@Bobby_Grzenda 19
Hand Speed (max)
2/25/23
CLASS OF 2028
SS
RHP
Robert
Grzenda Jr
Nazareth Area (HS) • PA
6' 0" • 180.3LBS
R/R • 17yr
Travel Team: Northeast Pride 28 National
6' 0" • 180.3LBSR/R • 17yr
Travel Team: Northeast Pride 28 National
Rankings
2028 National
Rankings available to Premium Subscriber
2028 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
Player has made a commitment?
Tell us where
Best Of Stats
57
Bat Speed (max)
2/25/23
20.4
Rot. Acc (max)
2/25/23
80
Hard Hit %
6/08/26
97.8
Exit Velocity (max)
6/08/26
94.7
Exit Velocity (avg)
6/08/26
364
Distance (max)
6/03/26
73
Sweet Spot %
2/25/23
7.14
60-yd
6/03/26
4.06
30-yd
6/08/26
1.76
10-yd
6/08/26
18.8
Run speed (max)
6/08/26
84
INF Velo
6/08/26
-
OF Velo
-
C Velo
-
Pop Time
Fastball
83
Velocity (max)
6/03/26
82 - 83
Velo Range
6/03/26
2108
Spin Rate (avg)
2/28/26
Changeup
69 - 72
Velo Range
6/03/26
1300
Spin Rate (avg)
6/03/26
Curveball
68.3 - 70.3
Velo Range
6/03/26
1574
Spin Rate (avg)
2/28/26
Slider
65 - 69
Velo Range
3/24/26
1424
Spin Rate (avg)
2/28/26
Positional Tools
2026
2023
Sign in to view rankings 
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.32
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
84.0
Power / Speed Score
A simple calculation that divides the athlete’s Exit Velocity Max by the athlete’s 60 Yard Dash time for the given event year. For example, 98 MPH / 7.00s = 14.00.
13.4
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
72.0
Hitting
2026
2023
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
97.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
85.8
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
364
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
201
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
18.5346
Hard Hit %
Percentage of batted balls with exit velocities over 95 MPH in the given event year.
Sweet Spot %
Percentage of batted balls in the given event year with a launch angle between 8° and 32°.
Line Drive %
Percentage of batted balls with launch angles between 10 and 25 degrees in the given event year.
Fly Ball %
Percentage of batted balls with launch angles between 25 and 50 degrees in the given event year.
Ground Ball %
Percentage of batted balls with launch angles below 10 degrees in the given event year.
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
76.1
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
70.8
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
253
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
183
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
21.6098
Hard Hit %
Percentage of batted balls with exit velocities over 95 MPH in the given event year.
Sweet Spot %
Percentage of batted balls in the given event year with a launch angle between 8° and 32°.
Line Drive %
Percentage of batted balls with launch angles between 10 and 25 degrees in the given event year.
Fly Ball %
Percentage of batted balls with launch angles between 25 and 50 degrees in the given event year.
Ground Ball %
Percentage of batted balls with launch angles below 10 degrees in the given event year.
2026 PA State Games (Session 1)
Jun 8, 2026
Trackman - Hitting
97.8
Exit Velocity (max)
94.7
Exit Velocity (avg)
254
Distance (avg)
363
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2026 Northeast Pride Scout Day (Summer)
Jun 3, 2026
Trackman - Hitting
97.6
Exit Velocity (max)
86.6
Exit Velocity (avg)
193
Distance (avg)
364
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2026 Northeast Pride Scout Day (Preseason)
Feb 28, 2026
Trackman - Hitting
97.7
Exit Velocity (max)
78.9
Exit Velocity (avg)
169
Distance (avg)
335
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
23 JR PA State Games
Jun 20, 2023
Trackman - Hitting
76.1
Exit Velocity (max)
68.6
Exit Velocity (avg)
220
Distance (avg)
249
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
2023 Powerballers Baseball Scout Day
Feb 25, 2023
Trackman - Hitting
75.8
Exit Velocity (max)
72.8
Exit Velocity (avg)
149
Distance (avg)
253
Distance (max)
Sweet Spot %
Line Drive %
Ground Ball %
Hitting
2023
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
19.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
18.2
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
57.0
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
54.7
Rotational Acceleration Max
The highest Rotational Acceleration of any swing in the given event year.
Rotational Acceleration Avg
The average Rotational Acceleration for all swings in the given event year.
