RotoWire Articles Featuring Carter Kieboom
Games Played By Position: 2020 Eligibility Notes
33 days ago
Clay Link looks at appearances by position and makes note of multi-position eligibility and lost eligibility for 2020.
NL FAAB Factor: Waiver Pickups of the Week
78 days ago
As we await expanded rosters, Jan Levine looks at the latest available NL candidates while mentioning a few who could stick for the rest of the regular season.
Regan's Rumblings: 30 Teams; 30 Potential September Contributors
83 days ago
Dave Regan details one player from each team who could contribute with September’s roster expansion, including Austin Riley, who might help the Braves as they deal with various injuries.
Farm Futures: September Callup Candidates
95 days ago
James Anderson profiles every potentially relevant September callup, including Kyle Tucker, who has been worse in a repeat tour of the Pacific Coast League.
Minor League Barometer: Risers & Fallers
97 days ago
As the summer reaches unbearable temperatures, Jesse Siegel continues to report on the prospects who are heating up and which ones are cooling down.
Past Fantasy Outlooks
2018
2017
In an injury shortened campaign, Kieboom still impressed enough in his first year in a full season league to generate Troy Tulowitzki comps. Prior to a mid May hamstring injury that cost him 10 weeks, he slashed .333/.398/.586 with six home runs and a 25:10 K:BB in 123 plate appearances. While Kieboom was quite a bit worse (.755 OPS) after returning to Hagerstown in mid August, he still got on base a ton (.402 OBP, 18 walks in 19 games), and looks more than ready for an assignment to High-A. Thanks to impressive bat speed and a very advanced approach, the 6-foot-2 shortstop has the foundation to hit for average and for power, potentially flirting with some .300/.400/.500 seasons. He is a below-average runner, so his bat will have to provide all of his fantasy value. His defense at shortstop is passable, but not good enough to displace a quality option, so it’s possible his future home is second base or third base.
The 28th overall pick in the 2016 draft, Kieboom was seen as a polished high school shortstop without a true standout tool, but average to above average ability almost across the board. That scouting report didn't exactly bear fruit in his professional debut, as he hit just .244 with 43 strikeouts in 36 games in the Gulf Coast League, but plenty of prospects have gone on to excellent careers after struggling as 18-year-olds in their debuts. Long term he may outgrow shortstop and move to third base, but he has the arm for the position, and his ultimate fantasy value will depend on how his power stroke develops as he likely won't offer much on the basepaths. He's not an elite dynasty asset by any means, but assuming he bounces back in 2017, Kieboom figures to provide the Nationals with solid production with both his glove and his bat beginning in the early 2020s.
More Fantasy News
Seeing time at third base
SSWashington Nationals  AAA
July 3, 2019
Kieboom went 3-for-5 with a home run, three runs scored and two RBI for Triple-A Fresno on Tuesday.
ANALYSIS
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Surging at Triple-A
SSWashington Nationals  AAA
June 24, 2019
Kieboom went 3-for-4 with three walks, a grand slam and a second run scored for Triple-A Fresno on Sunday.
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Still slugging for Fresno
SSWashington Nationals  AAA
May 20, 2019
Kieboom has gone 10-for-32 (.313) with three doubles, three home runs, nine RBI and a 6:5 BB:K in nine games since being optioned back to Triple-A Fresno.
ANALYSIS
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Homers in return to Fresno
SSWashington Nationals  AAA
May 10, 2019
Kieboom went 1-for-4 with a walk, a home run, two runs scored and two RBI for Triple-A Fresno on Thursday.
ANALYSIS
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Demoted to Triple-A
SSWashington Nationals  AAA
May 7, 2019
Kieboom was optioned to Triple-A Fresno on Tuesday, Jamal Collier of MLB.com reports.
ANALYSIS
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