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Jax Fabacher – Player Evaluation Report – TopVelocity.ai
Jax Fabacher

Jax Fabacher

USA 17 years old Born Aug 13, 2008 Eval: Jun 21, 2025
RHP TopVelocity Evaluation
74
Velocity
5'5"
Height
172
Weight
🤖

AI Velocity Analysis

Machine learning prediction based on 1,535 elite athletes

Camp Velocity
74
mph
AI Prediction
69
mph
Based on physical metrics
Difference
+4.9
mph
Above prediction
Proficiency
84
%ile
Mechanics efficiency
💡
What this means: Excellent mechanics - above average efficiency
You're throwing 4.9 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 80.0" 7%ile
Goal 94.0" 37%ile
Lateral Broad Jump (Combined) +2.0 mph
Current 128.0" 4%ile
Goal 150.0" 34%ile
Left Grip +1.8 mph
Current 94.0 lbs 27%ile
Goal 108.0 lbs 57%ile
Right Grip +1.8 mph
Current 88.0 lbs 17%ile
Goal 105.0 lbs 47%ile
Vertical Jump 225 +1.8 mph
Current 15.0" 12%ile
Goal 19.0" 42%ile
Vertical Jump +1.8 mph
Current 20.0" 6%ile
Goal 24.0" 36%ile
Weight +1.5 mph
Current 172.0 lbs 38%ile
Goal 194.5 lbs 68%ile
10-Yard Sprint +1.5 mph
Current 1.880s 5%ile
Goal 1.700s 35%ile

🎯 Biomechanic Variables to Improve

Motion capture metrics from your throwing mechanics analysis.

Trunk Flexion @ Ball Release +1.3 mph
Current 18.0° 18%ile
Goal 42.0° 48%ile
Arm External Rotation @ MER +1.2 mph
Current 136.0° 8%ile
Goal 184.0° 38%ile
Arm Rotation Speed @ MER +1.1 mph
Current 671.0°/s 33%ile
Goal 779.9°/s 63%ile
Arm External Rotation @ FFS +1.0 mph
Current 67.0° 34%ile
Goal 82.4° 64%ile
Total Potential Velocity Gain: +18.9 mph → Target: 90 mph
✓ Target of 90 mph is achievable!
You need +16.0 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +18.9 mph.
🎖️

TopVelocity Ranking

Based on the TopVelocity Evaluation System

Current Rank
Unranked
Youth Level 3 2/16 metrics
Youth Level 2 4/16 metrics
Youth Level 1 6/16 metrics
Vertical Jump 20.0 / ≥17.0
Broad Jump 80.0 / ≥72.0
10 Yard Sprint 1.9 / ≤2.1
Total Body Strength 450.0 / ≥200.0
Right Hip Internal Rotation 25.0 / ≥30.0
Left Hip Internal Rotation 30.0 / ≥30.0
Right Hip Extension 12.0 / ≥15.0
Left Hip Extension 12.0 / ≥15.0
Right Hip Flexion 73.0 / ≥80.0
Left Hip Flexion 70.0 / ≥80.0
Right Hip Abduction 42.0 / ≥45.0
Left Hip Abduction 45.0 / ≥45.0
Right Trunk Rotation 40.0 / ≥65.0
Left Trunk Rotation 40.0 / ≥65.0
Right Dorsiflexion 6.0 / ≥10.0
Left Dorsiflexion 5.0 / ≥10.0
📊 Performance Scores (Percentile)
🔄
27
Mobility
💪
39
Shoulder
29
Power
⚖️
9
Balance
🎯
51
Mechanics
🏆
31
Overall
📏

Anthropometric

3 metrics measured

16
Overall
65.0 in
in
Body Height
4th Percentile
Elite (90th): 75.0 in
Difference: -10.0 in
172 lbs
lbs
Body Weight
38th Percentile
Elite (90th): 216 lbs
Difference: -44 lbs
63.0 in
in
Wing Span
4th Percentile
Elite (90th): 76.0 in
Difference: -13.0 in
🔄

