22.7
Hand Speed (max)
1/28/23
CLASS OF 2025
SS
RHP
JT
Mumper
Newport Central Catholic (HS) • OH
5' 11" • 180LBS
S/R • 16yr 10mo
Travel Team: CBC Blackhawks
5' 11" • 180LBS
S/R • 16yr 10mo
Travel Team: CBC Blackhawks
Rankings
2025 National
Rankings available to Premium Subscriber
2025 State
Rankings available to Premium Subscriber
Commitment
UNCOMMITTED
Player has made a commitment?
Tell us where
Best Of Stats
67.9
Bat Speed (max)
1/27/24
30.8
Rot. Acc (max)
1/27/24
-
Hard Hit %
88.3
Exit Velocity (max)
1/27/24
81.1
Exit Velocity (avg)
1/27/24
286
Distance (max)
1/27/24
69
Sweet Spot %
1/27/24
7.04
60
1/27/24
-
30-yd
-
10-yd
-
Run speed (max)
84
INF Velo
1/27/24
-
OF Velo
-
C Velo
-
Pop Time
Fastball
85.3
Velocity (max)
1/27/24
84.2 - 85.1
Velo Range
1/27/24
2056
Spin Rate (avg)
1/28/23
Changeup
68.2 - 68.3
Velo Range
1/28/23
1414
Spin Rate (avg)
1/28/23
Curveball
72.9 - 73.4
Velo Range
1/27/24
2601
Spin Rate (avg)
1/27/24
Slider
74.6 - 75.9
Velo Range
1/27/24
2596
Spin Rate (avg)
1/27/24
Positional Tools
2024
2023
2021
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)
7.04
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.
12.5
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
75.0
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
67.0
Hitting
2024
2023
2021
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
88.3
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
81.1
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
286
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
174
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
18.0
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).
80.0
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
71.7
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).
131
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
12.3
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).
70.8
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
57.8
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
152
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
97
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
13.3
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.
Scout Day: CBC Marucci 1.27.24
Jan 27, 2024
Trackman - Hitting
88.3
Exit Velocity (max)
81.1
Exit Velocity (avg)
174
Distance (avg)
286
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Scout Day: CBC Marucci 1.28.23
Jan 28, 2023
Trackman - Hitting
80.0
Exit Velocity (max)
71.7
Exit Velocity (avg)
131
Distance (avg)
253
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Scout Day: Cincinnati Baseball Club 2.20.21
Feb 20, 2021
Trackman - Hitting
70.8
Exit Velocity (max)
57.8
Exit Velocity (avg)
97
Distance (avg)
152
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2024
2023
2021
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
22.5
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
20.3
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
67.9
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
64.5
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.
22.7
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.5
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
60.8
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
58.3
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.
20.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
17.9
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
65.2
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
51.3
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.
Scout Day: CBC Marucci 1.27.24
Jan 27, 2024
Blast - Hitting
22.5
Hand Speed (max)
20.3
Hand Speed (avg)
67.9
Bat Speed (max)
64.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Scout Day: CBC Marucci 1.28.23
Jan 28, 2023
Blast - Hitting
22.7
Hand Speed (max)
19.5
Hand Speed (avg)
60.8
Bat Speed (max)
58.3
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Scout Day: Cincinnati Baseball Club 2.20.21
Feb 20, 2021
Blast - Hitting
20.0
Hand Speed (max)
17.9
Hand Speed (avg)
65.2
Bat Speed (max)
51.3
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2024
2023
2021
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
85.3
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
84.6
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).
2020
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.
23.9
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).
73.2
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).
2601
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).
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.3
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).
2596
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).
76.8
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
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).
2056
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.
26.9
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).
66.2
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).
2145
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).
68.3
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).
1414
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).
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
65.1
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
64.0
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).
1372
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.
21.4
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).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
58.5
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).
1104
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).
Scout Day: CBC Marucci 1.27.24
Jan 27, 2024
Trackman - Fastball
85.3
Velocity (max)
84.2 - 85.1
Velo Range
80.8
Eff Velocity (avg)
2,102
Spin Rate (max)
2,020
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
73.4
Velocity (max)
72.9 - 73.4
Velo Range
68.9
Eff Velocity (avg)
2,685
Spin Rate (max)
2,601
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
75.9
Velocity (max)
74.6 - 75.9
Velo Range
70.9
Eff Velocity (avg)
2,673
Spin Rate (max)
2,596
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Scout Day: CBC Marucci 1.28.23
Jan 28, 2023
Trackman - Fastball
76.8
Velocity (max)
76.2 - 76.8
Velo Range
78.8
Eff Velocity (avg)
2,118
Spin Rate (max)
2,056
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
67.1
Velocity (max)
65.0 - 67.1
Velo Range
65.9
Eff Velocity (avg)
2,214
Spin Rate (max)
2,145
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
68.3
Velocity (max)
68.2 - 68.3
Velo Range
69.8
Eff Velocity (avg)
1,428
Spin Rate (max)
1,414
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Scout Day: Cincinnati Baseball Club 2.20.21
Feb 20, 2021
Trackman - Fastball
65.1
Velocity (max)
63.3 - 64.7
Velo Range
63.0
Eff Velocity (avg)
1,444
Spin Rate (max)
1,372
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
59.8
Velocity (max)
57.2 - 59.8
Velo Range
57.5
Eff Velocity (avg)
1,202
Spin Rate (max)
1,104
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
Pitching Velos
2021
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
66.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
57.5
Game Performance
2024
2023
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.
