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Jay Comboy – Player Evaluation Report – TopVelocity.ai
Jay Comboy

Jay Comboy

USA 19 years old Born Jul 12, 2006 Eval: Sep 3, 2022
RHP TopVelocity Evaluation
80
Velocity
6'0"
Height
161
Weight
🤖

AI Velocity Analysis

Machine learning prediction based on 1,535 elite athletes

Camp Velocity
80
mph
AI Prediction
74
mph
Based on physical metrics
Difference
+5.1
mph
Above prediction
Proficiency
85
%ile
Mechanics efficiency
💡
What this means: Excellent mechanics - above average efficiency
You're throwing 5.1 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 88.0" 21%ile
Goal 96.0" 51%ile
Lateral Broad Jump (Combined) +2.0 mph
Current 160.0" 60%ile
Goal 174.0" 90%ile
Vertical Jump +1.8 mph
Current 23.0" 22%ile
Goal 26.0" 52%ile
Vertical Jump 225 +1.8 mph
Current 16.0" 17%ile
Goal 19.0" 47%ile
10-Yard Sprint +1.5 mph
Current 1.720s 30%ile
Goal 1.640s 60%ile

🎯 Biomechanic Variables to Improve

Motion capture metrics from your throwing mechanics analysis.

Trunk Rotation Speed @ FFS +1.9 mph
Current 258.0°/s 6%ile
Goal 755.6°/s 36%ile
Pelvis Rotation Speed @ FFS +1.7 mph
Current 432.0°/s 41%ile
Goal 580.5°/s 71%ile
Total Potential Velocity Gain: +12.8 mph → Target: 90 mph
✓ Target of 90 mph is achievable!
You need +10.0 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +12.8 mph.
🎖️

TopVelocity Ranking

Based on the TopVelocity Evaluation System

Current Rank
Unranked
Youth Level 3 4/16 metrics
Youth Level 2 5/16 metrics
Youth Level 1 13/16 metrics
Vertical Jump 23.0 / ≥17.0
Broad Jump 88.0 / ≥72.0
10 Yard Sprint 1.7 / ≤2.1
Total Body Strength 420.0 / ≥200.0
Right Hip Internal Rotation 35.0 / ≥30.0
Left Hip Internal Rotation 25.0 / ≥30.0
Right Hip Extension 24.0 / ≥15.0
Left Hip Extension 22.0 / ≥15.0
Right Hip Flexion 85.0 / ≥80.0
Left Hip Flexion 84.0 / ≥80.0
Right Hip Abduction 48.0 / ≥45.0
Left Hip Abduction 48.0 / ≥45.0
Right Trunk Rotation 60.0 / ≥65.0
Left Trunk Rotation 60.0 / ≥65.0
Right Dorsiflexion 10.0 / ≥10.0
Left Dorsiflexion 12.0 / ≥10.0
📊 Performance Scores (Percentile)
🔄
51
Mobility
💪
40
Shoulder
41
Power
⚖️
45
Balance
🎯
46
Mechanics
🏆
45
Overall
📏

Anthropometric

3 metrics measured

38
Overall
72.0 in
in
Body Height
50th Percentile
Elite (90th): 75.0 in
Difference: -3.0 in
161 lbs
lbs
Body Weight
25th Percentile
Elite (90th): 216 lbs
Difference: -55 lbs
70.5 in
in
Wing Span
37th Percentile
Elite (90th): 76.0 in
Difference: -5.5 in
🔄

