@RPropsner 
19.1
Hand Speed (max)
2/22/25
CLASS OF 2026
OF
RHP
Rob
Propsner
Downingtown East (HS) • PA
5' 9" • 155.2LBS
L/R • 17yr 2mo
Travel Team: FTB Phillies Scout DB9 2026
5' 9" • 155.2LBSL/R • 17yr 2mo
Travel Team: FTB Phillies Scout DB9 2026
Rankings
2026 National
Rankings available to Premium Subscriber
2026 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
62.8
Bat Speed (max)
6/11/25
12
Rot. Acc (max)
2/22/25
-
Hard Hit %
83.2
Exit Velocity (max)
6/11/25
76
Exit Velocity (avg)
6/11/25
258
Distance (max)
2/22/25
78
Sweet Spot %
2/17/24
6.93
60-yd
6/11/25
3.90
30-yd
6/11/25
1.74
10-yd
6/11/25
20.3
Run speed (max)
6/11/25
-
INF Velo
86
OF Velo
6/11/25
-
C Velo
-
Pop Time
Fastball
83.1
Velocity (max)
6/11/25
80 - 82
Velo Range
6/11/25
2188
Spin Rate (avg)
6/11/25
Changeup
75 - 76
Velo Range
2/22/25
1608
Spin Rate (avg)
6/11/25
Curveball
69 - 71
Velo Range
6/11/25
1894
Spin Rate (avg)
6/11/25
Slider
71.3 - 73.3
Velo Range
6/11/25
1917
Spin Rate (avg)
6/11/25
Positional Tools
2025
2024
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
6.93
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
86.0
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.
12.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.13
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
80.0
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.
11.4
Hitting
2025
2024
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
83.2
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
75.5
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
258
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
124
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
11.3881
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).
81.4
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
71.2
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
226
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
130
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
14.749
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.
2025 PA State Games Session 2
Jun 11, 2025
Trackman - Hitting
83.2
Exit Velocity (max)
76.0
Exit Velocity (avg)
140
Distance (avg)
241
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2025 PA Preseason ID: Southeast (Session 1)
Feb 22, 2025
Trackman - Hitting
82.4
Exit Velocity (max)
75.2
Exit Velocity (avg)
116
Distance (avg)
258
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2024 PA Preseason ID: East
Feb 17, 2024
Trackman - Hitting
78.3
Exit Velocity (max)
70.1
Exit Velocity (avg)
149
Distance (avg)
223
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
2024 West Chester Dragons Scout Day
Jan 28, 2024
Trackman - Hitting
81.4
Exit Velocity (max)
72.1
Exit Velocity (avg)
114
Distance (avg)
226
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2025
2024
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
19.1
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
17.1
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
62.8
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
58.4
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.
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
18.7
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
16.9
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
60.0
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
56.1
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.
2025 PA State Games Session 2
Jun 11, 2025
Blast - Hitting
17.9
Hand Speed (max)
17.4
Hand Speed (avg)
62.8
Bat Speed (max)
60.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2025 PA Preseason ID: Southeast (Session 1)
Feb 22, 2025
Blast - Hitting
19.1
Hand Speed (max)
16.9
Hand Speed (avg)
61.8
Bat Speed (max)
57.2
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2024 PA Preseason ID: East
Feb 17, 2024
Blast - Hitting
18.7
Hand Speed (max)
16.6
Hand Speed (avg)
59.3
Bat Speed (max)
54.9
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
2024 West Chester Dragons Scout Day
Jan 28, 2024
Blast - Hitting
18.3
Hand Speed (max)
17.2
Hand Speed (avg)
60.0
Bat Speed (max)
57.6
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2025
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
83.1
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
80.9
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).
2165
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.
26.8
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).
69.9
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).
1894
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).
74.9
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).
1586
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).
71.2
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).
1864
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
77.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.6
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).
2036
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.
27.0
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).
63.3
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).