Mobility

23 metrics measured

27
Overall
6 °
°
Right Dorsiflexion
15th Percentile
Elite (90th): 19 °
Difference: -13 °
5 °
°
Left Dorsiflexion
5th Percentile
Elite (90th): 18 °
Difference: -13 °
50 °
°
Right Plantar Flexion
10th Percentile
Elite (90th): 75 °
Difference: -25 °
55 °
°
Left Plantar Flexion
25th Percentile
Elite (90th): 75 °
Difference: -20 °
25 °
°
Right Hip Internal Rotation
37th Percentile
Elite (90th): 40 °
Difference: -15 °
30 °
°
Left Hip Internal Rotation
50th Percentile
Elite (90th): 40 °
Difference: -10 °
35 °
°
Right Hip External Rotation
25th Percentile
Elite (90th): 54 °
Difference: -18 °
30 °
°
Left Hip External Rotation
10th Percentile
Elite (90th): 50 °
Difference: -20 °
12 °
°
Right Hip Extension
16th Percentile
Elite (90th): 25 °
Difference: -13 °
12 °
°
Left Hip Extension
16th Percentile
Elite (90th): 25 °
Difference: -13 °
73 °
°
Right Hip Flexion
25th Percentile
Elite (90th): 95 °
Difference: -22 °
70 °
°
Left Hip Flexion
19th Percentile
Elite (90th): 95 °
Difference: -25 °
42 °
°
Right Hip Abduction
35th Percentile
Elite (90th): 51 °
Difference: -9 °
45 °
°
Left Hip Abduction
50th Percentile
Elite (90th): 52 °
Difference: -7 °
50 °
°
Right Shoulder Internal Rotation
54th Percentile
Elite (90th): 70 °
Difference: -20 °
40 °
°
Left Shoulder Internal Rotation
25th Percentile
Elite (90th): 80 °
Difference: -40 °
100 °
°
Right Shoulder External Rotation
37th Percentile
Elite (90th): 120 °
Difference: -20 °
85 °
°
Left Shoulder External Rotation
10th Percentile
Elite (90th): 115 °
Difference: -30 °
28 °
°
Right Shoulder Horizontal Abduction
65th Percentile
Elite (90th): 35 °
Difference: -7 °
25 °
°
Left Shoulder Horizontal Abduction
50th Percentile
Elite (90th): 35 °
Difference: -10 °
30 °
°
Trunk Extension
25th Percentile
Elite (90th): 50 °
Difference: -20 °
40 °
°
Right Trunk Rotation
4th Percentile
Elite (90th): 75 °
Difference: -35 °
40 °
°
Left Trunk Rotation
5th Percentile
Elite (90th): 70 °
Difference: -30 °
💪

Strength & Power

11 metrics measured

29
Overall
20.0 in
in
Vertical Jump
10th Percentile
Elite (90th): 30.0 in
Difference: -10.0 in
15.0 in
in
Vertical Jump 225lbs
15th Percentile
Elite (90th): 24.3 in
Difference: -9.3 in
80 in
in
Broad Jump
10th Percentile
Elite (90th): 108 in
Difference: -28 in
66 in
in
Right Lateral Broad Jump
7th Percentile
Elite (90th): 86 in
Difference: -20 in
62 in
in
Left Lateral Broad Jump
4th Percentile
Elite (90th): 86 in
Difference: -24 in
1.880 s
s
10 Yard Sprint
6th Percentile
Elite (90th): 1.880 s
Difference: +0.000 s
450 lbs
lbs
Total Body Strength
61th Percentile
Elite (90th): 600 lbs
Difference: -150 lbs
88 lbs
lbs
Right Grip Strength
18th Percentile
Elite (90th): 130 lbs
Difference: -42 lbs
94 lbs
lbs
Left Grip Strength
31th Percentile
Elite (90th): 130 lbs
Difference: -36 lbs
879 W
W
Right Rotational Power
82th Percentile
Elite (90th): 973 W
Difference: -94 W
696 W
W
Left Rotational Power
67th Percentile
Elite (90th): 909 W
Difference: -213 W
⚖️

Balance

6 metrics measured

9
Overall
22 in
in
Right Y-Balance 1
17th Percentile
Elite (90th): 36 in
Difference: -14 in
28 in
in
Right Y-Balance 2
15th Percentile
Elite (90th): 47 in
Difference: -19 in
26 in
in
Right Y-Balance 3
10th Percentile
Elite (90th): 46 in
Difference: -20 in
15 in
in
Left Y-Balance 1
3th Percentile
Elite (90th): 37 in
Difference: -22 in
23 in
in
Left Y-Balance 2
4th Percentile
Elite (90th): 46 in
Difference: -23 in
22 in
in
Left Y-Balance 3
4th Percentile
Elite (90th): 47 in
Difference: -25 in
🎯

