24.7
Hand Speed (max)
7/30/25
CLASS OF 2028
OF
RHP
Jameson
Pierce
Arrowhead Christian (HS) • CA
5' 9" • 182.2LBS
L/R • 15yr 10mo
Travel Team: RCB Elite
5' 9" • 182.2LBSL/R • 15yr 10mo
Travel Team: RCB Elite
Rankings
2028 National
Rankings available to Premium Subscriber
2028 State
Rankings available to Premium Subscriber
Commitment
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Best Of Stats
66.5
Bat Speed (max)
7/24/24
24
Rot. Acc (max)
7/30/25
-
Hard Hit %
86
Exit Velocity (max)
7/24/24
80.6
Exit Velocity (avg)
7/24/24
313
Distance (max)
7/24/24
70
Sweet Spot %
9/28/24
7.50
60-yd
4/21/24
4.18
30-yd
7/30/25
1.80
10-yd
7/30/25
17.8
Run speed (max)
7/30/25
-
INF Velo
80
OF Velo
7/24/24
-
C Velo
-
Pop Time
Fastball
82.4
Velocity (max)
7/30/25
77.4 - 80.2
Velo Range
7/30/25
1914
Spin Rate (avg)
4/21/24
Changeup
70.8 - 72.6
Velo Range
7/30/25
1680
Spin Rate (avg)
7/30/25
Curveball
64 - 66
Velo Range
7/25/24
-
Spin Rate (avg)
Slider
70 - 72.2
Velo Range
7/30/25
1920
Spin Rate (avg)
4/21/24
Positional Tools
2025
2024
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Outfield Velocity
The athlete's maximum throwing velocity from an outfield position in the given event year. Measured in miles per hour (MPH).
77.0
60 Yard Dash
The athlete's fastest 60-yard dash time in the given event year. Measured in seconds (s)
7.50
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.
11.5
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).
85.3
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
77.9
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
219
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
123
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
12.9291
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).
86.0
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
73.6
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
313
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
164
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
28.791
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 California State Games (Invite-Only)
Jul 30, 2025
Trackman - Hitting
85.3
Exit Velocity (max)
77.9
Exit Velocity (avg)
123
Distance (avg)
219
Distance (max)
Sweet Spot %
Line Drive %
Ground Ball %
SoCal Underclass Top Prospect Game
Sep 28, 2024
Trackman - Hitting
83.5
Exit Velocity (max)
73.1
Exit Velocity (avg)
136
Distance (avg)
207
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Junior Future Games (Class of 2028/29)
Jul 24, 2024
Trackman - Hitting
86.0
Exit Velocity (max)
80.6
Exit Velocity (avg)
180
Distance (avg)
313
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
SoCal Rising Stars Game
May 12, 2024
Trackman - Hitting
81.6
Exit Velocity (max)
73.9
Exit Velocity (avg)
148
Distance (avg)
272
Distance (max)
Fly Ball %
Ground Ball %
Rising Stars ID: VTA County
Apr 21, 2024
Trackman - Hitting
78.9
Exit Velocity (max)
69.0
Exit Velocity (avg)
186
Distance (avg)
281
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Hitting
2025
2024
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
24.7
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
23.6
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
60.1
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
57.8
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.
23.3
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
21.4
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
66.5
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
58.9
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 California State Games (Invite-Only)
Jul 30, 2025
Blast - Hitting
24.7
Hand Speed (max)
23.6
Hand Speed (avg)
60.1
Bat Speed (max)
57.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
SoCal Underclass Top Prospect Game
Sep 28, 2024
Blast - Hitting
22.9
Hand Speed (max)
21.0
Hand Speed (avg)
61.1
Bat Speed (max)
55.5
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Junior Future Games (Class of 2028/29)
Jul 24, 2024
Blast - Hitting
23.3
Hand Speed (max)
22.0
Hand Speed (avg)
66.5
Bat Speed (max)
64.2
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).
82.4
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
78.8
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).
1864
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.
23.6
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).
71.7
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).
1680
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).
71.1
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).
1809
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).
78.5
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
76.3
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).
1873
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.
