@jvmesjefferson 
90.7
Velocity (max)
8/31/23
CLASS OF 2021
RHP
OF
James
Jefferson
Des Moines East (HS) • IA
6' 2" • 190LBS
R/R • 23yr 1mo
Rankings
2021 National
Rankings available to Premium Subscriber
2021 State
Rankings available to Premium Subscriber
Commitment
Best Of Stats
Fastball
88.2 - 90
Velo Range
8/31/23
2077
Spin Rate (avg)
9/04/21
Changeup
80.3 - 81.6
Velo Range
8/31/23
1602
Spin Rate (avg)
8/31/23
Curveball
71 - 72
Velo Range
8/09/20
-
Spin Rate (avg)
Slider
75.4 - 78.3
Velo Range
8/31/23
2265
Spin Rate (avg)
9/04/21
83.4
Exit Velocity (max)
8/09/20
77.3
Exit Velocity (avg)
8/09/20
280
Distance (max)
8/09/20
43
Sweet Spot %
8/09/20
20.6
Hand Speed (max)
8/09/20
63.6
Bat Speed (max)
8/09/20
7.5
Rot. Acc (max)
8/09/20
-
Hard Hit %
7.59
60-yd
8/09/20
-
30-yd
-
10-yd
-
Run speed (max)
79
INF Velo
8/04/19
82
OF Velo
8/04/19
-
C Velo
-
Pop Time
Positional Tools
2020
2019
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60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.59
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
79.0
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.
11.0
Home to First
The athlete's fastest home-to-first time in the given event year. Measured from bat-on-ball to foot-on-bag, in seconds (s).
4.91
Infield Velocity
The athlete's maximum throwing velocity from an infield position in the given event year. Measured in miles per hour (MPH).
79.0
Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
82.0
Hitting
2020
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
83.4
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
77.3
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
280
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
121
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
8.3
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.
PBR IA Top Prospect Games- 2021 Grads (Invite Only)
Aug 9, 2020
Trackman - Hitting
83.4
Exit Velocity (max)
77.3
Exit Velocity (avg)
121
Distance (avg)
280
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2020
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
20.6
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.8
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
63.6
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
61.4
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.
PBR IA Top Prospect Games- 2021 Grads (Invite Only)
Aug 9, 2020
Blast - Hitting
20.6
Hand Speed (max)
19.8
Hand Speed (avg)
63.6
Bat Speed (max)
61.4
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2023
2021
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
90.7
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
89.1
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).
1912
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.
21.5
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).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
81.0
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).
1602
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).
76.9
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).
1923
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).
89.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
87.1
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).
2077
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.
23.8
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).
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
75.7
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).
1524
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).
74.4
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).
2265
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).
PBR IA Juco Scout Day- Iowa Central CC
Aug 31, 2023
Trackman - Fastball
90.7
Velocity (max)
88.2 - 90.0
Velo Range
88.7
Eff Velocity (avg)
1,997
Spin Rate (max)
1,912
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
78.3
Velocity (max)
75.4 - 78.3
Velo Range
75.6
Eff Velocity (avg)
1,997
Spin Rate (max)
1,923
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
81.6
Velocity (max)
80.3 - 81.6
Velo Range
80.7
Eff Velocity (avg)
1,693
Spin Rate (max)
1,602
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
PBR IA Juco Scout Day- Iowa Central CC
Sep 4, 2021
Trackman - Fastball
89.0
Velocity (max)
85.9 - 88.3
Velo Range
88.3
Eff Velocity (avg)
2,140
Spin Rate (max)
2,077
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
75.6
Velocity (max)
73.1 - 75.6
Velo Range
74.7
Eff Velocity (avg)
2,354
Spin Rate (max)
2,265
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
76.4
Velocity (max)
74.8 - 76.4
Velo Range
77.2
Eff Velocity (avg)
1,668
Spin Rate (max)
1,524
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Pitch Scores
2023
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
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.
Pitching Velos
2020
2019
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
84.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
83.0
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
71.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
74.5
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
84.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
83.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
74.5
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.0
Game Performance
Vizual Edge
Pitch Ai
Notes
News
- PBR IA Juco Scout Day- Iowa Central CC: Trackman Pitching Leaderboard - Sep 7, 2021
- PBR IA- Top Fastball Velocities Of 2020 - Nov 21, 2020
- PBR IA Top Prospect Games: Pitcher Evaluations - Sep 25, 2020
- PBR IA Top Prospect Games: Outfielder Evaluations - Sep 22, 2020
- PBR IA Top Prospect Games: Instant Analysis - Aug 11, 2020
- PBR IA Underclass Prospect Games: Top Prospects- 2021 Grads - Sep 13, 2019
- PBR IA Scout Blog- IA Limited Series Tournament - Sep 9, 2019
- PBR IA Underclass Prospect Games: Pitcher Evaluations - Aug 30, 2019
- PBR IA Underclass Prospect Games: Outfielder Evaluations - Aug 27, 2019
Comments
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Positional Profile: RHP/OF
Body: 6-2, 150-pounds.
Defense: RH OF - 79 mph. Solid athleticism, elevated throws, long release to target.
Hit: RHH. Closed stance, inconsistent load, aggressive approach, inverted swing plane, mid/pull approach with spray contact.
Power: 76 mph exit velocity from the tee.
Run: 7.59 runner in the 60.
Pitching:
Delivery: RH. High waisted lean frame, arm works relatively well, high ¾ slot, lands athletically to plate.
FB: T84, 82-84 mph. Shows 2-seam running action to plate.
CB: 71-72 mph. Harder break with above avg. depth.
SL: 74-75 mph. 10/4 sweeping action.
CH: 72-73 mph. Above avg. action with feel for bottom of zone.
6-foot-1, 150-pound right-handed hitting 2-way player. Thin athletic frame on mound, hangs over rubber with front foot outside body, slingy arm action, low ¾ slot, ball jumps on hitter with sneaky quickness. Fastball was 82-84 mph with above avg. run and sink. Quality slider with 10/4 shape and late break for strikes. Slight run on changeup with late fading action in bottom of zone. 4.91 home to first time. Slight leg kick trigger, high back elbow, stiffness to swing, flashes hard line drive contact when extended, 75 mph exit velocity. Long and athletic in field, works through ball, occasional elevated release, covers ground well, 82 mph arm strength from outfield. 79 mph arm across infield.