@hserio3 80.9
Velocity (max)
9/20/25
CLASS OF 2028
LHP
OF
Harrison
Serio
Jesuit (HS) • LA
6' 1" • 170LBS
L/L • 16yr 2mo
Travel Team: Noca
6' 1" • 170LBS
L/L • 16yr 2mo
Travel Team: Noca
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
Fastball
78.8 - 80.1
Velo Range
9/20/25
2065
Spin Rate (avg)
1/05/25
Changeup
74.7 - 75.6
Velo Range
9/20/25
1571
Spin Rate (avg)
1/05/25
Curveball
64 - 65
Velo Range
1/05/25
2365
Spin Rate (avg)
1/05/25
Slider
68.8 - 70.2
Velo Range
9/20/25
2403
Spin Rate (avg)
9/20/25
93.7
Exit Velocity (max)
9/20/25
78.8
Exit Velocity (avg)
1/05/25
335
Distance (max)
9/20/25
57
Sweet Spot %
9/20/25
21
Hand Speed (max)
9/20/25
74.9
Bat Speed (max)
9/20/25
12.4
Rot. Acc (max)
9/20/25
43
Hard Hit %
9/20/25
79
INF Velo
9/20/25
85
OF Velo
9/20/25
-
C Velo
-
Pop Time
Positional Tools
2025
Sign in to view rankings 
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).
85.0
Hitting
2025
Exit Velocity Max
The highest exit velocity of any batted ball in the given event year. Measured in miles per hour (MPH).
93.7
Exit Velocity Avg
Average exit velocity of all batted balls in the given event year. Measured in miles per hour (MPH).
78.5
Distance Max
The highest flight distance of any batted ball in the given event year. Measured in feet (ft).
335
Distance Avg
Average flight distance of all batted balls in the given event year. Measured in feet (ft).
149
Launch Angle Avg
Average launch angle of all batted balls in the given event year. Measured in degrees.
10.9935
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.
Louisiana State Games (Invite-Only)
Sep 20, 2025
Trackman - Hitting
93.7
Exit Velocity (max)
78.2
Exit Velocity (avg)
151
Distance (avg)
335
Distance (max)
Hard Hit %
Sweet Spot %
Line Drive %
Ground Ball %
New Orleans Preseason ID
Jan 5, 2025
Trackman - Hitting
84.1
Exit Velocity (max)
78.8
Exit Velocity (avg)
147
Distance (avg)
291
Distance (max)
Sweet Spot %
Line Drive %
Fly Ball %
Ground Ball %
Hitting
2025
Hand Speed Max
The highest Peak Hand Speed of any swing in the given event year.
21.0
Hand Speed Avg
The average Peak Hand Speed for all swings in the given event year.
19.3
Bat Speed Max
The highest Bat Speed of any swing in the given event year.
74.9
Bat Speed Avg
The average Bat Speed for all swings in the given event year.
64.4
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.
Louisiana State Games (Invite-Only)
Sep 20, 2025
Blast - Hitting
21.0
Hand Speed (max)
19.8
Hand Speed (avg)
74.9
Bat Speed (max)
70.8
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
New Orleans Preseason ID
Jan 5, 2025
Blast - Hitting
19.7
Hand Speed (max)
18.8
Hand Speed (avg)
59.1
Bat Speed (max)
57.0
Bat Speed (avg)
Rot. Acc (max)
Rot. Acc (avg)
On Plane Eff (avg)
MaxOnPlaneEfficiency
Pitching
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
80.9
Fastball
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH).
78.6
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).
2039
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.
26.0
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).
64.3
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).
2365
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).
73.8
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).
1500
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).
2396
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).
Louisiana State Games (Invite-Only)
Sep 20, 2025
Trackman - Fastball
80.9
Velocity (max)
78.8 - 80.1
Velo Range
77.4
Eff Velocity (avg)
2,092
Spin Rate (max)
2,028
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
70.2
Velocity (max)
68.8 - 70.2
Velo Range
67.1
Eff Velocity (avg)
2,487
Spin Rate (max)
2,403
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
75.6
Velocity (max)
74.7 - 75.6
Velo Range
73.2
Eff Velocity (avg)
1,685
Spin Rate (max)
1,429
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Zone %
Spin Efficiency % (avg)
New Orleans Preseason ID
Jan 5, 2025
Trackman - Fastball
77.5
Velocity (max)
76.0 - 77.3
Velo Range
75.8
Eff Velocity (avg)
2,164
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
64.9
Velocity (max)
63.7 - 64.9
Velo Range
63.1
Eff Velocity (avg)
2,391
Spin Rate (max)
2,365
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - Slider
66.0
Velocity (max)
64.4 - 66.0
Velo Range
64.1
Eff Velocity (avg)
2,390
Spin Rate (max)
2,375
Spin Rate (avg)
IVB (max)
IVB (avg)
HM (max)
HM (avg)
Extension (avg)
Release Ht (avg)
Spin Score (max)
Spin Efficiency % (avg)
Trackman - ChangeUp
73.2
Velocity (max)
71.4 - 73.2
Velo Range
71.4
Eff Velocity (avg)
1,631
Spin Rate (max)
1,571
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
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
2025
Fastball
Velocity Max
The maximum observed fastball velocity in the given event year. Measured in miles per hour (MPH).
77.0
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)
64.5
Changeup
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
72.0
Slider
Velocity Avg
The average velocity for all pitches of this type in the given event year. Measured in miles per hour (MPH)
65.0
Game Performance
2025
Vertical Jump
A measure of any athlete's body strength and reach calculated from the flight time divided by the contact time.
Vizual Edge
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
Positional Profile: OF/LHP
Body: 5-10, 155-pounds. Athletic and durable.
Delivery: Operates off 3B side of rubber, quicker delivery, finishes off to the 3B side.
Arm Action: LH. Short, quick arm action, high 3/4 slot.
FB: T77, 76-77 mph. Some arm-side run. T2164, 2065 average rpm.
CB: 64-65 mph. "1-7" shape, average break and spin. T2391, 2365 average rpm.
SL: 64-66 mph. "2-8" shape, drops slot some. T2390, 2375 average rpm.
CH: 71-73 mph. Firmer with arm-side run. T1631, 1571 average rpm.
Positional Profile: OF/LHP
Body: 5-10, 155-pounds. Athletic and durable.
Hit: LHH. Narrow and slightly open, leg kick load. Maintains balance with forward move, stays behind the ball and delivers bat head on-plane, extension works to the pull-side, good rotational acceleration, can drige to the pull-side. 57 mph bat speed with 4 G's of rotational acceleration.
Power: 84 max exit velocity, averaged 78.8 mph. 291' max distance.
Arm: LH. OF-79 mph. Short, high 3/4 release.
Defense: Good reads and jumps, plays through the ball smoothly, accurate throws.