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Sean Hollendoner – Player Evaluation Report – TopVelocity.ai
Sean Hollendoner

Sean Hollendoner

USA 21 years old Born Oct 11, 2004 Eval: Jul 30, 2022
RHP TopVelocity Evaluation
73
Velocity
6'0"
Height
172
Weight
🤖

AI Velocity Analysis

Machine learning prediction based on 1,535 elite athletes

Camp Velocity
73
mph
AI Prediction
74
mph
Based on physical metrics
Difference
1.5
mph
Below prediction
Proficiency
34
%ile
Mechanics efficiency
💡
What this means: Below average mechanics - significant improvement potential

💪 Athletic Variables to Improve

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

Broad Jump +2.1 mph
Current 92.0" 32%ile
Goal 100.0" 62%ile
Lateral Broad Jump (Combined) +2.0 mph
Current 144.0" 17%ile
Goal 154.0" 47%ile
Vertical Jump +1.8 mph
Current 21.0" 10%ile
Goal 25.0" 40%ile
Vertical Jump 225 +1.8 mph
Current 17.0" 24%ile
Goal 20.0" 54%ile
Left Grip +1.8 mph
Current 93.0 lbs 27%ile
Goal 107.3 lbs 57%ile
10-Yard Sprint +1.5 mph
Current 1.790s 15%ile
Goal 1.680s 45%ile
Weight +1.5 mph
Current 172.0 lbs 38%ile
Goal 194.5 lbs 68%ile
Total Body Strength +1.4 mph
Current 280.0 lbs 9%ile
Goal 370.0 lbs 39%ile

🎯 Biomechanic Variables to Improve

Motion capture metrics from your throwing mechanics analysis.

Trunk Rotation Speed @ FFS +1.9 mph
Current 618.0°/s 64%ile
Goal 778.1°/s 94%ile
Arm Rotation Speed @ MER +1.1 mph
Current 1,082.0°/s 64%ile
Goal 1,305.5°/s 94%ile
Arm External Rotation @ FFS +1.0 mph
Current 86.0° 64%ile
Goal 99.2° 94%ile
Shoulder Abduction @ MER +0.7 mph
Current -5.0° 21%ile
Goal -1.7° 51%ile
Shoulder Horiz Abd @ BR +0.6 mph
Current -16.0° 25%ile
Goal -12.5° 55%ile
Shoulder Abduction @ FFS +0.6 mph
Current 25.0° 26%ile
Goal 34.0° 56%ile
Total Potential Velocity Gain: +19.8 mph → Target: 90 mph
✓ Target of 90 mph is achievable!
You need +17.0 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +19.8 mph.
🎖️

TopVelocity Ranking

Based on the TopVelocity Evaluation System

Current Rank
Unranked
Youth Level 3 2/16 metrics
Youth Level 2 6/16 metrics
Youth Level 1 9/16 metrics
Vertical Jump 21.0 / ≥17.0
Broad Jump 92.0 / ≥72.0
10 Yard Sprint 1.8 / ≤2.1
Total Body Strength 280.0 / ≥200.0
Right Hip Internal Rotation 15.0 / ≥30.0
Left Hip Internal Rotation 21.0 / ≥30.0
Right Hip Extension 12.0 / ≥15.0
Left Hip Extension 15.0 / ≥15.0
Right Hip Flexion 78.0 / ≥80.0
Left Hip Flexion 85.0 / ≥80.0
Right Hip Abduction 45.0 / ≥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 17.0 / ≥10.0
Left Dorsiflexion 15.0 / ≥10.0
📊 Performance Scores (Percentile)
🔄
33
Mobility
💪
29
Shoulder
37
Power
⚖️
50
Balance
🎯
61
Mechanics
🏆
42
Overall
📏

Anthropometric

3 metrics measured

40
Overall
72.0 in
in
Body Height
50th Percentile
Elite (90th): 75.0 in
Difference: -3.0 in
172 lbs
lbs
Body Weight
38th Percentile
Elite (90th): 216 lbs
Difference: -44 lbs
70.0 in
in
Wing Span
33th Percentile
Elite (90th): 76.0 in
Difference: -6.0 in
🔄

