Prep Baseball Report

CLASS OF 2026

1B
LHP

Aaron
Theiss

Mercyhurst Prep (HS) • PA
5' 7" • 200LBS
R/L • 16yr 1mo
Travel Team: Erie Steelheads 15U Fraschetti
2026 National

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2026 State

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

Best Of Stats

Hitting
18.6
Hand Speed (max)
2/05/23
60.1
Bat Speed (max)
3/12/23
12.2
Rot. Acc (max)
6/22/21
-
Hard Hit %
Power
80.2
Exit Velocity (max)
2/05/23
59.8
Exit Velocity (avg)
2/05/23
250
Distance (max)
3/12/23
63
Sweet Spot %
3/14/21
Run
9.91
60
3/12/23
5.54
30-yd
6/21/22
2.37
10-yd
6/21/22
12.9
Run speed (max)
6/21/22
Defense
63
INF Velo
2/05/23
-
OF Velo
-
C Velo
-
Pop Time
Pitching

Fastball

65.6
Velocity (max)
2/05/23
64 - 65.5
Velo Range
2/05/23
1574
Spin Rate (avg)
2/05/23

Changeup

59.7 - 60.1
Velo Range
3/12/23
1305
Spin Rate (avg)
3/12/23

Curveball

57 - 59.5
Velo Range
2/05/23
1816
Spin Rate (avg)
3/12/23

Slider

57 - 60.1
Velo Range
3/12/23
1756
Spin Rate (avg)
3/12/23

Positional Tools

2023
2022
2021
Infield Velocity
63.0
60 Yard Dash
11.07
Infield Velocity
58.0
Power / Speed Score
6.7
60 Yard Dash
10.66
Infield Velocity
54.0
Power / Speed Score
6.1
2023 Erie Steelheads Scout Day
Mar 12, 2023
Position
62
INF Velo
Power Speed Score
2023 Preseason ID: Northwest
Feb 5, 2023
Position
63
INF Velo
Power Speed Score
2022 Northeast Rising Stars
Mar 12, 2022
Position
11.07
60-yard
58
INF Velo
Power Speed Score
2021 JR PA State Games
Jun 22, 2021
Position
11.13
60-yard
49
INF Velo
65
Exit Velo
Power Speed Score
2021 JR PA State Games Trials - West
Mar 14, 2021
Position
10.66
60-yard
54
INF Velo
61
Exit Velo
Power Speed Score

Hitting

2023
2022
2021
Exit Velocity Max
80.2
Exit Velocity Avg
57.6
Distance Max
250
Distance Avg
105
Launch Angle Avg
19.7
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
73.6
Exit Velocity Avg
58.6
Distance Max
224
Distance Avg
102
Launch Angle Avg
21.5
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Exit Velocity Max
64.7
Exit Velocity Avg
56.5
Distance Max
193
Distance Avg
108
Launch Angle Avg
24.4
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2023 Erie Steelheads Scout Day
Mar 12, 2023
Trackman - Hitting
70.9
Exit Velocity (max)
56.3
Exit Velocity (avg)
128
Distance (avg)
250
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2023 Preseason ID: Northwest
Feb 5, 2023
Trackman - Hitting
80.2
Exit Velocity (max)
59.8
Exit Velocity (avg)
64
Distance (avg)
101
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2022 JR PA State Games
Jun 21, 2022
Trackman - Hitting
71.7
Exit Velocity (max)
57.6
Exit Velocity (avg)
123
Distance (avg)
224
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2022 Northeast Rising Stars
Mar 12, 2022
Trackman - Hitting
73.6
Exit Velocity (max)
59.1
Exit Velocity (avg)
92
Distance (avg)
222
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2021 JR PA State Games
Jun 22, 2021
Trackman - Hitting
64.7
Exit Velocity (max)
56.7
Exit Velocity (avg)
108
Distance (avg)
193
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2021 JR PA State Games Trials - West
Mar 14, 2021
Trackman - Hitting
61.4
Exit Velocity (max)
56.3
Exit Velocity (avg)
108
Distance (avg)
168
Distance (max)
Sweet Spot %
Line Drive %
Ground Ball %

