Prep Baseball Report

CLASS OF 2027

OF
RHP

Zack
Ziemke

St. John's Jesuit (HS) • OH
6' 0" • 155LBS
R/R • 15yr 7mo
Travel Team: Demand Command

Rankings

2027 National

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2027 State

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Best of Snapshot
Positional Tools Velos / Pop
TrackMan Hitting
Blast
TrackMan Pitching
Pitch Scores
Pitching Velos
Swift
News
Comments
Contact

Best Of Stats

Hitting
19.3
Hand Speed (max)
6/27/23
63.7
Bat Speed (max)
6/27/23
12.1
Rot. Acc (max)
1/28/24
-
Hard Hit %
Power
81.5
Exit Velocity (max)
6/27/23
70.1
Exit Velocity (avg)
1/28/24
255
Distance (max)
1/28/24
64
Sweet Spot %
1/28/24
Run
7.58
60
1/28/24
-
30-yd
-
10-yd
16.2
Run speed (max)
1/28/24
Defense
-
INF Velo
79
OF Velo
1/28/24
-
C Velo
-
Pop Time
Pitching

Fastball

77.5
Velocity (max)
1/28/24
75 - 77
Velo Range
1/28/24
1899
Spin Rate (avg)
6/27/23

Changeup

68.2 - 70.1
Velo Range
1/28/24
1662
Spin Rate (avg)
6/27/23

Curveball

62.6 - 66.2
Velo Range
1/28/24
1898
Spin Rate (avg)
1/28/24

Positional Tools

2024
2023
Outfield Velocity
79.0
60 Yard Dash
7.67
Outfield Velocity
78.0
Power / Speed Score
10.6
Scout Day: Demand Command 1.28.24
Jan 28, 2024
Position
79
OF Velo
Power Speed Score
2023 Ohio Future 50 (Invite Only)
Jun 27, 2023
Position
7.67
60-yard
78
OF Velo
Power Speed Score

Hitting

2024
2023
Exit Velocity Max
80.0
Exit Velocity Avg
70.1
Distance Max
255
Distance Avg
181
Launch Angle Avg
26.3
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
81.5
Exit Velocity Avg
68.2
Distance Max
250
Distance Avg
116
Launch Angle Avg
10.6
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Scout Day: Demand Command 1.28.24
Jan 28, 2024
Trackman - Hitting
80.0
Exit Velocity (max)
70.1
Exit Velocity (avg)
181
Distance (avg)
255
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2023 Ohio Future 50 (Invite Only)
Jun 27, 2023
Trackman - Hitting
81.5
Exit Velocity (max)
68.2
Exit Velocity (avg)
116
Distance (avg)
250
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %

Hitting

2024
2023
Hand Speed Max
18.2
Hand Speed Avg
17.3
Bat Speed Max
58.1
Bat Speed Avg
56.1
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
19.3
Hand Speed Avg
17.8
Bat Speed Max
63.7
Bat Speed Avg
58.6
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Scout Day: Demand Command 1.28.24
Jan 28, 2024
Blast - Hitting
18.2
Hand Speed (max)
17.3
Hand Speed (avg)
58.1
Bat Speed (max)
56.1
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2023 Ohio Future 50 (Invite Only)
Jun 27, 2023
Blast - Hitting
19.3
Hand Speed (max)
17.8
Hand Speed (avg)
63.7
Bat Speed (max)
58.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency

Pitching

2024
2023
Fastball
Velocity Max
77.5
Fastball
Velocity Avg
76.0
Fastball
Spin Rate Avg
1821
Fastball
Spin Score Avg
24.0
Fastball
Total Movement Avg
Curveball
Velocity Avg
64.4
Curveball
Spin Rate Avg
1898
Curveball
Total Movement Avg
Changeup
Velocity Avg
69.1
Changeup
Spin Rate Avg
1515
Changeup
Total Movement Avg
Fastball
Velocity Max
74.6
Fastball
Velocity Avg
71.3
Fastball
Spin Rate Avg
1899
Fastball
Spin Score Avg
26.6
Fastball
Total Movement Avg
Curveball
Velocity Avg
59.2
Curveball
Spin Rate Avg
1830
Curveball
Total Movement Avg
Changeup
Velocity Avg
63.3
Changeup
Spin Rate Avg
1662
Changeup
Total Movement Avg
Scout Day: Demand Command 1.28.24
Jan 28, 2024
Trackman - Fastball
77.5
Velocity (max)
75.0 - 77.0
Velo Range
75.4
Eff Velocity (avg)
1,916
Spin Rate (max)
1,821
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
66.7
Velocity (max)
62.6 - 66.2
Velo Range
62.7
Eff Velocity (avg)
1,999
Spin Rate (max)
1,898
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
70.2
Velocity (max)
68.2 - 70.1
Velo Range
69.0
Eff Velocity (avg)
1,545
Spin Rate (max)
1,515
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2023 Ohio Future 50 (Invite Only)
Jun 27, 2023
Trackman - Fastball
74.6
Velocity (max)
70.3 - 72.4
Velo Range
68.7
Eff Velocity (avg)
2,014
Spin Rate (max)
1,899
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
61.3
Velocity (max)
57.7 - 60.7
Velo Range
56.2
Eff Velocity (avg)
1,952
Spin Rate (max)
1,830
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
65.4
Velocity (max)
62.0 - 64.8
Velo Range
60.2
Eff Velocity (avg)
1,786
Spin Rate (max)
1,662
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

2024
Fastball
Rise+
Curveball
Hammer+
Curveball
Sweep+
Scout Day: Demand Command 1.28.24
Jan 28, 2024
Pitch Scores - Fastball
Rise+
Pitch Scores - Curveball
Hammer+
Sweep+

Pitching Velos

2023
Fastball
Velocity Max
72.0
Fastball
Velocity Avg
70.0

Game Performance

2024
60 Yard Dash
7.58
Top Speed (MPH)
Scout Day: Demand Command 1.28.24
Jan 28, 2024
Swift
7.58
60-yd
16.2
Run speed (max)

Visual Edge

Pitch Ai

Notes

Comments

1/28/24

Zack Ziemke: OF/RHP, (2027) St. John's Jesuit, OH. 6-foot, 155-pound. (56.1 mph bat speed average). (17.3 mph hand speed average). Began in a balanced wide stance with a controlled load, then used a small controlled stride. Bat speed was developing, used an uphill swing plane and high good extension on his finish. In his round he found multiple barrels. Gap to gap approach. From the outfield, he made throws to the infield at velocities up to 79 mph. Projectable on the mound, showed good arm speed, he had a consistent quick arm action and a high ¾ arm angle. Drop-and-drive type pitcher and shows easy effort. He has in line shoulders and an athletic strong balance point. Lands square with an athletic finish.  (Max spin 1916; Avg 1821). 


6/27/23

Zack Ziemke: OF/RHP, (2027) St. John's Jesuit, OH. 5-foot-11, 135-pound. (58.6 mph bat speed average). (17.8 mph hand speed average). Started in a tall stance with a smooth load, then used a short stride. Had developing bat speed, level swing plane and good extension on his finish. Up the middle opposite field approach. In the outfield, his best throws to the infield topped out at 78 mph. During the event, ran the 60-yard dash in 7.67. Athletic on the mound, had a high ¾ arm angle and a loose long arm action with good developing arm speed. Drop-and-drive type pitcher who shows easy effort. Has downhill shoulder with a tall consistent balance point. Lands square with balanced an athletic finish.  (Max spin 2014; Avg 1898).

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