Prep Baseball Report
Mason Klimek
Mason Klimek

CLASS OF 2028

OF
LHP

Mason
Klimek

Cary-Grove (HS) • IL
5' 11" • 163.1LBS
L/L • 16yr 3mo
Travel Team: GRB Rays Illinois
2028 National

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2028 State

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Best of Snapshot
Physical
Positional Tools Velos / Pop
TrackMan Hitting
Blast
TrackMan Pitching
Pitch Scores
Pitching Velos
VALD
Vizual Edge
News
Comments
Contact

Best Of Stats

Hitting
21.9
Hand Speed (max)
2/14/26
69.8
Bat Speed (max)
2/14/26
16.9
Rot. Acc (max)
2/14/26
10
Hard Hit %
2/14/26
Power
92.9
Exit Velocity (max)
2/14/26
83.3
Exit Velocity (avg)
2/15/25
291
Distance (max)
2/15/25
75
Sweet Spot %
2/15/25
Run
-
60-yd
4.11
30-yd
2/14/26
1.74
10-yd
2/15/25
-
Run speed (max)
Defense
-
INF Velo
85
OF Velo
2/14/26
-
C Velo
-
Pop Time
Pitching

Fastball

83
Velocity (max)
2/14/26
81.4 - 82.5
Velo Range
2/14/26
1911
Spin Rate (avg)
2/14/26

Changeup

75.4 - 76.1
Velo Range
2/14/26
1280
Spin Rate (avg)
2/14/26

Curveball

69.8 - 71.2
Velo Range
2/14/26
2119
Spin Rate (avg)
2/14/26

Positional Tools

2026
2025
Outfield Velocity
85.0
Outfield Velocity
78.0
McHenry Preseason ID
Feb 14, 2026
Position
85
OF Velo
93
Exit Velo
McHenry Preseason ID
Feb 15, 2025
Position
4.19
30-yd
78
OF Velo
89
Exit Velo

Hitting

2026
2025
Exit Velocity Max
92.9
Exit Velocity Avg
81.7
Distance Max
255
Distance Avg
62
Launch Angle Avg
2.2302
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
88.8
Exit Velocity Avg
83.3
Distance Max
291
Distance Avg
182
Launch Angle Avg
12.1319
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
McHenry Preseason ID
Feb 14, 2026
Trackman - Hitting
92.9
Exit Velocity (max)
81.7
Exit Velocity (avg)
62
Distance (avg)
255
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
McHenry Preseason ID
Feb 15, 2025
Trackman - Hitting
88.8
Exit Velocity (max)
83.3
Exit Velocity (avg)
182
Distance (avg)
291
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %

Hitting

2026
2025
Hand Speed Max
21.9
Hand Speed Avg
21.0
Bat Speed Max
69.8
Bat Speed Avg
67.8
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
20.2
Hand Speed Avg
19.2
Bat Speed Max
67.6
Bat Speed Avg
64.0
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
McHenry Preseason ID
Feb 14, 2026
Blast - Hitting
21.9
Hand Speed (max)
21.0
Hand Speed (avg)
69.8
Bat Speed (max)
67.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
McHenry Preseason ID
Feb 15, 2025
Blast - Hitting
20.2
Hand Speed (max)
19.2
Hand Speed (avg)
67.6
Bat Speed (max)
64.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency

Pitching

2026
2025
Fastball
Velocity Max
83.0
Fastball
Velocity Avg
81.9
Fastball
Spin Rate Avg
1911
Fastball
Spin Score Avg
23.3
Fastball
Total Movement Avg
Curveball
Velocity Avg
70.5
Curveball
Spin Rate Avg
2119
Curveball
Total Movement Avg
Changeup
Velocity Avg
75.7
Changeup
Spin Rate Avg
1280
Changeup
Total Movement Avg
Fastball
Velocity Max
73.1
Fastball
Velocity Avg
72.5
Fastball
Spin Rate Avg
1761
Fastball
Spin Score Avg
24.3
Fastball
Total Movement Avg
Curveball
Velocity Avg
66.3
Curveball
Spin Rate Avg
1894
Curveball
Total Movement Avg
Changeup
Velocity Avg
65.4
Changeup
Spin Rate Avg
1277
Changeup
Total Movement Avg
McHenry Preseason ID
Feb 14, 2026
Trackman - Fastball
83.0
Velocity (max)
81.4 - 82.5
Velo Range
80.7
Eff Velocity (avg)
2,002
Spin Rate (max)
1,911
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
71.3
Velocity (max)
69.8 - 71.2
Velo Range
68.5
Eff Velocity (avg)
2,222
Spin Rate (max)
2,119
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - ChangeUp
76.1
Velocity (max)
75.4 - 76.1
Velo Range
74.7
Eff Velocity (avg)
1,330
Spin Rate (max)
1,280
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
McHenry Preseason ID
Feb 15, 2025
Trackman - Fastball
73.1
Velocity (max)
72.0 - 73.0
Velo Range
72.0
Eff Velocity (avg)
1,821
Spin Rate (max)
1,761
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Curveball
67.2
Velocity (max)
65.3 - 67.2
Velo Range
65.0
Eff Velocity (avg)
1,929
Spin Rate (max)
1,894
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
67.3
Velocity (max)
63.8 - 67.0
Velo Range
64.8
Eff Velocity (avg)
1,435
Spin Rate (max)
1,277
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)

