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Carter Kieboom

Carter Kieboom

SS | B/T: R/R | 6' 2" 190 | Age: 22
Draft: 2016 (Rd: 1, #28, Washington Nationals) - Walton (GA) HS
Marietta, GA USA
MLB Pipeline Rank:
Player Apps
MLB Rankings
Fastball Velocity
Fastball Spin
Curve Spin
Exit Velocity
Hard Hit %
Pop Time
Outs Above Avg
Outfielder Jump
Sprint Speed


2019 43 39 4 5 2 2 0 .128 .209 .282 .491
1 Season 43 39 4 5 2 2 0 .128 .209 .282 .491
2019 .128 2 2 0 .491
1 Season .128 2 2 0 .491

Standard MLB Batting Statistics

2019 WSH NL 11 43 39 4 5 0 0 2 2 4 16 0 0 0 .128 .209 .282 .491
*: All Star Season, Rankings AL/NL: Top 5 10 15 20      Click for Chart.

Advanced MLB Batting Statistics

2019 WSH NL 43 11 21 0 0 .143 2 0 3 168 3.91 .372 .047 .250 .154 .154 0

Scouting Report

Scouting grades: Hit: 60 | Power: 55 | Run: 50 | Arm: 55 | Field: 50 | Overall: 55

The Nationals selected Kieboom with the first of their back-to-back picks in the first round in 2016, four years after the organization had drafted his elder brother, Spencer, a catcher, in the fifth round. Regarded by scouts as one of the better prep hitters in his class, Carter, who signed for below slot at $2 million, has steadily built upon that reputation as a pro. After being limited by a hamstring injury in what was still a productive first full season, a healthy Kieboom broke out in 2018, earning a midseason promotion to Double-A at age 20 as well as an All-Star Futures Game selection after a torrid first half in the Carolina League. He took home the Nationals Minor League Player of the Year award after ranking among the organization's Minor League leaders with 48 extra-base hits (tied for first), 16 home runs (third) and 69 RBIs (second).

Kieboom impresses scouts with plus bat speed and loose wrists as part of a balanced right-handed swing. He's comfortable hitting to all fields, with plus raw power to his pull side that should play more from line to line as he gets stronger. He did a better job in 2018 of striking balance in his approach and consistently put together strong at-bats. While not a basestealing threat, Kieboom does have average speed, which plays up thanks to his quick feet and excellent instincts.

Kieboom has worked hard to improve his defense as a pro and projects to be at least average, with the necessary range, hands and arm strength to profile elsewhere on the infield if forced off shortstop. A move to second base, where he saw reps during the Arizona Fall League, is a possibility.

Statcast - Batting

Season Pitches Batted Balls Barrels Barrel % Exit Velocity Launch Angle XBA XSLG WOBA XWOBA XWOBACON Hard Hit % K % BB %
2019 168 23 2 8.7 90.9 12.4 .213 .392 .204 .279 .419 43.5 37.2 9.3
ALL 168 23 2 8.7 90.9 12.4 .213 .392 .204 .279 .419 43.5 37.2 9.3
MLB 40553 6.3 87.5 11.2 .251 .412 .317 .318 .371 34.5 21.7 8.3


Team Date Transaction
10/31/2019 Washington Nationals activated SS Carter Kieboom.
10/01/2019 Washington Nationals reassigned SS Carter Kieboom to the minor leagues.
09/30/2019 Washington Nationals recalled SS Carter Kieboom from Fresno Grizzlies.
05/07/2019 Washington Nationals optioned SS Carter Kieboom to Fresno Grizzlies.
04/26/2019 Washington Nationals selected the contract of Carter Kieboom from Fresno Grizzlies.
04/02/2019 SS Carter Kieboom assigned to Fresno Grizzlies from Harrisburg Senators.
02/12/2019 Washington Nationals invited non-roster SS Carter Kieboom to spring training.
06/21/2018 SS Carter Kieboom assigned to Harrisburg Senators from Potomac Nationals.
04/04/2018 SS Carter Kieboom assigned to Potomac Nationals from Hagerstown Suns.
03/02/2018 IF Carter Kieboom assigned to Washington Nationals.
08/15/2017 SS Carter Kieboom assigned to Hagerstown Suns from Auburn Doubledays.
08/06/2017 Hagerstown Suns sent SS Carter Kieboom on a rehab assignment to Auburn Doubledays.
07/28/2017 Hagerstown Suns sent 2B Carter Kieboom on a rehab assignment to GCL Nationals.
05/13/2017 Hagerstown Suns placed SS Carter Kieboom on the 7-day disabled list.
04/04/2017 SS Carter Kieboom assigned to Hagerstown Suns from GCL Nationals.
06/24/2016 SS Carter Kieboom assigned to GCL Nationals.
06/16/2016 Washington Nationals signed SS Carter Kieboom.