Mobility

22 metrics measured

33
Overall
17 °
°
Right Dorsiflexion
82th Percentile
Elite (90th): 19 °
Difference: -2 °
15 °
°
Left Dorsiflexion
75th Percentile
Elite (90th): 18 °
Difference: -3 °
50 °
°
Right Plantar Flexion
10th Percentile
Elite (90th): 75 °
Difference: -25 °
60 °
°
Left Plantar Flexion
50th Percentile
Elite (90th): 75 °
Difference: -15 °
15 °
°
Right Hip Internal Rotation
5th Percentile
Elite (90th): 40 °
Difference: -25 °
21 °
°
Left Hip Internal Rotation
13th Percentile
Elite (90th): 40 °
Difference: -19 °
30 °
°
Left Hip External Rotation
10th Percentile
Elite (90th): 50 °
Difference: -20 °
12 °
°
Right Hip Extension
16th Percentile
Elite (90th): 25 °
Difference: -13 °
15 °
°
Left Hip Extension
25th Percentile
Elite (90th): 25 °
Difference: -10 °
78 °
°
Right Hip Flexion
42th Percentile
Elite (90th): 95 °
Difference: -17 °
85 °
°
Left Hip Flexion
62th Percentile
Elite (90th): 95 °
Difference: -10 °
45 °
°
Right Hip Abduction
50th Percentile
Elite (90th): 51 °
Difference: -6 °
40 °
°
Left Hip Abduction
25th Percentile
Elite (90th): 52 °
Difference: -12 °
28 °
°
Right Shoulder Internal Rotation
8th Percentile
Elite (90th): 70 °
Difference: -42 °
31 °
°
Left Shoulder Internal Rotation
8th Percentile
Elite (90th): 80 °
Difference: -49 °
98 °
°
Right Shoulder External Rotation
32th Percentile
Elite (90th): 120 °
Difference: -22 °
85 °
°
Left Shoulder External Rotation
10th Percentile
Elite (90th): 115 °
Difference: -30 °
25 °
°
Right Shoulder Horizontal Abduction
50th Percentile
Elite (90th): 35 °
Difference: -10 °
20 °
°
Left Shoulder Horizontal Abduction
10th Percentile
Elite (90th): 35 °
Difference: -15 °
40 °
°
Trunk Extension
59th Percentile
Elite (90th): 50 °
Difference: -10 °
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

37
Overall
21.0 in
in
Vertical Jump
15th Percentile
Elite (90th): 30.0 in
Difference: -9.0 in
17.0 in
in
Vertical Jump 225lbs
25th Percentile
Elite (90th): 24.3 in
Difference: -7.3 in
92 in
in
Broad Jump
37th Percentile
Elite (90th): 108 in
Difference: -16 in
72 in
in
Right Lateral Broad Jump
25th Percentile
Elite (90th): 86 in
Difference: -14 in
72 in
in
Left Lateral Broad Jump
25th Percentile
Elite (90th): 86 in
Difference: -14 in
1.790 s
s
10 Yard Sprint
5th Percentile
Elite (90th): 1.880 s
Difference: -0.090 s
280 lbs
lbs
Total Body Strength
10th Percentile
Elite (90th): 600 lbs
Difference: -320 lbs
107 lbs
lbs
Right Grip Strength
51th Percentile
Elite (90th): 130 lbs
Difference: -23 lbs
93 lbs
lbs
Left Grip Strength
30th Percentile
Elite (90th): 130 lbs
Difference: -37 lbs
1263 W
W
Right Rotational Power
95th Percentile
Elite (90th): 973 W
Difference: ✓ Elite
912 W
W
Left Rotational Power
90th Percentile
Elite (90th): 909 W
Difference: ✓ Elite
⚖️

Balance

6 metrics measured

50
Overall
25 in
in
Right Y-Balance 1
41th Percentile
Elite (90th): 36 in
Difference: -11 in
32 in
in
Right Y-Balance 2
37th Percentile
Elite (90th): 47 in
Difference: -15 in
38 in
in
Right Y-Balance 3
75th Percentile
Elite (90th): 46 in
Difference: -8 in
27 in
in
Left Y-Balance 1
56th Percentile
Elite (90th): 37 in
Difference: -10 in
35 in
in
Left Y-Balance 2
58th Percentile
Elite (90th): 46 in
Difference: -11 in
31 in
in
Left Y-Balance 3
31th Percentile
Elite (90th): 47 in
Difference: -16 in
🎯

Shoulder Strength

4 metrics measured

29
Overall
197 °
°
Right Shoulder Flexion
70th Percentile
Elite (90th): 209 °
Difference: -12 °
26 lbs
lbs
Right Shoulder Internal Rotation Strength
14th Percentile
Elite (90th): 55 lbs
Difference: -29 lbs
22 lbs
lbs
Right Shoulder External Rotation Strength
12th Percentile
Elite (90th): 49 lbs
Difference: -27 lbs
20 lbs
lbs
Scaption Right Back
19th Percentile
Elite (90th): 36 lbs
Difference: -16 lbs
⚙️