Pitch Scores

2026
2025
Fastball
Hop+
Fastball
Sink+
Fastball
Rise+
Curveball
Hammer+
Curveball
Sweep+
Fastball
Rise+
Curveball
Hammer+
Curveball
Sweep+
McHenry Preseason ID
Feb 14, 2026
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
McHenry Preseason ID
Feb 15, 2025
Pitch Scores - Fastball
Rise+
Pitch Scores - Curveball
Hammer+
Sweep+

Pitching Velos

2026
2025
Fastball
Velocity Max
83.0
Fastball
Velocity Avg
81.5
Curveball
Velocity Avg
70.5
Changeup
Velocity Avg
75.5
Fastball
Velocity Max
73.0
Fastball
Velocity Avg
72.5
Curveball
Velocity Avg
66.0
Changeup
Velocity Avg
65.5
McHenry Preseason ID
Feb 14, 2026
Pitching
83
Max FB
81 - 82
FB
70 - 71
CB
75 - 76
CH
McHenry Preseason ID
Feb 15, 2025
Pitching
73
Max FB
72 - 73
FB
65 - 67
CB
64 - 67
CH

Game Performance

2026
2025
10 Yard Dash
1.78
30 Yard Dash
4.11
RSI
Vertical Jump
10 Yard Dash
1.74
30 Yard Dash
4.19
RSI
Vertical Jump
McHenry Preseason ID
Feb 14, 2026
Vald
1.78
10-yd
4.11
30-yd
1.29
RSI (max)
23.4
Jump Height (max)
McHenry Preseason ID
Feb 15, 2025
Vald
1.74
10-yd
4.19
30-yd
1.44
RSI (max)
18.0
Jump Height (max)

Vizual Edge

2026
2025
Edge Score
79.25
Edge Score
73.95
McHenry Preseason ID
Feb 14, 2026
Visual Skills
79.25
Edge Score
McHenry Preseason ID
Feb 15, 2025
Visual Skills
73.95
Edge Score

Pitch Ai

Notes

Comments

2/16/26
OF Mason Klimek (Cary-Grove, 2028) is an incoming-sophomore that had a quality showing on both sides of the ball. Standing at 5-foot-11, 163-pounds with wiry strength and more room to continue to add strength. At the plate the left-handed hitter took an upside round, flashing feel to drive the ball through the middle of the field reaching a peak EV of 92.9 mph during his round. Defensively, he had clean actions in the outfield, while playing through the ball, and showing a quick release and above-average arm that worked up to 85 mph.
2/19/25

OF Mason Klimek (Cary-Grove, 2028) will be a name to follow moving forward after a strong all-around showing. At the plate he has an easy and simple swing, working through the zone with a flatter path and a line-drive approach up the middle, T89 mph EV. Defensively, Klimek is an aggressive outfielder who attacks the ball, paired with a steady and reliable glove that fields the ball out front, while utilizing a quick arm.

2/15/25

Positional Profile: OF/LHP
Body: 5-9, 135-pounds.
Delivery: Stretch only, high leg-lift with a slight tilt, holds pre-bend in the back knee down the mound, work in-line.
Arm Action: LH. Long and loose arm swing, 3/4 release.
FB: T73, 72-73 mph. Displays slight arm side run. T1821, 1761 average rpm.
CB: 65-67 mph. Late 12/6 break with feel. T1929, 1894 average rpm.
CH: 64-67 mph. Easy out of hand.  T1435, 1277 average rpm.

2/15/25

Positional Profile: OF/LHP
Body: 5-9, 135 pounds.
Hit: LHH. Loose with a gradual load on back side, strides during load. Easy and simple swing, works through the zone with a flatter path, up the middle approach with lime-drives.  64 mph bat speed with 9g of rotational acceleration.
Power: 89 mph max exit velocity (83.3 avg.); 291-foot max batted distance.
Arm: LH. OF - 78 mph. High 3/4 slot, quick arm action.
Defense: Attacks the ball, fields off front foot, short shuffle step to target.
Athletic Testing: 4.19 runner in the 30-yard dash; 18.00-inch max vertical jump.
Vizual Edge: 73.95 Edge Score.

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Physical

2026
2025
Grip Strgth (LH)
Grip Strgth (RH)
Grip Strgth (LH)
Grip Strgth (RH)
McHenry Preseason ID
Feb 14, 2026
Physical - Athlete
5' 11"
Ht
163.1
Wt
Body Fat %
SMM
Grip Strgth (RH)
Grip Strgth (LH)
McHenry Preseason ID
Feb 15, 2025
Physical - Athlete
5' 8"
Ht
146.8
Wt
Body Fat %
SMM
Grip Strgth (RH)
Grip Strgth (LH)