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.81
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.26
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.78
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.
Scout Day: CBC Marucci 1.28.23
Jan 28, 2023
Swift
1.81
10-yd
4.26
30-yd
7.78
60-yd
17.4
Run speed (max)
2.48
RSi (max)
2.48
RSi (avg)
1,170
Jump Power (max)
24.4
Jump Height (max)
24.4
Jump Height (avg)
Visual Edge
Pitch Ai
Notes
News
- 2024 Scout Day: CBC Marucci Advanced Metrics: Hitting Leaderboard - Jan 29, 2024
- 2024 Scout Day: CBC Marucci Advanced Metrics: Trackman Analytics - Pitching Leaderboard - Jan 29, 2024
- Results From 2024 Scout Day: CBC Marucci - Jan 29, 2024
- 2023 Scout Day: CBC Marucci - Quick Hits - Feb 1, 2023
- 2023 CBC Marucci Advanced Metrics: Trackman Analytics - Pitching Leaderboard - Jan 30, 2023
- 2023 CBC Marucci Advanced Metrics: Hitting/Speed Leaderboard - Jan 30, 2023
- Results From 2023 Scout Day: CBC Marucci - Jan 28, 2023
- 2021 Scout Day: Cincinnati Baseball Club - Quick Hits - Mar 8, 2021
- Results From 2021 Scout Day: Cincinnati Baseball Club - Feb 23, 2021
Comments
Draft Reports
Contact
Premium Content Area
To unlock contact information, you need to purchase a ScoutPLUS subscription.
Purchase Subscription OR
Login
JT Mumper: SS/2B, (2025) Newport Central Catholic, KY. 5-foot-11, 180-pound. (64.5 mph bat speed average). (20.3 mph hand speed average). Starts in an athletic strong stance with a quick controlled load, then uses a small leg kick. Bat speed was efficient, had a simple flat swing plane and high finish. Solid in the infield, his best throw was registered at 84 mph; shows a fluid exchange, sure hands, and quick feet. Fields the ball out front, movements laterally were athletic. Had a quick arm action with a high ¾ slot. In the 60-yard dash, recorded a time of 7.04. On the mound, showing some arm speed he had a consistent compact arm action and a high ¾ arm angle. Feel type pitcher who shows some effort. Had slight running action. (Max spin 2101; Avg 2020). Showed a 11/5 curveball with some sweeping action. (Max spin 2684; Avg 2601). Has late tight action on his 10/4 slider. (Max spin 2672; Avg 2595).
JT Mumper: SS/2B, (2025) Newport Central Catholic, KY. 5-foot-10, 150-pound. (58.3 mph bat speed average). (19.5 mph hand speed average). Started in a quiet stance with a tight load, then used a small leg kick. Bat speed is developing, exhibits a loose level swing plane and balanced finish. Solid in the infield, his best throw was registered at 75 mph; has firm hands, consistent feet, and a natural exchange. Laterally, movements were athletic and fielded the ball out front. Used a high ¾ slot with a quick arm action. On the mound, used a high ¾ arm angle with a consistent arm action while showing consistent arm speed. Drop-and-drive type pitcher who uses easy effort. Has slight running action. (Max spin 2118; Avg 2055). His 11/5 curveball shows some action. (Max spin 2213; Avg 2145).
JT Mumper: SS/2B, (2025) Undecided, OH. 5-foot-3, 125-pound. At the plate, Mumper clocked an exit velocity of 71 mph. Began in a balanced stance with a controlled load, then used a toe tap. Bat speed is efficient, shows a flat swing plane and high finish. Capable while in the infield, made throws at velocities up to 67 mph; has choppy developing feet, consistent hands, and a natural exchange. Fields the ball out front, movements laterally were athletic. Showed a high ¾ slot and a short arm action. Capable on the mound, used a high ¾ arm angle with a consistent arm action while showing consistent arm speed. Slow-tempo type pitcher who uses easy effort. Sat with his fastball at 64-66 mph. He had fading action on his changeup (56-59).