Not Cached Load: 1.09s
Trey Sampson – Player Evaluation Report – TopVelocity.ai
Trey Sampson

Trey Sampson

USA 14 years old Born Aug 12, 2011 Eval: Jul 20, 2024
RHP TopVelocity Evaluation
66
Velocity
5'5"
Height
113
Weight
🤖

AI Velocity Analysis

Machine learning prediction based on 1,535 elite athletes

Camp Velocity
66
mph
AI Prediction
64
mph
Based on physical metrics
Difference
+1.7
mph
Above prediction
Proficiency
63
%ile
Mechanics efficiency
💡
What this means: Good mechanics - room for improvement
You're throwing 1.7 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 76.0" 4%ile
Goal 92.0" 34%ile
Lateral Broad Jump (Combined) +2.0 mph
Current 136.0" 7%ile
Goal 150.0" 37%ile
Vertical Jump 225 +1.8 mph
Current 6.0" 0%ile
Goal 17.0" 30%ile
Left Grip +1.8 mph
Current 61.0 lbs 2%ile
Goal 95.0 lbs 32%ile
Right Grip +1.8 mph
Current 61.0 lbs 3%ile
Goal 100.0 lbs 33%ile
Vertical Jump +1.8 mph
Current 19.0" 4%ile
Goal 24.0" 34%ile
10-Yard Sprint +1.5 mph
Current 2.010s 1%ile
Goal 1.710s 31%ile
Total Body Strength +1.4 mph
Current 200.0 lbs 2%ile
Goal 350.0 lbs 32%ile

🎯 Biomechanic Variables to Improve

Motion capture metrics from your throwing mechanics analysis.

Trunk Rotation Speed @ FFS +1.9 mph
Current 308.0°/s 9%ile
Goal 755.6°/s 39%ile
Pelvis Rotation Speed @ FFS +1.7 mph
Current 262.0°/s 10%ile
Goal 673.0°/s 40%ile
Arm Rotation Speed @ MER +1.1 mph
Current 294.0°/s 17%ile
Goal 1,237.5°/s 47%ile
Shoulder Abduction @ MER +0.7 mph
Current -7.0° 16%ile
Goal 9.0° 46%ile
Shoulder Horiz Abd @ BR +0.6 mph
Current -19.0° 17%ile
Goal -2.0° 47%ile
Arm Extension @ Ball Release +0.5 mph
Current 31.0° 5%ile
Goal 70.0° 35%ile
Total Potential Velocity Gain: +20.7 mph → Target: 90 mph
Working Toward 90 mph
You need +24.0 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +20.7 mph.
3.3 mph gap remaining
Consider setting an interim target of 86 mph first.
🎖️

TopVelocity Ranking

Based on the TopVelocity Evaluation System

Current Rank
Unranked
Youth Level 3 2/16 metrics
Youth Level 2 5/16 metrics
Youth Level 1 13/16 metrics
Vertical Jump 19.0 / ≥17.0
Broad Jump 76.0 / ≥72.0
10 Yard Sprint 2.0 / ≤2.1
Total Body Strength 200.0 / ≥200.0
Right Hip Internal Rotation 52.0 / ≥30.0
Left Hip Internal Rotation 45.0 / ≥30.0
Right Hip Extension 12.0 / ≥15.0
Left Hip Extension 12.0 / ≥15.0
Right Hip Flexion 75.0 / ≥80.0
Left Hip Flexion 85.0 / ≥80.0
Right Hip Abduction 50.0 / ≥45.0
Left Hip Abduction 48.0 / ≥45.0
Right Trunk Rotation 75.0 / ≥65.0
Left Trunk Rotation 75.0 / ≥65.0
Right Dorsiflexion 10.0 / ≥10.0
Left Dorsiflexion 10.0 / ≥10.0
📊 Performance Scores (Percentile)
🔄
62
Mobility
💪
18
Shoulder
15
Power
⚖️
33
Balance
🎯
49
Mechanics
🏆
35
Overall
📏

Anthropometric

3 metrics measured

4
Overall
64.5 in
in
Body Height
4th Percentile
Elite (90th): 75.0 in
Difference: -10.5 in
113 lbs
lbs
Body Weight
4th Percentile
Elite (90th): 216 lbs
Difference: -103 lbs
65.0 in
in
Wing Span
5th Percentile
Elite (90th): 76.0 in
Difference: -11.0 in
🔄