24.5
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).
67.6
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).
1297
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).
64.7
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).
2025 California State Games (Invite-Only)
Jul 30, 2025
Trackman - Fastball
82.4
Velocity (max)
77.4 - 80.2
Velo Range
76.7
Eff Velocity (avg)
2,001
Spin Rate (max)
1,864
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
73.1
Velocity (max)
70.0 - 72.2
Velo Range
69.4
Eff Velocity (avg)
2,052
Spin Rate (max)
1,809
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - ChangeUp
72.9
Velocity (max)
70.8 - 72.6
Velo Range
69.6
Eff Velocity (avg)
1,882
Spin Rate (max)
1,680
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
SoCal Underclass Top Prospect Game
Sep 28, 2024
Trackman - Fastball
78.0
Velocity (max)
74.5 - 76.3
Velo Range
73.6
Eff Velocity (avg)
1,961
Spin Rate (max)
1,852
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
64.9
Velocity (max)
60.1 - 64.9
Velo Range
61.4
Eff Velocity (avg)
1,865
Spin Rate (max)
1,840
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
65.1
Velocity (max)
64.2
Eff Velocity (avg)
1,288
Spin Rate (max)
1,288
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
SoCal Rising Stars Game
May 12, 2024
Trackman - Fastball
78.5
Velocity (max)
77.0 - 78.1
Velo Range
74.7
Eff Velocity (avg)
1,974
Spin Rate (max)
1,880
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
67.5
Velocity (max)
55.8 - 67.5
Velo Range
64.0
Eff Velocity (avg)
1,832
Spin Rate (max)
1,793
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
69.4
Velocity (max)
67.6 - 69.4
Velo Range
65.8
Eff Velocity (avg)
1,201
Spin Rate (max)
1,124
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
Rising Stars ID: VTA County
Apr 21, 2024
Trackman - Fastball
78.3
Velocity (max)
76.1 - 77.6
Velo Range
75.0
Eff Velocity (avg)
1,965
Spin Rate (max)
1,914
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Trackman - Slider
67.3
Velocity (max)
66.2 - 67.2
Velo Range
65.2
Eff Velocity (avg)
1,962
Spin Rate (max)
1,920
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
68.9
Velocity (max)
66.4 - 68.5
Velo Range
65.5
Eff Velocity (avg)
1,523
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 %
Pitch Scores
2025
2024
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.
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
2024
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
78.0
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
75.5
Curveball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.0
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
68.2
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
62.5
Game Performance
2024
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.
4.23
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.77
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.
SoCal Underclass Top Prospect Game
Sep 28, 2024
Swift
1.82
10-yd
4.23
30-yd
7.77
60-yd
17.3
Run speed (max)
1.44
RSI (max)
22.5
Jump Height (max)
Junior Future Games (Class of 2028/29)
Jul 24, 2024
Swift
1.84
10-yd
4.24
30-yd
7.77
60-yd
17.4
Run speed (max)
2.19
RSI (max)
23.6
Jump Height (max)
2025
10 Yard Dash
The athlete's fastest 0-10-yard split time in the given event year. Measured in seconds.
1.8
30 Yard Dash
The athlete's fastest 0-30-yard split time in the given event year. Measured in seconds.
4.18
60 Yard Dash
The athlete's fastest 0-60-yard time in the given event year. Measured in seconds.
7.62
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 California State Games (Invite-Only)
Jul 30, 2025
Vald
1.80
10-yd
4.18
30-yd
7.62
60-yd
17.8
Run speed (max)
1.20
RSI (max)
21.5
Jump Height (max)
Vizual Edge
2025
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.
70.77
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.
Positional Profile: OF/RHP
Body: 5-8, 170-pounds. Athletic frame with present strength.
Hit: LHH. Even stance with hands above back shoulder away from body. Wide base with bend in knees. Strong base supplying power. Short swing through the zone.
Power: Higher launch angle that produces a lot of fly balls.
Arm: RH. OF-80 mph. Short over the top release. Quick arm path.
Defense: Calm footwork progressing through the play.
ATH: Quickly gets into vertical running position off the line.