Prep Baseball Report
Isaac Gertzen
Isaac Gertzen
Isaac Gertzen

CLASS OF 2028

SS
RHP

Isaac
Gertzen

Chesterton Senior (HS) • IN
6' 0" • 192LBS
R/R • 15yr 8mo
Travel Team: 5 Star Great Lakes 2028

Rankings

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
Comments
Contact

Best Of Stats

Hitting
19.4
Hand Speed (max)
2/08/26
74.9
Bat Speed (max)
2/08/26
23
Rot. Acc (max)
2/27/26
50
Hard Hit %
2/08/26
Power
96.7
Exit Velocity (max)
2/08/26
84.9
Exit Velocity (avg)
2/08/26
326
Distance (max)
7/08/25
67
Sweet Spot %
2/08/26
Run
7.09
60-yd
2/27/26
4.12
30-yd
2/08/26
1.76
10-yd
2/08/26
18.3
Run speed (max)
2/08/26
Defense
81
INF Velo
2/27/26
-
OF Velo
-
C Velo
-
Pop Time
Pitching

Fastball

80
Velocity (max)
2/27/26
77.1 - 79.1
Velo Range
2/27/26
1763
Spin Rate (avg)
2/27/26

Changeup

74 - 77
Velo Range
2/27/26
1581
Spin Rate (avg)
2/27/26

Curveball

70 - 73
Velo Range
2/27/26
1753
Spin Rate (avg)
2/27/26

Slider

72 - 74
Velo Range
2/27/26
1841
Spin Rate (avg)
2/27/26

Positional Tools

2026
2025
60 Yard Dash
7.47
Infield Velocity
81.0
Power / Speed Score
12.9
60 Yard Dash
7.93
Infield Velocity
72.0
Power / Speed Score
11.5
O'Hare Preseason ID
Feb 8, 2026
Position
7.47
60-yard
79
INF Velo
97
Exit Velo
Great Lakes Summer I.D.
Jul 8, 2025
Position
7.93
60-yard
72
INF Velo
Power Speed Score

Hitting

2026
2025
Exit Velocity Max
96.7
Exit Velocity Avg
81.0
Distance Max
311
Distance Avg
195
Launch Angle Avg
20.9784
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
91.3
Exit Velocity Avg
83.1
Distance Max
326
Distance Avg
189
Launch Angle Avg
15.5062
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Great Lakes Preseason ID
Feb 27, 2026
Trackman - Hitting
94.1
Exit Velocity (max)
76.7
Exit Velocity (avg)
233
Distance (avg)
311
Distance (max)
Hard Hit %
Sweet Spot %
Fly Ball %
Ground Ball %
O'Hare Preseason ID
Feb 8, 2026
Trackman - Hitting
96.7
Exit Velocity (max)
84.9
Exit Velocity (avg)
160
Distance (avg)
296
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Great Lakes Summer I.D.
Jul 8, 2025
Trackman - Hitting
91.3
Exit Velocity (max)
83.1
Exit Velocity (avg)
189
Distance (avg)
326
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %

Hitting

2026
Hand Speed Max
19.4
Hand Speed Avg
18.4
Bat Speed Max
74.9
Bat Speed Avg
64.7
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Great Lakes Preseason ID
Feb 27, 2026
Blast - Hitting
19.0
Hand Speed (max)
18.3
Hand Speed (avg)
66.7
Bat Speed (max)
61.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
O'Hare Preseason ID
Feb 8, 2026
Blast - Hitting
19.4
Hand Speed (max)
18.9
Hand Speed (avg)
74.9
Bat Speed (max)
72.3
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency

