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1,650 MLB PLAYERS | 13,326 MLB DRAFT SELECTIONS
Boston Kellner
2025 GRAD
 |  SS/RHP
 |  Colorado Springs, CO
COMMITMENT
Best PG Grade
9
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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
6-0
  175
HIGH SCHOOL TEAM LAST PLAYED HEIGHT/WEIGHT
R/R
15 and 5 mos
BATS/THROWS AGE
PG EVENT RESULTS
88
FB VELO
6.97
60 YARD DASH
1.62
10 YARD SPLIT
89
OF VELO
87
IF VELO
88
EXIT VELO
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LATEST PG SHOWCASE REPORT
2021 14U National Showcase  
Boston Kellner is a 2025 RHP/SS, OF with a 6-0 175 lb. frame from Colorado Springs, CO who attends Pine Creek. Lean, athletic build with plenty of projection for the future. Ran the sixty in 7.15 seconds. Primary RHP, he throws from a high 3/4 arm slot and his FB peaked at 85 mph while sitting 78-84 mph. Showed a devastating 12/6 CB that had solid tightness and bite along with having feel for landing it in the zone. Will also manipulate the shape to a 11/5 version as well. In the OF, his best throw was 86 mph and he showed a quick and fluid release. His best throw as an infielder was 85 mph. At the plate he hits out of a balanced stance and uses a leg lift to generate leverage. The bat path has natural loft to it to go along with his solid bat speed and aggressive intent in his swings. Also an excellent student in the classroom.
PG CAREER PROGRESSION
+6 MPH
FB VELO SINCE 06/13/2020
+5 MPH
IF VELO SINCE 06/13/2020
+5 MPH
EXIT VELO SINCE 06/13/2020
+2.63 MPH
DK MBS SINCE 06/13/2020
+1.70
DK IM SINCE 06/13/2020
VIEW PG PROGRESSION CHARTS
PERCENTILE RANKINGS
CLASS OF 2025 in the recorded year
CATEGORY TOP RESULT CLASS AVG PERCENTILE
FB 88 mph 71
99.88%
60 6.97 sec 7.80
97.00%
10 SPL 1.62 sec 1.92
91.97%
OF 89 mph 74
98.91%
IF 87 mph 72
99.30%
CATEGORIES TOP RESULT CLASS AVG PERCENTILE
Exit Velo 88 mph 74
97.11%
CATEGORY TOP RESULT CLASS AVG PERCENTILE
Max Barrel Speed 66.379 mph 58.66
92.09%
Impact Momentum 24.992 21.72
94.11%
Max Acceleration 32.112 g’s 25.79
89.91%
DIAMONDKINETICS TRENDING DATA
NON-PG VERIFIED SWINGS
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Max Barrel Speed (mph)
PG Tech FAQ
Right Handed Hitting
2021 14U National Showcase

Your Signature Sequence:

The order in which each body segment reaches its peak speed

#1 Pelvis
#2 Torso
#3 Arm
#4 Hand

Peak Speeds (deg/sec)

Pelvis Torso Arm Hand
741.0 862.0 1420.0 2081.0

Speeds Gains (deg/sec)

Pelvis to Torso Torso to Arm Arm to Hand
121.0 558.0 661.0

Slow Motion Video

Stretch Gained   30.39
Stretch at Contact   -21.74
Exit Velo   85.0 MPH
Right Handed Hitting
2021 13U/14U Sunshine Rocky Mountain Showcase (Tues/Wed)

Your Signature Sequence:

The order in which each body segment reaches its peak speed

#1 Pelvis
#2 Arm
#3 Torso
#4 Hand

Peak Speeds (deg/sec)

Pelvis Torso Arm Hand
677.0 987.0 1361.0 2024.0

Speeds Gains (deg/sec)

Pelvis to Torso Torso to Arm Arm to Hand
310.0 374.0 663.0

Slow Motion Video

Stretch Gained   29.44
Stretch at Contact   -20.93
Exit Velo   85.0 MPH
BEST SINGLE GAME STATS
BATTING STATSLAST OCCURRENCE
At bats: 5 Jan 18, 2021 vs. TBT Ballers National
Runs: 3 May 29, 2021 vs. Dallas Tigers West Duran
Hits: 3 May 29, 2021 vs. Canes Southwest 2025 Valdez
RBI's: 3 May 15, 2021 vs. Elite Squad Cf
Doubles: 2 Jan 18, 2021 vs. TBT Ballers National
Triples: 1 Jul 26, 2021 vs. Tbt Ballers National
Home runs: 1 Jun 09, 2021 vs. 2-Royal
Total bases: 6 May 15, 2021 vs. Elite Squad Cf
Walks: 2 Jul 26, 2021 vs. Tbt Ballers National
SAC flies: 1 Sep 24, 2021 vs. 5 Star National 15U Gold
Stolen bases: 4 May 29, 2021 vs. Canes Southwest 2025 Valdez
Hit by pitch: 1 Oct 10, 2021 vs. Boca Thunder Baseball Underclass
PITCHING STATSLAST OCCURRENCE
Inn. pitched: 6.0 Sep 20, 2020 vs. Canes 14U Simpson
Runs allowed: 0 Oct 09, 2021 vs. Ostingers Baseball Academy 2025
Earned runs: 0 Oct 09, 2021 vs. Ostingers Baseball Academy 2025
Hits allowed: 0 Oct 09, 2021 vs. Ostingers Baseball Academy 2025
Strikeouts: 9 Jul 09, 2020 vs. USA Prime National 2025
Walks allowed: 0 Sep 25, 2021 vs. Gatorball 16U
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