Hitting

2023
2022
2021
Hand Speed Max
18.6
Hand Speed Avg
16.4
Bat Speed Max
60.1
Bat Speed Avg
56.2
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
16.9
Hand Speed Avg
15.8
Bat Speed Max
58.8
Bat Speed Avg
55.4
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
Hand Speed Max
17.6
Hand Speed Avg
14.1
Bat Speed Max
50.3
Bat Speed Avg
48.1
Rotational Acceleration Max
Rotational Acceleration Avg
On-Plane Efficiency Max
On-Plane Efficiency Avg
2023 Erie Steelheads Scout Day
Mar 12, 2023
Blast - Hitting
16.8
Hand Speed (max)
15.4
Hand Speed (avg)
60.1
Bat Speed (max)
55.2
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2023 Preseason ID: Northwest
Feb 5, 2023
Blast - Hitting
18.6
Hand Speed (max)
17.9
Hand Speed (avg)
60.1
Bat Speed (max)
57.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2022 JR PA State Games
Jun 21, 2022
Blast - Hitting
16.9
Hand Speed (max)
16.2
Hand Speed (avg)
58.8
Bat Speed (max)
56.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2022 Northeast Rising Stars
Mar 12, 2022
Blast - Hitting
16.0
Hand Speed (max)
15.5
Hand Speed (avg)
58.1
Bat Speed (max)
54.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2021 JR PA State Games
Jun 22, 2021
Blast - Hitting
17.6
Hand Speed (max)
15.0
Hand Speed (avg)
49.9
Bat Speed (max)
48.4
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2021 JR PA State Games Trials - West
Mar 14, 2021
Blast - Hitting
14.8
Hand Speed (max)
13.3
Hand Speed (avg)
50.3
Bat Speed (max)
47.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency

Pitching

2023
2022
2021
Fastball
Velocity Max
65.6
Fastball
Velocity Avg
64.6
Fastball
Spin Rate Avg
1555
Fastball
Spin Score Avg
24.1
Fastball
Total Movement Avg
Curveball
Velocity Avg
56.2
Curveball
Spin Rate Avg
1762
Curveball
Total Movement Avg
Changeup
Velocity Avg
59.9
Changeup
Spin Rate Avg
1305
Changeup
Total Movement Avg
Slider
Velocity Avg
58.8
Slider
Spin Rate Avg
1756
Slider
Total Movement Avg
Fastball
Velocity Max
60.1
Fastball
Velocity Avg
57.8
Fastball
Spin Rate Avg
1532
Fastball
Spin Score Avg
26.5
Fastball
Total Movement Avg
Curveball
Velocity Avg
50.6
Curveball
Spin Rate Avg
1622
Curveball
Total Movement Avg
Fastball
Velocity Max
55.2
Fastball
Velocity Avg
53.6
Fastball
Spin Rate Avg
1378
Fastball
Spin Score Avg
25.7
Fastball
Total Movement Avg
Curveball
Velocity Avg
47.6
Curveball
Spin Rate Avg
1321
Curveball
Total Movement Avg
2023 Erie Steelheads Scout Day
Mar 12, 2023
Trackman - Fastball
65.3
Velocity (max)
64.0 - 64.9
Velo Range
61.8
Eff Velocity (avg)
1,649
Spin Rate (max)
1,533
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
53.8
Velocity (max)
52.0 - 53.8
Velo Range
49.5
Eff Velocity (avg)
1,878
Spin Rate (max)
1,816
Spin Rate (avg)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
60.1
Velocity (max)
57.0 - 60.1
Velo Range
55.8
Eff Velocity (avg)
1,795
Spin Rate (max)
1,756
Spin Rate (avg)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
60.1
Velocity (max)
59.7 - 60.1
Velo Range
57.1
Eff Velocity (avg)
1,319
Spin Rate (max)
1,305
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
2023 Preseason ID: Northwest
Feb 5, 2023
Trackman - Fastball
65.6
Velocity (max)
64.0 - 65.5
Velo Range
61.5
Eff Velocity (avg)
1,641
Spin Rate (max)
1,574
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - Curveball
60.5
Velocity (max)
57.0 - 59.5
Velo Range
55.2
Eff Velocity (avg)
1,872
Spin Rate (max)
1,729
Spin Rate (avg)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
2022 JR PA State Games
Jun 21, 2022
Trackman - Fastball
60.1
Velocity (max)
57.1 - 59.4
Velo Range
55.3
Eff Velocity (avg)
1,629
Spin Rate (max)
1,525
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
52.8
Velocity (max)
51.4 - 52.8
Velo Range
1,643
Spin Rate (max)
1,615
Spin Rate (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
2022 Northeast Rising Stars
Mar 12, 2022
Trackman - Fastball
58.7
Velocity (max)
55.5 - 57.9
Velo Range
54.0
Eff Velocity (avg)
1,617
Spin Rate (max)
1,553
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Curveball
52.0
Velocity (max)
47.4 - 51.9
Velo Range
44.4
Eff Velocity (avg)
1,658
Spin Rate (max)
1,629
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
2021 JR PA State Games Trials - West
Mar 14, 2021
Trackman - Fastball
55.2
Velocity (max)
52.7 - 54.5
Velo Range
51.4
Eff Velocity (avg)
1,450
Spin Rate (max)
1,378
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Trackman - Curveball
47.7
Velocity (max)
47.5 - 47.7
Velo Range
44.6
Eff Velocity (avg)
1,362
Spin Rate (max)
1,321
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)

