Cached Mar 13, 2026 12:14 PM
Sean Slagle – Player Evaluation Report – TopVelocity.ai
Sean Slagle

Sean Slagle

USA 18 years old Born Nov 5, 2007 Eval: Oct 22, 2025
RHP TopVelocity Evaluation
79
Velocity
6'1"
Height
195
Weight
🤖

AI Velocity Analysis

Machine learning prediction based on 1,535 elite athletes

Camp Velocity
79
mph
AI Prediction
74
mph
Based on physical metrics
Difference
+4.4
mph
Above prediction
Proficiency
81
%ile
Mechanics efficiency
💡
What this means: Excellent mechanics - above average efficiency
You're throwing 4.4 mph faster than athletes with similar physical profiles — great mechanics!

💪 Athletic Variables to Improve

Physical metrics that directly impact velocity. Focus on these for maximum gains.

Broad Jump +2.1 mph
Current 86.0" 17%ile
Goal 96.0" 47%ile
Lateral Broad Jump (Combined) +2.0 mph
Current 146.0" 23%ile
Goal 157.0" 53%ile
Vertical Jump 225 +1.8 mph
Current 20.0" 50%ile
Goal 23.0" 80%ile
Right Grip +1.8 mph
Current 105.0 lbs 44%ile
Goal 118.9 lbs 74%ile
Left Grip +1.8 mph
Current 90.0 lbs 19%ile
Goal 105.0 lbs 49%ile
Vertical Jump +1.8 mph
Current 21.6" 14%ile
Goal 25.0" 44%ile

🎯 Biomechanic Variables to Improve

Motion capture metrics from your throwing mechanics analysis.

Trunk Rotation Speed @ FFS +1.9 mph
Current 518.0°/s 39%ile
Goal 624.2°/s 69%ile
Trunk Flexion @ Ball Release +1.3 mph
Current 33.0° 60%ile
Goal 42.0° 90%ile
Total Potential Velocity Gain: +14.5 mph → Target: 90 mph
✓ Target of 90 mph is achievable!
You need +11.0 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +14.5 mph.
🎖️

TopVelocity Ranking

Based on the TopVelocity Evaluation System

Current Rank
Unranked
Youth Level 3 3/16 metrics
Youth Level 2 6/16 metrics
Youth Level 1 8/16 metrics
Vertical Jump 21.6 / ≥17.0
Broad Jump 86.0 / ≥72.0
10 Yard Sprint 1.9 / ≤2.1
Total Body Strength 400.0 / ≥200.0
Right Hip Internal Rotation 15.0 / ≥30.0
Left Hip Internal Rotation 25.0 / ≥30.0
Right Hip Extension 15.0 / ≥15.0
Left Hip Extension 20.0 / ≥15.0
Right Hip Flexion 76.0 / ≥80.0
Left Hip Flexion 75.0 / ≥80.0
Right Hip Abduction 40.0 / ≥45.0
Left Hip Abduction 40.0 / ≥45.0
Right Trunk Rotation 60.0 / ≥65.0
Left Trunk Rotation 50.0 / ≥65.0
Right Dorsiflexion 19.0 / ≥10.0
Left Dorsiflexion 15.0 / ≥10.0
📊 Performance Scores (Percentile)
🔄
44
Mobility
💪
52
Shoulder
32
Power
⚖️
28
Balance
🎯
55
Mechanics
🏆
42
Overall
📏

Anthropometric

3 metrics measured

69
Overall
72.5 in
in
Body Height
62th Percentile
Elite (90th): 75.0 in
Difference: -2.5 in
195 lbs
lbs
Body Weight
68th Percentile
Elite (90th): 216 lbs
Difference: -21 lbs
74.0 in
in
Wing Span
75th Percentile
Elite (90th): 76.0 in
Difference: -2.0 in
🔄