1739
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).
69.7
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).
1493
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).
2025 PA State Games Session 2
Jun 11, 2025
Trackman - Fastball
83.1
Velocity (max)
79.9 - 82.0
Velo Range
79.5
Eff Velocity (avg)
2,287
Spin Rate (max)
2,188
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
72.2
Velocity (max)
68.9 - 70.9
Velo Range
68.3
Eff Velocity (avg)
2,098
Spin Rate (max)
1,894
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
73.7
Velocity (max)
71.3 - 73.3
Velo Range
70.2
Eff Velocity (avg)
2,014
Spin Rate (max)
1,917
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
74.8
Velocity (max)
74.2 - 74.8
Velo Range
73.3
Eff Velocity (avg)
1,622
Spin Rate (max)
1,608
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
2025 PA Preseason ID: Southeast (Session 1)
Feb 22, 2025
Trackman - Fastball
81.2
Velocity (max)
80.1 - 80.9
Velo Range
77.5
Eff Velocity (avg)
2,161
Spin Rate (max)
2,066
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
69.8
Velocity (max)
68.4 - 69.8
Velo Range
66.3
Eff Velocity (avg)
1,823
Spin Rate (max)
1,757
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
75.9
Velocity (max)
74.9 - 75.9
Velo Range
72.8
Eff Velocity (avg)
1,566
Spin Rate (max)
1,552
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
2024 PA Preseason ID: East
Feb 17, 2024
Trackman - Fastball
77.7
Velocity (max)
74.9 - 77.2
Velo Range
73.7
Eff Velocity (avg)
2,037
Spin Rate (max)
1,962
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
63.9
Velocity (max)
63.2 - 63.8
Velo Range
60.4
Eff Velocity (avg)
1,729
Spin Rate (max)
1,667
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
69.8
Velocity (max)
67.9
Eff Velocity (avg)
1,473
Spin Rate (max)
1,473
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
2024 West Chester Dragons Scout Day
Jan 28, 2024
Trackman - Fastball
77.4
Velocity (max)
73.7 - 76.7
Velo Range
74.1
Eff Velocity (avg)
2,189
Spin Rate (max)
2,100
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
63.9
Velocity (max)
62.4 - 63.6
Velo Range
60.9
Eff Velocity (avg)
1,848
Spin Rate (max)
1,829
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
69.8
Velocity (max)
69.4 - 69.8
Velo Range
68.4
Eff Velocity (avg)
1,565
Spin Rate (max)
1,503
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+
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
Curveball
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Curveball
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ of 100 is MLB average.
Slider
Hammer+
A hammer breaking ball drops vertically with velocity through the zone, or 12-to-6 movement. Hammer+ of 100 is MLB average.
Slider
Sweep+
A sweeping breaking ball moves horizontally with velocity through the zone. Sweep+ of 100 is MLB average.
2025 PA State Games Session 2
Jun 11, 2025
Pitch Scores - Fastball
Hop+
Rise+
Sink+
Pitch Scores - Curveball
Hammer+
Sweep+
Pitch Scores - Slider
Hammer+
Sweep+
Pitching Velos
2025
2024
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)
80.8
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
70.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
70.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
79.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
76.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.2
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
69.8
Game Performance
2024
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.74
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.97
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.13
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.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
2024 PA Preseason ID: East
Feb 17, 2024
Swift
1.74
10-yd
3.97
30-yd
7.13
60-yd
19.4
Run speed (max)
2.32
RSI (max)
23.1
Jump Height (max)
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.74
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
3.9
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
6.93
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.
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
2025 PA State Games Session 2
Jun 11, 2025
Vald
1.74
10-yd
3.90
30-yd
6.93
60-yd
20.3
Run speed (max)
0.70
RSI (max)
17.8
Jump Height (max)
Vizual Edge
2025
2024
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.
79.42
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.
71.51
Pitch Ai
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Physical
2025
2024
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.
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.