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Boston Kellner
2025 GRAD
 |  3B/MIF, OF, RHP
 |  Chandler, AZ
COMMITMENT
Best PG Grade
9.5
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OVERALL 3B OVERALL 3B
Two-time Select Festival athlete, two-way prospect, strong right handed bat, 6.72 runner, 90 off the mound, just a very good all around baseball player.
Hamilton
HIGH SCHOOL
6-0
  205

HEIGHT/WEIGHT
R/R
BATS/THROWS
17 and 11 mos
AGE
WANT VIDEO?
PG EVENT RESULTS
90 mph
FB VELO 10/4/2023
6.72 sec
60 YARD DASH 7/5/2023
1.56 sec
10 YARD SPLIT 7/5/2023
90 mph
OF VELO 7/5/2023
90 mph
IF VELO 7/5/2023
92 mph
EXIT VELO 7/6/2023
Pitching Stats
  Advanced Statistics

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2023 Calendar Year
W L SV GP ERA IP H R ER 2B 3B HR BB IBB HBP SO AVG OPS WHIP
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Advanced
BF P P/IP P/BF B% S% SW% SM% WHIF% WP BK K/BB BB% K% K/7 BB/7 OBP SLG
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Batted Ball
BF XBH GO/AO GB% AIR% HR/FB GIDP BABIP ISO PULL% OPPO%
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W L SV GP ERA IP H R ER 2B 3B HR BB IBB HBP SO AVG OPS WHIP
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Advanced
BF P P/IP P/BF B% S% SW% SM% WHIF% WP BK K/BB BB% K% K/7 BB/7 OBP SLG
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Batted Ball
BF XBH GO/AO GB% AIR% HR/FB GIDP BABIP ISO PULL% OPPO%
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W L SV GP ERA IP H R ER 2B 3B HR BB IBB HBP SO AVG OPS WHIP
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Advanced
BF P P/IP P/BF B% S% SW% SM% WHIF% WP BK K/BB BB% K% K/7 BB/7 OBP SLG
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Batted Ball
BF XBH GO/AO GB% AIR% HR/FB GIDP BABIP ISO PULL% OPPO%
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W L SV GP ERA IP H R ER 2B 3B HR BB IBB HBP SO AVG OPS WHIP
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Advanced
BF P P/IP P/BF B% S% SW% SM% WHIF% WP BK K/BB BB% K% K/7 BB/7 OBP SLG
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Batted Ball
BF XBH GO/AO GB% AIR% HR/FB GIDP BABIP ISO PULL% OPPO%
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Batting Stats
  Advanced Statistics

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Batting Spray Chart Spray Chart
2023 Calendar Year
OPS AVG OBP SLG G AB R H 2B 3B HR RBI BB SO SB CS
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Advanced
XBH TB BB/K BB% K% IBB HBP SF ISO BABIP SW% SM% WHIF% B% S%
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Batted Ball
PA GO/AO GB% AIR% PULL% OPPO% HR/FB GIDP
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OPS AVG OBP SLG G AB R H 2B 3B HR RBI BB SO SB CS
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Advanced
XBH TB BB/K BB% K% IBB HBP SF ISO BABIP SW% SM% WHIF% B% S%
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Batted Ball
PA GO/AO GB% AIR% PULL% OPPO% HR/FB GIDP
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OPS AVG OBP SLG G AB R H 2B 3B HR RBI BB SO SB CS
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Advanced
XBH TB BB/K BB% K% IBB HBP SF ISO BABIP SW% SM% WHIF% B% S%
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Batted Ball
PA GO/AO GB% AIR% PULL% OPPO% HR/FB GIDP
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OPS AVG OBP SLG G AB R H 2B 3B HR RBI BB SO SB CS
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Advanced
XBH TB BB/K BB% K% IBB HBP SF ISO BABIP SW% SM% WHIF% B% S%
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Batted Ball
PA GO/AO GB% AIR% PULL% OPPO% HR/FB GIDP
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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
+10 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 90 mph 75 mph
99.12%
60 6.72 sec 7.53 sec
96.87%
10 SPL 1.56 sec 1.75 sec
95.42%
OF 90 mph 78 mph
95.58%
IF 90 mph 75 mph
98.19%
CATEGORIES TOP RESULT CLASS AVG PERCENTILE
Exit Velo 92 mph 78 mph
96.79%
PG Tech FAQ
2023 Jr. National Showcase
Right Handed Hitting

Swing Efficiency™

73%

Exit Velo

88mph

Swing Sequence

The order in which each body segment reaches its peak speed

#1 Pelvis
#2 Torso
#3 Arm
#4 Hand
2021 14U National Showcase
Right Handed Hitting

Swing Efficiency™

66%

Exit Velo

85mph

Swing Sequence

The order in which each body segment reaches its peak speed

#1 Pelvis
#2 Torso
#3 Arm
#4 Hand
2021 13U/14U Sunshine Rocky Mountain Showcase (Tues/Wed)
Right Handed Hitting

Swing Efficiency™

64%

Exit Velo

85mph

Swing Sequence

The order in which each body segment reaches its peak speed

#1 Pelvis
#2 Arm
#3 Torso
#4 Hand
CATEGORY TOP RESULT CLASS AVG PERCENTILE
Max Barrel Speed 70.760 mph 61.37 mph
93.24%
Impact Momentum 27.664 22.76
97.29%
Max Acceleration 32.112 g's 30.09 g's
67.74%
BEST SINGLE GAME STATS
BATTING STATSLAST OCCURRENCE
At bats: 5 Jan 18, 2021 vs. TBT Ballers National
Runs: 3 Oct 08, 2023 vs. GBG/TB SoCal National
Hits: 3 May 29, 2021 vs. Canes Southwest 2025 Valdez
RBI's: 4 Oct 05, 2023 vs. Stix 2024 Scout
Doubles: 2 Jun 26, 2022 vs. Atl Lightning 15u Caldwell
Triples: 1 Jul 26, 2021 vs. Tbt Ballers National
Home runs: 1 Sep 24, 2022 vs. Team Florida
Total bases: 6 May 15, 2021 vs. Elite Squad Cf
Walks: 2 Oct 08, 2023 vs. Marucci Elite Texas - Dunn
SAC flies: 1 Oct 05, 2023 vs. Brewers Langley Blaze
Stolen bases: 4 May 29, 2021 vs. Canes Southwest 2025 Valdez
Hit by pitch: 1 Sep 29, 2023 vs. 5TPDevelopment
PITCHING STATSLAST OCCURRENCE
Inn. pitched: 6.0 Sep 20, 2020 vs. Canes 14U Simpson
Runs allowed: 0 Oct 06, 2023 vs. Royals Scout Team 2024
Earned runs: 0 Oct 06, 2023 vs. Royals Scout Team 2024
Hits allowed: 0 Sep 29, 2023 vs. Hit Factory Pros 2025
Strikeouts: 9 Jul 09, 2020 vs. USA Prime National 2025
Walks allowed: 0 Oct 06, 2023 vs. Royals Scout Team 2024