On-Plane Efficiency Max
The highest On-Plane Efficiency of any swing in the given event year.
On-Plane Efficiency Avg
The average On-Plane Efficiency for all swings in the given event year.
2023 Powerballers Baseball Scout Day
Feb 25, 2023
Blast - Hitting
19.0
Hand Speed (max)
18.2
Hand Speed (avg)
57.0
Bat Speed (max)
54.7
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2026
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
81.8
Fastball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
2083
Fastball
Spin Score Avg
The average Bauer Units value of all fastballs in the given event year. Bauer Units are calculated for each pitch by dividing Spin Rate by Velocity.
25.5
Fastball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
69.0
Curveball
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1550
Curveball
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
70.3
Changeup
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1235
Changeup
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
68.5
Slider
Spin Rate Avg
The average rate of spin for all pitches of this type in the given event year. Measured in rotations per minute (RPM).
1424
Slider
Total Movement Avg
The average total non-gravity movement for all pitches of this type in the given event year. Measured in inches (in).
2026 Northeast Pride Scout Day (Summer)
Jun 3, 2026
Trackman - Fastball
83.0
Velocity (max)
82.4 - 83.0
Velo Range
82.1
Eff Velocity (avg)
2,162
Spin Rate (max)
2,065
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
70.3
Velocity (max)
68.3 - 70.3
Velo Range
68.2
Eff Velocity (avg)
1,555
Spin Rate (max)
1,519
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
71.8
Velocity (max)
68.8 - 71.8
Velo Range
70.6
Eff Velocity (avg)
1,469
Spin Rate (max)
1,300
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2026 Northeast Pride Scout Day (Preseason)
Feb 28, 2026
Trackman - Fastball
80.8
Velocity (max)
80.2 - 80.8
Velo Range
82.6
Eff Velocity (avg)
2,150
Spin Rate (max)
2,108
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Curveball
69.4
Velocity (max)
68.1 - 69.4
Velo Range
70.5
Eff Velocity (avg)
1,626
Spin Rate (max)
1,574
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
68.5
Velocity (max)
1,424
Spin Rate (max)
1,424
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
70.9
Velocity (max)
69.8 - 70.9
Velo Range
72.6
Eff Velocity (avg)
1,283
Spin Rate (max)
1,186
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
Fastball
Hop+
A fastball with hop has a flat approach angle and visually jumps through the zone. When thrown up in the zone, it is more likely to generate a higher swing and miss average. Hop+ of 100 is MLB average.
Fastball
Sink+
A fastball with sink has low backspin and drops through the strike zone. When thrown down in the zone, it is more likely to generate a higher ground ball percentage and lower launch angle. Sink+ of 100 is MLB average.
Fastball
Rise+
A fastball with rise has a high percentage of backspin. When thrown up in the zone, it is more likely to generate a higher fly ball percentage. Rise+ of 100 is MLB average
Pitching Velos
2026
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
81.2
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.8
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
70.3
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
67.5
Game Performance
2023
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
8.23
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
2026
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.76
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.06
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.32
Top Speed (MPH)
The athlete's fastest split time converted to miles per hour.
RSI
The reactive strength index measurement of an athlete's explosiveness by comparing their jump height to the ground contact time in between their jumps. On a scale of 0-5.
Vizual Edge
2023
Edge Score
The highest Edge Score within the given year. Edge Score is a comprehensive score that takes the core-six visual skills into account, providing an assessment of an athlete’s overall visual ability.
64.5
Pitch Ai
Notes
News
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
Physical
2026
Grip Strgth (LH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Grip Strgth (RH)
Grip strength is a measure of a players bat control and ability to transfer power and speed during impact, measured in pounds of force generated; collected with elbow bent at 90 degrees.
Physical: 5-10, 145 pounds; Wiry, lean build. 8.38 runner in the 60.
Offensively: RHH. Even setup, with feet just outside his shoulders; has a pre-pitch bat waggle. Extended take back of the hands with a slight leg-kick for timing. Stays behind the ball while showing a strong lower half. Showed a direct swing path with a a finish around the back. More flyballs than line drives and groundballs with a peak exit velocity of 76 MPH via Trackman.
Defensively: Starts with an upright /tall setup; walks into ready position while sitting back. Hands are underneath the body while funneling to the hip before transfer. Moderate arm circle from a standard 3/4 arm slot. INF - 72 MPH.