Mobility

23 metrics measured

62
Overall
10 °
°
Right Dorsiflexion
50th Percentile
Elite (90th): 19 °
Difference: -9 °
10 °
°
Left Dorsiflexion
50th Percentile
Elite (90th): 18 °
Difference: -8 °
50 °
°
Right Plantar Flexion
10th Percentile
Elite (90th): 75 °
Difference: -25 °
60 °
°
Left Plantar Flexion
50th Percentile
Elite (90th): 75 °
Difference: -15 °
52 °
°
Right Hip Internal Rotation
95th Percentile
Elite (90th): 40 °
Difference: ✓ Elite
45 °
°
Left Hip Internal Rotation
95th Percentile
Elite (90th): 40 °
Difference: ✓ Elite
42 °
°
Right Hip External Rotation
60th Percentile
Elite (90th): 54 °
Difference: -12 °
50 °
°
Left Hip External Rotation
90th Percentile
Elite (90th): 50 °
Difference: ✓ Elite
12 °
°
Right Hip Extension
16th Percentile
Elite (90th): 25 °
Difference: -13 °
12 °
°
Left Hip Extension
16th Percentile
Elite (90th): 25 °
Difference: -13 °
75 °
°
Right Hip Flexion
32th Percentile
Elite (90th): 95 °
Difference: -20 °
85 °
°
Left Hip Flexion
62th Percentile
Elite (90th): 95 °
Difference: -10 °
50 °
°
Right Hip Abduction
75th Percentile
Elite (90th): 51 °
Difference: -1 °
48 °
°
Left Hip Abduction
65th Percentile
Elite (90th): 52 °
Difference: -4 °
35 °
°
Right Shoulder Internal Rotation
19th Percentile
Elite (90th): 70 °
Difference: -35 °
40 °
°
Left Shoulder Internal Rotation
25th Percentile
Elite (90th): 80 °
Difference: -40 °
122 °
°
Right Shoulder External Rotation
92th Percentile
Elite (90th): 120 °
Difference: ✓ Elite
106 °
°
Left Shoulder External Rotation
75th Percentile
Elite (90th): 115 °
Difference: -9 °
40 °
°
Right Shoulder Horizontal Abduction
95th Percentile
Elite (90th): 35 °
Difference: ✓ Elite
35 °
°
Left Shoulder Horizontal Abduction
90th Percentile
Elite (90th): 35 °
Difference: ✓ Elite
48 °
°
Trunk Extension
84th Percentile
Elite (90th): 50 °
Difference: -2 °
75 °
°
Right Trunk Rotation
90th Percentile
Elite (90th): 75 °
Difference: ✓ Elite
75 °
°
Left Trunk Rotation
95th Percentile
Elite (90th): 70 °
Difference: ✓ Elite
💪

Strength & Power

11 metrics measured

15
Overall
19.0 in
in
Vertical Jump
7th Percentile
Elite (90th): 30.0 in
Difference: -11.0 in
6.0 in
in
Vertical Jump 225lbs
2th Percentile
Elite (90th): 24.3 in
Difference: -18.3 in
76 in
in
Broad Jump
6th Percentile
Elite (90th): 108 in
Difference: -32 in
67 in
in
Right Lateral Broad Jump
8th Percentile
Elite (90th): 86 in
Difference: -19 in
69 in
in
Left Lateral Broad Jump
13th Percentile
Elite (90th): 86 in
Difference: -17 in
2.010 s
s
10 Yard Sprint
6th Percentile
Elite (90th): 1.880 s
Difference: +0.130 s
200 lbs
lbs
Total Body Strength
4th Percentile
Elite (90th): 600 lbs
Difference: -400 lbs
61 lbs
lbs
Right Grip Strength
4th Percentile
Elite (90th): 130 lbs
Difference: -69 lbs
61 lbs
lbs
Left Grip Strength
4th Percentile
Elite (90th): 130 lbs
Difference: -69 lbs
756 W
W
Right Rotational Power
69th Percentile
Elite (90th): 973 W
Difference: -217 W
496 W
W
Left Rotational Power
32th Percentile
Elite (90th): 909 W
Difference: -413 W
⚖️

Balance

6 metrics measured

33
Overall
21 in
in
Right Y-Balance 1
10th Percentile
Elite (90th): 36 in
Difference: -15 in
32 in
in
Right Y-Balance 2
37th Percentile
Elite (90th): 47 in
Difference: -15 in
35 in
in
Right Y-Balance 3
60th Percentile
Elite (90th): 46 in
Difference: -11 in
24 in
in
Left Y-Balance 1
33th Percentile
Elite (90th): 37 in
Difference: -13 in
31 in
in
Left Y-Balance 2
32th Percentile
Elite (90th): 46 in
Difference: -15 in
30 in
in
Left Y-Balance 3
25th Percentile
Elite (90th): 47 in
Difference: -17 in
🎯

Shoulder Strength

4 metrics measured

18
Overall
188 °
°
Right Shoulder Flexion
47th Percentile
Elite (90th): 209 °
Difference: -21 °
26 lbs
lbs
Right Shoulder Internal Rotation Strength
14th Percentile
Elite (90th): 55 lbs
Difference: -29 lbs
19 lbs
lbs
Right Shoulder External Rotation Strength
6th Percentile
Elite (90th): 49 lbs
Difference: -30 lbs
15 lbs
lbs
Scaption Right Back
5th Percentile
Elite (90th): 36 lbs
Difference: -21 lbs
⚙️