Mobility

23 metrics measured

51
Overall
10 °
°
Right Dorsiflexion
50th Percentile
Elite (90th): 19 °
Difference: -9 °
12 °
°
Left Dorsiflexion
60th Percentile
Elite (90th): 18 °
Difference: -6 °
50 °
°
Right Plantar Flexion
10th Percentile
Elite (90th): 75 °
Difference: -25 °
50 °
°
Left Plantar Flexion
10th Percentile
Elite (90th): 75 °
Difference: -25 °
35 °
°
Right Hip Internal Rotation
75th Percentile
Elite (90th): 40 °
Difference: -5 °
25 °
°
Left Hip Internal Rotation
25th Percentile
Elite (90th): 40 °
Difference: -15 °
35 °
°
Right Hip External Rotation
25th Percentile
Elite (90th): 54 °
Difference: -18 °
30 °
°
Left Hip External Rotation
10th Percentile
Elite (90th): 50 °
Difference: -20 °
24 °
°
Right Hip Extension
85th Percentile
Elite (90th): 25 °
Difference: -1 °
22 °
°
Left Hip Extension
75th Percentile
Elite (90th): 25 °
Difference: -3 °
85 °
°
Right Hip Flexion
62th Percentile
Elite (90th): 95 °
Difference: -10 °
84 °
°
Left Hip Flexion
60th Percentile
Elite (90th): 95 °
Difference: -11 °
48 °
°
Right Hip Abduction
65th Percentile
Elite (90th): 51 °
Difference: -3 °
48 °
°
Left Hip Abduction
65th Percentile
Elite (90th): 52 °
Difference: -4 °
42 °
°
Right Shoulder Internal Rotation
35th Percentile
Elite (90th): 70 °
Difference: -28 °
40 °
°
Left Shoulder Internal Rotation
25th Percentile
Elite (90th): 80 °
Difference: -40 °
102 °
°
Right Shoulder External Rotation
42th Percentile
Elite (90th): 120 °
Difference: -18 °
97 °
°
Left Shoulder External Rotation
42th Percentile
Elite (90th): 115 °
Difference: -18 °
35 °
°
Right Shoulder Horizontal Abduction
90th Percentile
Elite (90th): 35 °
Difference: ✓ Elite
35 °
°
Left Shoulder Horizontal Abduction
90th Percentile
Elite (90th): 35 °
Difference: ✓ Elite
45 °
°
Trunk Extension
75th Percentile
Elite (90th): 50 °
Difference: -5 °
60 °
°
Right Trunk Rotation
50th Percentile
Elite (90th): 75 °
Difference: -15 °
60 °
°
Left Trunk Rotation
50th Percentile
Elite (90th): 70 °
Difference: -10 °
💪

Strength & Power

11 metrics measured

41
Overall
23.0 in
in
Vertical Jump
25th Percentile
Elite (90th): 30.0 in
Difference: -7.0 in
16.0 in
in
Vertical Jump 225lbs
20th Percentile
Elite (90th): 24.3 in
Difference: -8.3 in
88 in
in
Broad Jump
25th Percentile
Elite (90th): 108 in
Difference: -20 in
80 in
in
Right Lateral Broad Jump
62th Percentile
Elite (90th): 86 in
Difference: -6 in
80 in
in
Left Lateral Broad Jump
62th Percentile
Elite (90th): 86 in
Difference: -6 in
1.720 s
s
10 Yard Sprint
5th Percentile
Elite (90th): 1.880 s
Difference: -0.160 s
420 lbs
lbs
Total Body Strength
52th Percentile
Elite (90th): 600 lbs
Difference: -180 lbs
116 lbs
lbs
Right Grip Strength
67th Percentile
Elite (90th): 130 lbs
Difference: -14 lbs
116 lbs
lbs
Left Grip Strength
75th Percentile
Elite (90th): 130 lbs
Difference: -14 lbs
553 W
W
Right Rotational Power
34th Percentile
Elite (90th): 973 W
Difference: -420 W
429 W
W
Left Rotational Power
21th Percentile
Elite (90th): 909 W
Difference: -480 W
⚖️

Balance

6 metrics measured

45
Overall
14 in
in
Right Y-Balance 1
3th Percentile
Elite (90th): 36 in
Difference: -22 in
42 in
in
Right Y-Balance 2
80th Percentile
Elite (90th): 47 in
Difference: -5 in
41 in
in
Right Y-Balance 3
80th Percentile
Elite (90th): 46 in
Difference: -5 in
13 in
in
Left Y-Balance 1
3th Percentile
Elite (90th): 37 in
Difference: -24 in
31 in
in
Left Y-Balance 2
32th Percentile
Elite (90th): 46 in
Difference: -15 in
38 in
in
Left Y-Balance 3
70th Percentile
Elite (90th): 47 in
Difference: -9 in
🎯

