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Alfrin "AJ" Rosario
2025 GRAD
 |  3B/RHP
 |  Miami Lakes, FL
UNCOMMITTED
Best PG Grade
9
ABOUT PG GRADES
Mater Lakes Academy
HIGH SCHOOL
6-1
  185

HEIGHT/WEIGHT
R/R
BATS/THROWS
17 and 3 mos
AGE
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PG EVENT RESULTS
94 mph
FB VELO 1/27/2024
7.10 sec
60 YARD DASH 1/27/2024
1.78 sec
10 YARD SPLIT 11/5/2022
90 mph
IF VELO 6/10/2023
87 mph
EXIT VELO 6/12/2023
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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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 Jr. National Showcase  
Alfrin Rosario is a 2025 SS/2B with a 6-0 175 lb. frame from Miami, FL who attends Mater Academy Lakes. Medium athletic build with some present strength and room for plenty more. 7.18 runner in the sixty. Primary middle infielder on defense, has fluid actions through the ball, soft and sure hands fielding it, clean to the back hand, changes arm slots well, plenty of raw arm strength throwing from over the top. Right handed hitter, hits from an open stance with a short leg raise load, has a short and efficient line drive swing, stays balanced well, pull to mid field contact. Should keep improving with additional strength and repetitions, especially on offense.
PG CAREER PROGRESSION
+18 MPH
FB Velo since 02/28/2020
-0.31 SEC
60 Time since 11/05/2022
+2 MPH
IF Velo since 11/05/2022
+7 MPH
Exit Velo since 11/05/2022
+9.50 MPH
Max Barrel Speed since 11/05/2022
+2.77
Impact Momentum since 11/05/2022
+10.59 Gs
Max Acceleration since 11/05/2022
Best PG Grade: 9
PERCENTILE RANKINGS
CLASS OF 2025 in the recorded year
CATEGORY TOP RESULT CLASS AVG PERCENTILE
FB 94 mph 75 mph
99.95%
60 7.10 sec 7.53 sec
80.30%
10 SPL 1.78 sec 1.75 sec
36.70%
IF 90 mph 75 mph
98.18%
CATEGORIES TOP RESULT CLASS AVG PERCENTILE
Exit Velo 87 mph 78 mph
87.12%
PG Tech FAQ
2023 Jr. National Showcase
Right Handed Hitting

Swing Efficiency™

57%

Exit Velo

87mph

Swing Sequence

The order in which each body segment reaches its peak speed

#1 Pelvis
#2 Arm
#3 Torso
#4 Hand
2022 Miami Prospect Showcase
Right Handed Hitting

Swing Efficiency™

64%

Exit Velo

80mph

Swing Sequence

The order in which each body segment reaches its peak speed

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

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CATEGORY TOP RESULT CLASS AVG PERCENTILE
Max Barrel Speed 70.804 mph 61.35 mph
93.36%
Impact Momentum 25.740 22.75
88.18%
Max Acceleration 39.275 g's 30.07 g's
92.61%
BEST SINGLE GAME STATS
BATTING STATSLAST OCCURRENCE
At bats: 4 Jul 10, 2022 vs. 3up 3down 15u Red
Runs: 3 Jan 15, 2023 vs. 3n2 Sticks Baseball 16U National Team
Hits: 3 Dec 11, 2022 vs. Kachi
RBI's: 2 Sep 09, 2023 vs. Canyon Thunder 2024
Doubles: 2 Jul 19, 2023 vs. Florida Burn 2025 Scout Team
Triples: 1 Sep 09, 2023 vs. Marucci Athletics 2024 Orange
Total bases: 4 Jul 19, 2023 vs. Florida Burn 2025 Scout Team
Walks: 3 Sep 09, 2023 vs. Canyon Thunder 2024
SAC bunts: 1 Dec 19, 2020 vs. Elite Squad-Beno
SAC flies: 1 Jul 18, 2023 vs. Fl Dodgers 2025 Scout Team
Stolen bases: 2 Oct 01, 2023 vs. Team Boston Academy
Hit by pitch: 2 Feb 29, 2020 vs. Florida Heat Baseball
PITCHING STATSLAST OCCURRENCE
Inn. pitched: 6.0 Jul 10, 2022 vs. Florida Warriors
Runs allowed: 0 Jan 28, 2024 vs. VSA Red Sox Scout Team - Grey
Earned runs: 0 Jan 28, 2024 vs. VSA Red Sox Scout Team - Grey
Hits allowed: 0 Jan 28, 2024 vs. VSA Red Sox Scout Team - Grey
Strikeouts: 7 Jul 10, 2022 vs. Florida Warriors
Walks allowed: 0 Jan 28, 2024 vs. VSA Red Sox Scout Team - Grey
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