Mobility

23 metrics measured

44
Overall
19 °
°
Right Dorsiflexion
90th Percentile
Elite (90th): 19 °
Difference: ✓ Elite
15 °
°
Left Dorsiflexion
75th Percentile
Elite (90th): 18 °
Difference: -3 °
70 °
°
Right Plantar Flexion
75th Percentile
Elite (90th): 75 °
Difference: -5 °
60 °
°
Left Plantar Flexion
50th Percentile
Elite (90th): 75 °
Difference: -15 °
15 °
°
Right Hip Internal Rotation
5th Percentile
Elite (90th): 40 °
Difference: -25 °
25 °
°
Left Hip Internal Rotation
25th Percentile
Elite (90th): 40 °
Difference: -15 °
42 °
°
Right Hip External Rotation
60th Percentile
Elite (90th): 54 °
Difference: -12 °
40 °
°
Left Hip External Rotation
50th Percentile
Elite (90th): 50 °
Difference: -10 °
15 °
°
Right Hip Extension
25th Percentile
Elite (90th): 25 °
Difference: -10 °
20 °
°
Left Hip Extension
50th Percentile
Elite (90th): 25 °
Difference: -5 °
76 °
°
Right Hip Flexion
35th Percentile
Elite (90th): 95 °
Difference: -19 °
75 °
°
Left Hip Flexion
32th Percentile
Elite (90th): 95 °
Difference: -20 °
40 °
°
Right Hip Abduction
25th Percentile
Elite (90th): 51 °
Difference: -11 °
40 °
°
Left Hip Abduction
25th Percentile
Elite (90th): 52 °
Difference: -12 °
40 °
°
Right Shoulder Internal Rotation
30th Percentile
Elite (90th): 70 °
Difference: -30 °
59 °
°
Left Shoulder Internal Rotation
65th Percentile
Elite (90th): 80 °
Difference: -21 °
115 °
°
Right Shoulder External Rotation
82th Percentile
Elite (90th): 120 °
Difference: -5 °
105 °
°
Left Shoulder External Rotation
70th Percentile
Elite (90th): 115 °
Difference: -10 °
21 °
°
Right Shoulder Horizontal Abduction
13th Percentile
Elite (90th): 35 °
Difference: -14 °
21 °
°
Left Shoulder Horizontal Abduction
17th Percentile
Elite (90th): 35 °
Difference: -14 °
35 °
°
Trunk Extension
42th Percentile
Elite (90th): 50 °
Difference: -15 °
60 °
°
Right Trunk Rotation
50th Percentile
Elite (90th): 75 °
Difference: -15 °
50 °
°
Left Trunk Rotation
25th Percentile
Elite (90th): 70 °
Difference: -20 °
💪

Strength & Power

11 metrics measured

32
Overall
21.6 in
in
Vertical Jump
18th Percentile
Elite (90th): 30.0 in
Difference: -8.4 in
20.0 in
in
Vertical Jump 225lbs
50th Percentile
Elite (90th): 24.3 in
Difference: -4.3 in
86 in
in
Broad Jump
21th Percentile
Elite (90th): 108 in
Difference: -22 in
74 in
in
Right Lateral Broad Jump
33th Percentile
Elite (90th): 86 in
Difference: -12 in
72 in
in
Left Lateral Broad Jump
25th Percentile
Elite (90th): 86 in
Difference: -14 in
1.870 s
s
10 Yard Sprint
6th Percentile
Elite (90th): 1.880 s
Difference: -0.010 s
400 lbs
lbs
Total Body Strength
45th Percentile
Elite (90th): 600 lbs
Difference: -200 lbs
105 lbs
lbs
Right Grip Strength
47th Percentile
Elite (90th): 130 lbs
Difference: -25 lbs
90 lbs
lbs
Left Grip Strength
25th Percentile
Elite (90th): 130 lbs
Difference: -40 lbs
671 W
W
Right Rotational Power
55th Percentile
Elite (90th): 973 W
Difference: -302 W
455 W
W
Left Rotational Power
25th Percentile
Elite (90th): 909 W
Difference: -454 W
⚖️

Balance

6 metrics measured

28
Overall
26 in
in
Right Y-Balance 1
50th Percentile
Elite (90th): 36 in
Difference: -10 in
32 in
in
Right Y-Balance 2
37th Percentile
Elite (90th): 47 in
Difference: -15 in
26 in
in
Right Y-Balance 3
10th Percentile
Elite (90th): 46 in
Difference: -20 in
23 in
in
Left Y-Balance 1
25th Percentile
Elite (90th): 37 in
Difference: -14 in
29 in
in
Left Y-Balance 2
20th Percentile
Elite (90th): 46 in
Difference: -17 in
30 in
in
Left Y-Balance 3
25th Percentile
Elite (90th): 47 in
Difference: -17 in
🎯