Mechanics

15 metrics measured

61
Overall
5 °
°
Hip Shoulder Separation Before Leg Drive
33th Percentile
Elite (90th): 21 °
Difference: -16 °
21 °
°
Trunk Flexion Before Leg Drive
22th Percentile
Elite (90th): 32 °
Difference: -11 °
61 °
°
Drive Knee Extension Before Leg Drive
50th Percentile
Elite (90th): 70 °
Difference: -9 °
54 °
°
Left Knee Flexion Front Foot Strike
75th Percentile
Elite (90th): 58 °
Difference: -4 °
86 °
°
Dominate Arm External Rotation Front Foot Strike
71th Percentile
Elite (90th): 97 °
Difference: -11 °
25 °
°
Dominate Arm Shoulder Abduction Front Foot Strike
23th Percentile
Elite (90th): 45 °
Difference: -20 °
592 °/s
°/s
Pelvis Rotation Speed Front Foot Strike
78th Percentile
Elite (90th): 673 °/s
Difference: -81 °/s
618 °/s
°/s
Trunk Rotation Speed Front Foot Strike
72th Percentile
Elite (90th): 756 °/s
Difference: -138 °/s
184 °
°
Dominate Arm External Rotation Maximum External Rotation
90th Percentile
Elite (90th): 184 °
Difference: ✓ Elite
-5 °
°
Dominate Arm Shoulder Abduction Maximum External Rotation
35th Percentile
Elite (90th): 9 °
Difference: -14 °
1082 °/s
°/s
Dominate Arm External Rotation Speed Maximum External Rotation
83th Percentile
Elite (90th): 1238 °/s
Difference: -156 °/s
39 °
°
Trunk Flexion Ball Release
82th Percentile
Elite (90th): 42 °
Difference: -3 °
101 °
°
Dominate Arm Shoulder Abduction Ball Release
78th Percentile
Elite (90th): 105 °
Difference: -4 °
-16 °
°
Dominate Arm Shoulder Horizontal Abduction Ball Release
41th Percentile
Elite (90th): -2 °
Difference: -14 °
59 °
°
Dominate Arm Extension Ball Release
78th Percentile
Elite (90th): 70 °
Difference: -11 °

Pitch Metrics

4 metrics measured

33
Overall
15 in
in
Vertical Break
41th Percentile
Elite (90th): 20 in
Difference: -5 in
5 in
in
Horizontal Break
41th Percentile
Elite (90th): 14 in
Difference: -9 in
1717 rpm
rpm
Total Spin
25th Percentile
Elite (90th): 2178 rpm
Difference: -461 rpm
73 mph
mph
Total Velocity
22th Percentile
Elite (90th): 86 mph
Difference: -13 mph
🎯

Brent Pourciau's Analysis

Road to 90

Personalized roadmap for Sean Hollendoner

📊 The Overview
Alright Sean, here's your Road to 90. You're currently sitting at 73 mph, which means you need about 17.0 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 your reality check. You're at 73 mph, and the AI model predicted 74.5 mph based on your physical profile. You're pretty much right where you'd expect to be. This means you're efficiently converting your athleticism into velocity — no major mechanical leaks, but also room to grow both physically AND mechanically.
Your mechanics efficiency is at the 34th percentile — there's definitely room to improve here. This isn't bad news, though. It means that as we work on your movement patterns and delivery, you'll see velocity gains without even getting stronger. The 3X Pitching Velocity Program addresses exactly this.
🎯 Your Biggest Opportunities
Based on the AI analysis, here are your biggest opportunities to add velocity:
Broad Jump +2.1 mph
Current: 92.0" (32th %ile) Target: 100.0" (62th %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: 144.0" (17th %ile) Target: 154.0" (47th %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 +1.8 mph
Current: 21.0" (10th %ile) Target: 25.0" (40th %ile)
Why it matters: Vertical jump measures your explosive power — your ability to generate force quickly. This directly translates to how hard you can drive off the rubber.
How we fix it: The Impulse Ground Force Trainer develops your ability to create force into the ground explosively. Pair it with box jumps, depth jumps, and Olympic lift variations in the 3X Program.
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 +5.9 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 +17.0 mph to hit 90, and the improvements above give you +19.8 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. Your mechanics efficiency score tells me there's velocity sitting on the table right now. The 3X Program will teach you how to sequence your body properly and transfer all that force into the ball. 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 92 in
Percentile 38th
Target 102 in
To Gain +10 in
Body Height +0.1 mph
Current 72 in
Percentile 50th
Target 72.8 in
To Gain +0.8 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 Shoulder Horizontal Abduction Ball Release and Dominate Arm Shoulder Abduction Front Foot Strike. Most of the energy to the ball comes through the trunk, so trunk acceleration and sequencing are the big rocks to move.
Dominate Arm Shoulder Horizontal Abduction Ball Release +0.2 mph
Current Percentile 42th
🎯 Your Action Plan
Movement Cues:
"Shin down, leverage, drive — use the ground."
Training Priorities:
Build Mass
Calorie surplus + structured strength phases. Mass equals gas — you need more raw material.
Explosive Power
Jump training (box jumps, bounds) + Olympic lift progressions (cleans, hang cleans). Train fast to be fast.
Mobility & Stability
Daily mobility work (hips, ankles, t-spine) + longer holds. Add single-leg stability for pelvic control.
🚀 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