Pitching

2026
2025
Fastball
Velocity Max
79.7
Fastball
Velocity Avg
78.1
Fastball
Spin Rate Avg
1763
Fastball
Spin Score Avg
22.6
Fastball
Total Movement Avg
Curveball
Velocity Avg
71.3
Curveball
Spin Rate Avg
1753
Curveball
Total Movement Avg
Changeup
Velocity Avg
75.1
Changeup
Spin Rate Avg
1581
Changeup
Total Movement Avg
Slider
Velocity Avg
73.0
Slider
Spin Rate Avg
1841
Slider
Total Movement Avg
Fastball
Velocity Max
72.9
Fastball
Velocity Avg
70.7
Fastball
Spin Rate Avg
1693
Fastball
Spin Score Avg
24.0
Fastball
Total Movement Avg
Curveball
Velocity Avg
61.6
Curveball
Spin Rate Avg
1627
Curveball
Total Movement Avg
Changeup
Velocity Avg
65.3
Changeup
Spin Rate Avg
1483
Changeup
Total Movement Avg
Slider
Velocity Avg
62.2
Slider
Spin Rate Avg
1587
Slider
Total Movement Avg
Great Lakes Preseason ID
Feb 27, 2026
Trackman - Fastball
79.7
Velocity (max)
77.1 - 79.1
Velo Range
78.2
Eff Velocity (avg)
1,895
Spin Rate (max)
1,763
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
72.8
Velocity (max)
69.9 - 72.8
Velo Range
69.2
Eff Velocity (avg)
1,806
Spin Rate (max)
1,753
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Slider
73.9
Velocity (max)
72.0 - 73.9
Velo Range
71.8
Eff Velocity (avg)
1,900
Spin Rate (max)
1,841
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
77.1
Velocity (max)
73.7 - 76.7
Velo Range
74.4
Eff Velocity (avg)
1,695
Spin Rate (max)
1,581
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Great Lakes Summer I.D.
Jul 8, 2025
Trackman - Fastball
72.9
Velocity (max)
69.2 - 72.1
Velo Range
69.3
Eff Velocity (avg)
1,764
Spin Rate (max)
1,693
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
62.4
Velocity (max)
61.0 - 62.3
Velo Range
59.0
Eff Velocity (avg)
1,668
Spin Rate (max)
1,627
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Trackman - Slider
63.7
Velocity (max)
60.8 - 63.6
Velo Range
59.9
Eff Velocity (avg)
1,667
Spin Rate (max)
1,587
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
66.8
Velocity (max)
64.3 - 66.5
Velo Range
63.7
Eff Velocity (avg)
1,525
Spin Rate (max)
1,483
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)

Pitch Scores

2025
Fastball
Hop+
Fastball
Sink+
Fastball
Rise+
Curveball
Hammer+
Curveball
Sweep+
Slider
Hammer+
Slider
Sweep+
Great Lakes Summer I.D.
Jul 8, 2025
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+

Pitching Velos

2026
2025
Fastball
Velocity Max
80.0
Fastball
Velocity Avg
78.0
Curveball
Velocity Avg
71.5
Changeup
Velocity Avg
75.5
Slider
Velocity Avg
73.0
Fastball
Velocity Max
73.0
Fastball
Velocity Avg
70.5
Curveball
Velocity Avg
61.5
Changeup
Velocity Avg
65.5
Slider
Velocity Avg
62.5
Great Lakes Preseason ID
Feb 27, 2026
Pitching
80
Max FB
77 - 79
FB
70 - 73
CB
74 - 77
CH
72 - 74
SL
Great Lakes Summer I.D.
Jul 8, 2025
Pitching
73
Max FB
69 - 72
FB
61 - 62
CB
64 - 67
CH
61 - 64
SL

Game Performance

2026
10 Yard Dash
1.76
30 Yard Dash
4.12
60 Yard Dash
7.09
Top Speed (MPH)
RSI
Vertical Jump
O'Hare Preseason ID
Feb 8, 2026
Vald
1.76
10-yd
4.12
30-yd
7.47
60-yd
18.3
Run speed (max)
1.55
RSI (max)
23.6
Jump Height (max)

Vizual Edge

2026
2025
Edge Score
67.79
Edge Score
61.78
O'Hare Preseason ID
Feb 8, 2026
Visual Skills
67.79
Edge Score
Great Lakes Summer I.D.
Jul 8, 2025
Visual Skills
61.78
Edge Score

Pitch Ai

Notes

News

Comments

7/08/25
Isaac Gertzen, Chesterton Senior High School (IN), 2028
Positional Profile: SS/RHP
Body: 5-11, 170-pounds.
Hit: RHH
Power: 91 max exit velocity, averaged 83.1 mph. 326' max distance.
Arm: RH. INF-72 mph.
ATH: 7.93 runner in the 60.
Vizual Edge: 61.78 Edge Score

Draft Reports

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Physical

2026
Grip Strgth (LH)
Grip Strgth (RH)
O'Hare Preseason ID
Feb 8, 2026
Physical - Athlete
6' 0"
Ht
192.0
Wt
Body Fat %
SMM
Grip Strgth (RH)
Grip Strgth (LH)