Shoulder Strength

4 metrics measured

52
Overall
194 °
°
Right Shoulder Flexion
62th Percentile
Elite (90th): 209 °
Difference: -15 °
39 lbs
lbs
Right Shoulder Internal Rotation Strength
53th Percentile
Elite (90th): 55 lbs
Difference: -16 lbs
31 lbs
lbs
Right Shoulder External Rotation Strength
37th Percentile
Elite (90th): 49 lbs
Difference: -18 lbs
28 lbs
lbs
Scaption Right Back
56th Percentile
Elite (90th): 36 lbs
Difference: -8 lbs
⚙️

Mechanics

15 metrics measured

55
Overall
12 °
°
Hip Shoulder Separation Before Leg Drive
62th Percentile
Elite (90th): 21 °
Difference: -9 °
25 °
°
Trunk Flexion Before Leg Drive
50th Percentile
Elite (90th): 32 °
Difference: -7 °
60 °
°
Drive Knee Extension Before Leg Drive
45th Percentile
Elite (90th): 70 °
Difference: -10 °
57 °
°
Left Knee Flexion Front Foot Strike
86th Percentile
Elite (90th): 58 °
Difference: -1 °
86 °
°
Dominate Arm External Rotation Front Foot Strike
71th Percentile
Elite (90th): 97 °
Difference: -11 °
27 °
°
Dominate Arm Shoulder Abduction Front Foot Strike
29th Percentile
Elite (90th): 45 °
Difference: -18 °
539 °/s
°/s
Pelvis Rotation Speed Front Foot Strike
67th Percentile
Elite (90th): 673 °/s
Difference: -134 °/s
518 °/s
°/s
Trunk Rotation Speed Front Foot Strike
52th Percentile
Elite (90th): 756 °/s
Difference: -238 °/s
175 °
°
Dominate Arm External Rotation Maximum External Rotation
75th Percentile
Elite (90th): 184 °
Difference: -9 °
-4 °
°
Dominate Arm Shoulder Abduction Maximum External Rotation
40th Percentile
Elite (90th): 9 °
Difference: -13 °
536 °/s
°/s
Dominate Arm External Rotation Speed Maximum External Rotation
47th Percentile
Elite (90th): 1238 °/s
Difference: -702 °/s
33 °
°
Trunk Flexion Ball Release
64th Percentile
Elite (90th): 42 °
Difference: -9 °
103 °
°
Dominate Arm Shoulder Abduction Ball Release
84th Percentile
Elite (90th): 105 °
Difference: -2 °
-18 °
°
Dominate Arm Shoulder Horizontal Abduction Ball Release
33th Percentile
Elite (90th): -2 °
Difference: -16 °
35 °
°
Dominate Arm Extension Ball Release
22th Percentile
Elite (90th): 70 °
Difference: -35 °

Pitch Metrics

4 metrics measured

68
Overall
20 in
in
Vertical Break
90th Percentile
Elite (90th): 20 in
Difference: ✓ Elite
9 in
in
Horizontal Break
62th Percentile
Elite (90th): 14 in
Difference: -5 in
1964 rpm
rpm
Total Spin
62th Percentile
Elite (90th): 2178 rpm
Difference: -214 rpm
79 mph
mph
Total Velocity
56th Percentile
Elite (90th): 86 mph
Difference: -7 mph
🎯