Shoulder Strength

4 metrics measured

40
Overall
195 °
°
Right Shoulder Flexion
65th Percentile
Elite (90th): 209 °
Difference: -14 °
35 lbs
lbs
Right Shoulder Internal Rotation Strength
39th Percentile
Elite (90th): 55 lbs
Difference: -20 lbs
26 lbs
lbs
Right Shoulder External Rotation Strength
22th Percentile
Elite (90th): 49 lbs
Difference: -23 lbs
24 lbs
lbs
Scaption Right Back
35th Percentile
Elite (90th): 36 lbs
Difference: -12 lbs
⚙️

Mechanics

15 metrics measured

46
Overall
7 °
°
Hip Shoulder Separation Before Leg Drive
41th Percentile
Elite (90th): 21 °
Difference: -14 °
23 °
°
Trunk Flexion Before Leg Drive
33th Percentile
Elite (90th): 32 °
Difference: -9 °
43 °
°
Drive Knee Extension Before Leg Drive
6th Percentile
Elite (90th): 70 °
Difference: -27 °
40 °
°
Left Knee Flexion Front Foot Strike
23th Percentile
Elite (90th): 58 °
Difference: -18 °
-27 °
°
Dominate Arm External Rotation Front Foot Strike
1th Percentile
Elite (90th): 97 °
Difference: -124 °
61 °
°
Dominate Arm Shoulder Abduction Front Foot Strike
95th Percentile
Elite (90th): 45 °
Difference: ✓ Elite
432 °/s
°/s
Pelvis Rotation Speed Front Foot Strike
38th Percentile
Elite (90th): 673 °/s
Difference: -241 °/s
258 °/s
°/s
Trunk Rotation Speed Front Foot Strike
15th Percentile
Elite (90th): 756 °/s
Difference: -498 °/s
162 °
°
Dominate Arm External Rotation Maximum External Rotation
48th Percentile
Elite (90th): 184 °
Difference: -22 °
10 °
°
Dominate Arm Shoulder Abduction Maximum External Rotation
91th Percentile
Elite (90th): 9 °
Difference: ✓ Elite
821 °/s
°/s
Dominate Arm External Rotation Speed Maximum External Rotation
71th Percentile
Elite (90th): 1238 °/s
Difference: -416 °/s
23 °
°
Trunk Flexion Ball Release
31th Percentile
Elite (90th): 42 °
Difference: -19 °
91 °
°
Dominate Arm Shoulder Abduction Ball Release
25th Percentile
Elite (90th): 105 °
Difference: -14 °
1 °
°
Dominate Arm Shoulder Horizontal Abduction Ball Release
93th Percentile
Elite (90th): -2 °
Difference: ✓ Elite
61 °
°
Dominate Arm Extension Ball Release
80th Percentile
Elite (90th): 70 °
Difference: -9 °

Pitch Metrics

2 metrics measured

33
Overall
0 °
°
Spin Axis
3th Percentile
Elite (90th): 1200 °
Difference: -1200 °
80 mph
mph
Total Velocity
62th Percentile
Elite (90th): 86 mph
Difference: -6 mph
🎯

Brent Pourciau's Analysis

Road to 90

Personalized roadmap for Jay Comboy

📊 The Overview
Alright Jay, here's your Road to 90. You're currently sitting at 80 mph, which means you need about 10.0 mph to hit your target of 90. Your profile is in the 45th 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
Jay, here's what jumps out at me — you're throwing 80 mph, but based on your physical profile, our AI model predicted you'd be around 74.9 mph. That's a +5.1 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 85th 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: 88.0" (21th %ile) Target: 96.0" (51th %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: 160.0" (60th %ile) Target: 174.0" (90th %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: 23.0" (22th %ile) Target: 26.0" (52th %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 +3.6 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 +10.0 mph to hit 90, and the improvements above give you +12.8 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. 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 1.0 mph of your velocity gap.
Broad Jump +0.9 mph
Current 88 in
Percentile 25th
Target 102 in
To Gain +14 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 ankle dorsiflexion, Left Hip Abduction (mobility), Left Lateral Broad Jump (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 Front Foot Strike and Dominate Arm External Rotation Maximum External Rotation. 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 Front Foot Strike +0.3 mph
Current Percentile 1th
🎯 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