Notice: You are currently viewing a development version of the PerfectGame.org website.
For the live site, please visit www.perfectgame.org
2,031 MLB PLAYERS | 14,466 MLB DRAFT SELECTIONS
Create Account
Sign in Create Account
Boston Kellner
2025 GRAD
 |  SS/2B, 3B, OF, RHP
 |  Colorado Springs, CO
COMMITMENT
Best PG Grade
9.5
ABOUT PG GRADES
NATIONAL RANKING CO STATE RANKING

Premium

Premium


Premium

Premium
OVERALL SS OVERALL SS
Quick arm on mound, gets heavy sink to it & can challenge hitters up w/ ride; hard, late biting curveball with teeth; strength plays in RH swing too
Pine Creek
HIGH SCHOOL
6-0
  195

HEIGHT/WEIGHT
R/R
BATS/THROWS
17 and 4 mos
AGE
WANT VIDEO?
PG EVENT RESULTS
89 mph
FB VELO 6/24/2022
6.72 sec
60 YARD DASH 7/5/2023
1.56 sec
10 YARD SPLIT 7/5/2023
LATEST PG SHOWCASE REPORT
2023 WWBA Workout Showcase (Wed)  
Boston Kellner is a 2025 SS/RHP with a 6-0 195 lb. frame from Colorado Springs, CO who attends Pine Creek. Recorded a 6.72 second 60-yard dash time. Primary shortstop with a athletic frame and strong build. Solid footwork and actions moving around the infield with two-hand funnel out front and quick release. Hands work to both sides with short arm action and accuracy on throws across the diamond with arm strength at 90 mph. Accuracy on the move with ability to drop the arm slot. Athleticism and arm strength transfer to the outfield with deliberate footwork on approach. One-hand gather to exchange with online one-hop throws to the bases at 90 mph. Right-handed hitter with an upright and balanced stance. Slightly open base with quiet hands and short knee-lift trigger. Real hand speed controlling the barrel through the zone. Easy natural loft to the path with pull side juice. Excellent student. Named to the WWBA Workout Showcase (Wed) Top Prospect List. Verbal commitment to Louisville.
PG CAREER PROGRESSION
+9 MPH
FB Velo since 06/13/2020
-0.10 SEC
10 Yard Split since 06/13/2020
-0.25 SEC
60 Time since 06/08/2021
+1 MPH
OF Velo since 06/08/2021
+10 MPH
IF Velo since 06/13/2020
+9 MPH
Exit Velo since 06/13/2020
+9.24 MPH
Max Barrel Speed since 06/13/2020
+5.35
Impact Momentum since 06/13/2020
+7.34 Gs
Max Acceleration since 06/13/2020
+9 %
Swing Efficiency since 06/08/2021
Best PG Grade: 9.5
PERCENTILE RANKINGS
CLASS OF 2025 in the recorded year
CATEGORY TOP RESULT CLASS AVG PERCENTILE
FB 89 mph 75 mph
98.79%
60 6.72 sec 7.57 sec
97.30%
10 SPL 1.56 sec 1.79 sec
96.05%
Broad Jump
Arm Strength mph mph
L-Grip lb lb
R-Grip lb lb
OF mph mph
IF mph mph
1B mph mph
C mph mph
Pop sec sec
Exit Velo mph mph
 PG Series
CATEGORY TOP RESULT CLASS AVG PERCENTILE
30 sec sec
Reaction sec sec
Shuttle sec sec
Broad Jump
CATEGORIES TOP RESULT CLASS AVG PERCENTILE
FB mph
C mph
Exit Velo mph mph
CATEGORY TOP RESULT CLASS AVG PERCENTILE
Max Barrel Speed 70.760 mph 60.83 mph
94.69%
Impact Momentum 27.664 22.54
98.00%
Max Acceleration 32.112 g's 29.59 g's
70.68%