Brent Pourciau's Analysis

Road to 90

Personalized roadmap for Sean Slagle

📊 The Overview
Alright Sean, here's your Road to 90. You're currently sitting at 79 mph, which means you need about 11.0 mph to hit your target of 90. Your profile is in the 42th percentile overall, which means there's significant room to grow. The good news? Every improvement you make will translate to velocity.
🤖 What The AI Analysis Tells Me
Sean, here's what jumps out at me — you're throwing 79 mph, but based on your physical profile, our AI model predicted you'd be around 74.6 mph. That's a +4.4 mph difference, which tells me your mechanics and motor patterns are already working in your favor. You're squeezing more velocity out of your body than most athletes with similar builds. That's a huge positive.
Your mechanics efficiency is at the 81th percentile — that's excellent. You're converting your athleticism into velocity very well. There may be small refinements we can make, but the big wins will come from improving your physical profile.
🎯 Your Biggest Opportunities
Based on the AI analysis, here are your biggest opportunities to add velocity:
Broad Jump +2.1 mph
Current: 86.0" (17th %ile) Target: 96.0" (47th %ile)
Why it matters: Your broad jump is one of the best predictors of pitching velocity because it measures your ability to produce horizontal force — exactly what you need off the mound.
How we fix it: The Stride Excelerator is perfect for this — it trains the exact horizontal force production pattern you use in your delivery. Combine that with plyometrics, bounds, and the TopVelocity Sled for resisted stride work.
Lateral Broad Jump +2.0 mph
Current: 146.0" (23th %ile) Target: 157.0" (53th %ile)
Why it matters: This measures your lateral power — critical because pitching involves a massive lateral push off the rubber before you rotate.
How we fix it: The Stride Excelerator trains this lateral drive pattern specifically. Combine it with lateral bounds and the TopVelocity Sled for lateral resisted work.
Vertical Jump 225 +1.8 mph
Current: 20.0" (50th %ile) Target: 23.0" (80th %ile)
Why it matters: This metric has a direct correlation to pitching velocity based on our data from over 800 athletes.
How we fix it: The 3X Pitching Velocity Program includes specific protocols to target this. Combined with the TopVelocity training devices, you'll see improvement quickly.
These three priorities alone = +5.9 mph potential
⚙️ The Mechanical Side
The AI also identified some mechanical variables from your motion capture data. There's about +3.2 mph worth of mechanical improvements available. These are things like trunk rotation speed, pelvis rotation, and arm timing — exactly what the 3X Pitching Velocity Program is designed to fix. The Trunk Excelerator specifically trains that rotational sequencing, and the Stride Excelerator grooves the lower half mechanics. This is where the real velocity unlocks.
🏆 Can You Hit Your Target?
Here's the best part — the math works. You need +11.0 mph to hit 90, and the improvements above give you +14.5 mph of potential. This is achievable. It's not going to happen overnight, but if you commit to the training and stay consistent, 90 mph is absolutely in reach.
🚀 My Recommendation
Based on everything I'm seeing here, here's what I recommend: The 3X Pitching Velocity Program is exactly what you need. This isn't just a throwing program — it's a complete system that addresses mechanics, strength, power, and motor learning all in one. You've got some physical development to do, and the 3X Program includes the strength and power protocols to build that foundation while you're learning elite mechanics. To accelerate your results, I highly recommend using the TopVelocity training devices that are built into the program: The Trunk Excelerator teaches you to generate and transfer rotational power through your core — this is where velocity lives. The Stride Excelerator builds explosive leg drive and proper stride mechanics, which is the foundation of the 3X approach. The Impulse Ground Force Trainer develops your ability to create force into the ground, and the TopVelocity Sled builds the specific strength patterns you need for a powerful delivery. These aren't gimmicks — they're tools designed to train the exact movement patterns that separate high-velocity pitchers from everyone else. Combine them with the 3X Program and you'll see results faster than training alone.
💪 Your Top Physical Priorities
The two biggest physical drivers for you right now are broad jump and Body Height. Together, these account for about 1.2 mph of your velocity gap.
Broad Jump +1.1 mph
Current 86 in
Percentile 21th
Target 102 in
To Gain +16 in
Body Height +0 mph
Current 72.5 in
Percentile 63th
Target 72.8 in
To Gain +0.3 in
🔧 Supporting Work
After that, it's about the supporting package: Left Hip Abduction, Left Hip External Rotation (mobility), Left Lateral Broad Jump, Left Grip Strength (power/stability). These aren't the headline levers, but they raise the floor and make your mechanics easier to execute.
⚙️ Mechanical Focus
Mechanically, the key focus is Dominate Arm External Rotation Speed Maximum External Rotation and Dominate Arm Extension Ball Release. Most of the energy to the ball comes through the trunk, so trunk acceleration and sequencing are the big rocks to move.
Dominate Arm External Rotation Speed Maximum External Rotation +0.1 mph
Current Percentile 48th
🎯 Your Action Plan
Movement Cues:
"Shin down, leverage, drive — use the ground."
Training Priorities:
Explosive Power
Jump training (box jumps, bounds) + Olympic lift progressions (cleans, hang cleans). Train fast to be fast.
🚀 What's Next
Hit these targets, re-test, and the system will update the next set of variables to chase. This is iterative — each evaluation narrows the focus as your profile improves. Plan to re-evaluate in 8-12 weeks.

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Achievement Milestones

Evaluated
🎖 Ranked
80+ MPH
🔥 85+ MPH
💪 90+ Club
🏆 Pro Level