Pitch Scores

2023
2021
Fastball
Rise+
Curveball
Hammer+
Curveball
Sweep+
Fastball
Rise+
2023 Preseason ID: Northwest
Feb 5, 2023
Pitch Scores - Fastball
Rise+
Pitch Scores - Curveball
Hammer+
Sweep+
2021 JR PA State Games Trials - West
Mar 14, 2021
Pitch Scores - Fastball
Rise+
Pitch Scores - Curveball
Hammer+
Sweep+

Pitching Velos

2021
Fastball
Velocity Max
55.0
Fastball
Velocity Avg
54.0
Curveball
Velocity Avg
47.5
2021 JR PA State Games Trials - West
Mar 14, 2021
Pitching
55
Max FB
53 - 55
FB
47 - 48
CB

Game Performance

2024
2023
2022
10 Yard Dash
2.37
30 Yard Dash
5.54
60 Yard Dash
9.91
Top Speed (MPH)
60 Yard Dash
9.91
Top Speed (MPH)
RSi
Vertical Jump
10 Yard Dash
2.37
30 Yard Dash
5.54
60 Yard Dash
10.39
Top Speed (MPH)
2023 Erie Steelheads Scout Day
Mar 12, 2023
Swift
9.91
60-yd
12.4
Run speed (max)
2023 Preseason ID: Northwest
Feb 5, 2023
Swift
9.91
60-yd
12.4
Run speed (max)
1.41
RSi (max)
1.41
RSi (avg)
925
Jump Power (max)
15.6
Jump Height (max)
15.0
Jump Height (avg)
2022 JR PA State Games
Jun 21, 2022
Swift
2.37
10-yd
5.54
30-yd
10.39
60-yd
12.9
Run speed (max)
5.8
Run Speed (avg)