Mechanics

15 metrics measured

49
Overall
11 °
°
Hip Shoulder Separation Before Leg Drive
58th Percentile
Elite (90th): 21 °
Difference: -10 °
29 °
°
Trunk Flexion Before Leg Drive
75th Percentile
Elite (90th): 32 °
Difference: -3 °
62 °
°
Drive Knee Extension Before Leg Drive
55th Percentile
Elite (90th): 70 °
Difference: -8 °
55 °
°
Left Knee Flexion Front Foot Strike
78th Percentile
Elite (90th): 58 °
Difference: -3 °
84 °
°
Dominate Arm External Rotation Front Foot Strike
67th Percentile
Elite (90th): 97 °
Difference: -13 °
31 °
°
Dominate Arm Shoulder Abduction Front Foot Strike
45th Percentile
Elite (90th): 45 °
Difference: -14 °
262 °/s
°/s
Pelvis Rotation Speed Front Foot Strike
15th Percentile
Elite (90th): 673 °/s
Difference: -411 °/s
308 °/s
°/s
Trunk Rotation Speed Front Foot Strike
19th Percentile
Elite (90th): 756 °/s
Difference: -448 °/s
174 °
°
Dominate Arm External Rotation Maximum External Rotation
72th Percentile
Elite (90th): 184 °
Difference: -10 °
-7 °
°
Dominate Arm Shoulder Abduction Maximum External Rotation
25th Percentile
Elite (90th): 9 °
Difference: -16 °
294 °/s
°/s
Dominate Arm External Rotation Speed Maximum External Rotation
25th Percentile
Elite (90th): 1238 °/s
Difference: -944 °/s
36 °
°
Trunk Flexion Ball Release
75th Percentile
Elite (90th): 42 °
Difference: -6 °
103 °
°
Dominate Arm Shoulder Abduction Ball Release
84th Percentile
Elite (90th): 105 °
Difference: -2 °
-19 °
°
Dominate Arm Shoulder Horizontal Abduction Ball Release
29th Percentile
Elite (90th): -2 °
Difference: -17 °
31 °
°
Dominate Arm Extension Ball Release
12th Percentile
Elite (90th): 70 °
Difference: -39 °

Pitch Metrics

4 metrics measured

47
Overall
16 in
in
Vertical Break
50th Percentile
Elite (90th): 20 in
Difference: -4 in
18 in
in
Horizontal Break
95th Percentile
Elite (90th): 14 in
Difference: ✓ Elite
1795 rpm
rpm
Total Spin
36th Percentile
Elite (90th): 2178 rpm
Difference: -383 rpm
66 mph
mph
Total Velocity
8th Percentile
Elite (90th): 86 mph
Difference: -20 mph
🎯

Brent Pourciau's Analysis

Road to 90

Personalized roadmap for Trey Sampson

📊 The Overview
Alright Trey, here's your Road to 90. You're currently sitting at 66 mph, which means you need about 24.0 mph to hit your target of 90. Your profile is in the 35th 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
Trey, let me break this down for you. You're sitting at 66 mph right now, and our AI model — which has analyzed over 800 elite athletes — predicted 64.3 mph based on your physical metrics. You're actually beating that prediction by 1.7 mph. That means your mechanics are doing their job. You're not leaving velocity on the table from inefficiency.
Your mechanics efficiency is at the 63th percentile — that's solid, right around average for our database. You're neither leaving a ton on the table nor maximizing everything. This is a good sign because it means improvements in BOTH your physical profile AND your mechanics will translate to velocity.
🎯 Your Biggest Opportunities
Based on the AI analysis, here are your biggest opportunities to add velocity:
Broad Jump +2.1 mph
Current: 76.0" (4th %ile) Target: 92.0" (34th %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: 136.0" (7th %ile) Target: 150.0" (37th %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: 6.0" (0th %ile) Target: 17.0" (30th %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 +6.5 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?
Let me be honest with you — getting to 90 mph is a big goal. The improvements I've outlined give you about +20.7 mph, which would put you around 86 mph. That's a great interim target. The remaining 3.3 mph will require elite-level development — we're talking about pushing past 90th percentile on multiple metrics. Set 86 mph as your first milestone, crush that, then we'll re-evaluate and map out the next phase.
🚀 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 Total Body Strength. Together, these account for about 4.6 mph of your velocity gap.
Broad Jump +2.5 mph
Current 76 in
Percentile 7th
Target 102 in
To Gain +26 in
Total Body Strength +2.2 mph
Current 200 lbs
Percentile 4th
Target 533.3 lbs
To Gain +333.3 lbs
🔧 Supporting Work
After that, it's about the supporting package: Left Grip Strength, vertical jump (power/stability), Body Height. 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 Pelvis Rotation Speed Front Foot Strike and Trunk Rotation Speed 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.
Pelvis Rotation Speed Front Foot Strike +1.6 mph
Current Percentile 15th
🎯 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.
🚀 What's Next
At your age, development is rapid and everything helps. Train consistently across all areas — as your profile climbs, the plan will become more specific. Re-test every 3-4 months to track your progress.

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Achievement Milestones

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