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Mark Williams
2028 GRAD
 |  SS/MIF, OF, UT
 |  Naperville, IL
UNCOMMITTED
COLLEGE INTERESTS
Best PG Grade
7
ABOUT PG GRADES
Naperville Central
HIGH SCHOOL
5-11
  150
HEIGHT/WEIGHT
S/R
BATS/THROWS
16 and 4 mos
AGE
PG EVENT RESULTS
83 mph
FB VELO
7/10/2025
7.74 sec
60 YARD DASH
8/12/2023
1.82 sec
10 YARD SPLIT
8/12/2023
5.42 sec
40 YARD DASH
7/30/2022
68 mph
OF VELO
8/12/2023
69 mph
IF VELO
8/12/2023
72 mph
EXIT VELO
8/12/2023

LATEST PG SHOWCASE REPORT
2023 13U/14U Great Lakes Prospect Showcase  
Mark Williams is a 2028 SS/MIF, OF, UT with a 5-7 115 lb. frame from Naperville, IL who attends Naperville Central. Medium size, slender frame. Ran a 7.74 60-yard dash. Versatile infielder/outfielder that projects with fundamentals, getting to an athletic fielding position, working through the baseball and showing an accurate throwing arm. Switch-hitter hit from a mirrored slightly open stance, bat waggles, high back elbow and will pull off the baseball some. Showed a pull side approach with at times a well connected swing to backside rotation and the ability to impact the baseball.

PG CAREER PROGRESSION
+18 MPH
FB Velo since 06/10/2022
-0.07 SEC
10 Yard Split since 08/20/2022
-0.25 SEC
60 Time since 08/20/2022
+1 MPH
OF Velo since 08/20/2022
+7 MPH
IF Velo since 07/30/2022
+5 MPH
Exit Velo since 08/20/2022
+5.69 MPH
Max Barrel Speed since 08/20/2022
+1.90
Impact Momentum since 08/20/2022
+10.60 Gs
Max Acceleration since 08/20/2022
+15 %
Swing Efficiency since 08/20/2022
Best PG Grade: 7
PERCENTILE RANKINGS
CLASS OF2028 in the recorded year
CATEGORY TOP RESULT CLASS AVG PERCENTILE
FB 83 mph 71 mph
94.70%
60 7.74 sec 7.76 sec
44.58%
10 SPL 1.82 sec 1.78 sec
34.50%
40 5.42 sec 5.73 sec
66.81%
OF 68 mph 74 mph
22.32%
IF 69 mph 72 mph
34.29%
CATEGORIES TOP RESULT CLASS AVG PERCENTILE
Exit Velo 72 mph 76 mph
31.13%
2023 13U/14U Great Lakes Prospect Showcase
Left Handed Hitting
Swing Efficiency™
53%
Exit Velo
72mph
Swing Sequence
The order in which each body segment reaches its peak speed
#1 Arm
#2 Pelvis
#3 Torso
#4 Hand
2022 13U/14U Great Lakes Prospect Showcase
Right Handed Hitting
Swing Efficiency™
76%
Exit Velo
67mph
Swing Sequence
The order in which each body segment reaches its peak speed
#1 Pelvis
#2 Arm
#3 Torso
#4 Hand
2022 13U/14U Great Lakes Prospect Showcase
Left Handed Hitting
Swing Efficiency™
61%
Exit Velo
60mph
Swing Sequence
The order in which each body segment reaches its peak speed
#1 Pelvis
#2 Arm
#3 Hand
#4 Torso

CATEGORY TOP RESULT CLASS AVG PERCENTILE
Max Barrel Speed 58.343 mph 60.14 mph
41.01%
Impact Momentum 21.054 22.06
36.05%
Max Acceleration 32.448 g's 30.04 g's
66.74%
BEST SINGLE GAME STATS
BATTING STATSLAST OCCURRENCE
At bats: 4 May 12, 2019 vs. Rawlings Southeast 9u
Runs: 2 Jul 12, 2025 vs. Rhino Godfrey
Hits: 3 Jun 25, 2022 vs. Team Georgia Scout Team
RBI's: 2 May 18, 2024 vs. Forceout
Doubles: 1 Apr 20, 2024 vs. Canes-Matz
Triples: 2 Jun 25, 2022 vs. Team Georgia Scout Team
Total bases: 7 Jun 25, 2022 vs. Team Georgia Scout Team
Walks: 2 Jun 21, 2021 vs. Beaver Valley 11U Red
SAC bunts: 1 Jun 12, 2022 vs. UA STL Prospects
SAC flies: 1 May 18, 2024 vs. Forceout
Stolen bases: 2 Jul 13, 2025 vs. GRB Rays Illinois Yellow
PITCHING STATSLAST OCCURRENCE
Inn. pitched: 3.0 May 06, 2023 vs. Iowa Sticks Black
Runs allowed: 0 Jul 13, 2025 vs. GRB Rays Illinois Yellow
Earned runs: 0 Jul 13, 2025 vs. GRB Rays Illinois Yellow
Hits allowed: 0 Jul 13, 2025 vs. GRB Rays Illinois Yellow
Strikeouts: 5 Jul 13, 2025 vs. GRB Rays Illinois Yellow
Walks allowed: 0 Apr 21, 2024 vs. Jackson Tribe