Visual Edge

2023
2022
Edge Score
73.59
Edge Score
62.12

Pitch Ai

2022
Arm Speed
Arm Slot
Knee Extension Velo
Deception
Hip-Shoulder Separation
2023 Preseason ID: Northwest
Feb 5, 2023
ProPlayAI - Foot Plant
Elbow Flexion (avg)
Shoulder Abduction (avg)
Hip Shoulder Seperation (avg)
ProPlayAI - MER
External Rotation (avg)
Stride Length (avg)
Horizontal Abduction (avg)
ProPlayAI - Release
Arm Speed (max)
Arm Speed (avg)
Knee Extension Velocity (max)
Knee Extension Velocity (avg)
Knee Flexion (avg)
Arm Slot (avg)
Lateral Trunk Tilt (avg)
Arm Path (avg)
Deception (avg)
Torque (avg)
Efficiency (avg)
Sequencing (avg)
2022 JR PA State Games
Jun 21, 2022
ProPlayAI - Foot Plant
Elbow Flexion (avg)
Shoulder Abduction (avg)
Hip Shoulder Seperation (avg)
ProPlayAI - MER
External Rotation (avg)
Stride Length (avg)
Horizontal Abduction (avg)
ProPlayAI - Release
Arm Speed (max)
Arm Speed (avg)
Knee Extension Velocity (max)
Knee Extension Velocity (avg)
Knee Flexion (avg)
Arm Slot (avg)
Lateral Trunk Tilt (avg)
Arm Path (avg)
Deception (avg)
Torque (avg)
Efficiency (avg)
Sequencing (avg)

Notes

News

Comments

2/05/23

Physical: 5-foot-7, 200 pounds; Sturdy, full build. 9.91 runner in the 60.

Offensively: RHH. Even setup, with feet just outside his shoulders; upright bat position. Short take back with the hands with an up and down stride for timing. Stays behind the ball while showing an average effort from the legs. Showed a swing path that gets around the ball with a two handed finish.  More groundballs than line drives and flyballs with a peak exit velocity of 80 MPH via Trackman.

Defensively: Starts with a balanced setup; static during pre-pitch while sitting back. Hands are out in front with a delay in transfer. Short take back from a standard 3/4 arm slot.  INF - 63 MPH.

Pitching: Uses a center rubber setup while using a side step. Belt high leg drive with shoulders outside the hips. Has a short stride landing inline with the plate. Moderate arm swing while arm stays in line with 2B; standard 3/4 slot. Square to the plate with finish. FB: Peak velo of 66 MPH, while sitting 64-66 MPH; straight action. CB: 57-61 MPH; early action.


6/21/22

Physical: Compact, durable 5-foot-7, 170lb build. 10.39 runner in the 60-yard dash.

Offensively: RHH. Narrow, taller stance, as the barrel starts upright to begin. Utilized a simple lift-and-replace stride to initiate the swing through a flat, handsy path that opens up to the pull-side quickly. Recorded a T72 mph exit velocity via Trackman during BP with a lofty approach that skied the ball to the LCF gap at times (50% fly ball rate).

Defensively: The first baseman displayed developing actions around the bag with average range and choppy glove-hand actions. Fielded in the middle of the frame and reached back for a 58 mph infield arm.

Pitching: LHP. Southpaw starts off the middle of the rubber; shallow stack position and upper-half dominant down the mound. Worked 57-60 mph from a H ¾ slot, creating some arm-side run while mixing a 51-53 mph CB as the secondary offering.

3/12/22

Physical: Compact, thicker 5-foot-7, 170lb frame. 11.07 runner in the 60-yard dash.

Offensively: RHH. Narrow, simple setup with the hands flush at the shoulder to begin. Utilized a short leg-lift stride to initiate the swing through a flat path towards a shallow two handed finish. Posted a pull-side approach during his round and hit into a firm front side. Recorded T74 mph bat-exit velocity at his peak, 222 feet to LCF. 

Defensively: The first baseman featured developing actions at first base. Higher posture and average range, fielded off the middle of his body. 58 mph arm-strength across the diamond.

Pitching: LHP - The southpaw used a deep side rocker and tall and fall down the slope. Stayed sideways on a 55-57 mph FB and mixed 48-50 mph CB.

6/22/21

Physical: 5-foot-3, 150 pounds; Sturdy, broad shouldered build. 11.13 runner in the 60.

Offensively: RHH. Even setup, with feet shoulder width apart; upright bat position. Short take back with the hands with a slight leg-kick for timing. Slides weight forward pre-contact. while showing a strong lower half. Showed a moderate swing path with a two handed finish.  More line drives than flyballs and groundballs with a peak exit velocity of 65 MPH via Trackman.

Defensively: Starts with an upright /tall setup; static during pre-pitch while sits back. Hands are underneath the body while standing up during transfer. Moderate arm circle  from a standard 3/4 arm slot.   INF - 49 MPH.

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