Shoulder Strength

4 metrics measured

39
Overall
172 °
°
Right Shoulder Flexion
13th Percentile
Elite (90th): 209 °
Difference: -37 °
40 lbs
lbs
Right Shoulder Internal Rotation Strength
56th Percentile
Elite (90th): 55 lbs
Difference: -15 lbs
35 lbs
lbs
Right Shoulder External Rotation Strength
50th Percentile
Elite (90th): 49 lbs
Difference: -14 lbs
24 lbs
lbs
Scaption Right Back
35th Percentile
Elite (90th): 36 lbs
Difference: -12 lbs
⚙️

Mechanics

15 metrics measured

51
Overall
10 °
°
Hip Shoulder Separation Before Leg Drive
54th Percentile
Elite (90th): 21 °
Difference: -11 °
34 °
°
Trunk Flexion Before Leg Drive
93th Percentile
Elite (90th): 32 °
Difference: ✓ Elite
63 °
°
Drive Knee Extension Before Leg Drive
60th Percentile
Elite (90th): 70 °
Difference: -7 °
52 °
°
Left Knee Flexion Front Foot Strike
65th Percentile
Elite (90th): 58 °
Difference: -6 °
67 °
°
Dominate Arm External Rotation Front Foot Strike
40th Percentile
Elite (90th): 97 °
Difference: -30 °
28 °
°
Dominate Arm Shoulder Abduction Front Foot Strike
33th Percentile
Elite (90th): 45 °
Difference: -17 °
604 °/s
°/s
Pelvis Rotation Speed Front Foot Strike
80th Percentile
Elite (90th): 673 °/s
Difference: -69 °/s
689 °/s
°/s
Trunk Rotation Speed Front Foot Strike
81th Percentile
Elite (90th): 756 °/s
Difference: -67 °/s
136 °
°
Dominate Arm External Rotation Maximum External Rotation
13th Percentile
Elite (90th): 184 °
Difference: -48 °
0 °
°
Dominate Arm Shoulder Abduction Maximum External Rotation
58th Percentile
Elite (90th): 9 °
Difference: -9 °
671 °/s
°/s
Dominate Arm External Rotation Speed Maximum External Rotation
59th Percentile
Elite (90th): 1238 °/s
Difference: -566 °/s
18 °
°
Trunk Flexion Ball Release
19th Percentile
Elite (90th): 42 °
Difference: -24 °
95 °
°
Dominate Arm Shoulder Abduction Ball Release
45th Percentile
Elite (90th): 105 °
Difference: -10 °
-24 °
°
Dominate Arm Shoulder Horizontal Abduction Ball Release
16th Percentile
Elite (90th): -2 °
Difference: -22 °
43 °
°
Dominate Arm Extension Ball Release
44th Percentile
Elite (90th): 70 °
Difference: -27 °

Pitch Metrics

4 metrics measured

37
Overall
11 in
in
Vertical Break
10th Percentile
Elite (90th): 20 in
Difference: -9 in
16 in
in
Horizontal Break
95th Percentile
Elite (90th): 14 in
Difference: ✓ Elite
1621 rpm
rpm
Total Spin
17th Percentile
Elite (90th): 2178 rpm
Difference: -557 rpm
74 mph
mph
Total Velocity
25th Percentile
Elite (90th): 86 mph
Difference: -12 mph
🎯

Brent Pourciau's Analysis

Road to 90

Personalized roadmap for Jax Fabacher

📊 The Overview
Alright Jax, here's your Road to 90. You're currently sitting at 74 mph, which means you need about 16.0 mph to hit your target of 90. You're early in your development journey at the 31th percentile. At this stage, almost everything you work on will help — mobility, strength, power, and motor control all move the needle.
🤖 What The AI Analysis Tells Me
Jax, here's what jumps out at me — you're throwing 74 mph, but based on your physical profile, our AI model predicted you'd be around 69.1 mph. That's a +4.9 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 84th 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: 80.0" (7th %ile) Target: 94.0" (37th %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: 128.0" (4th %ile) Target: 150.0" (34th %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.
Left Grip Strength +1.8 mph
Current: 94.0 lbs (27th %ile) Target: 108.0 lbs (57th %ile)
Why it matters: Grip strength is the end of the kinetic chain. All that force you generate has to transfer through your hand to the ball.
How we fix it: Farmer carries, dead hangs, wrist work, and specific grip training in the 3X Program. This also helps with spin rate and command.
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 +4.6 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 +16.0 mph to hit 90, and the improvements above give you +18.9 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 vertical jump. Together, these account for about 2.8 mph of your velocity gap.
Broad Jump +1.4 mph
Current 80 in
Percentile 10th
Target 102 in
To Gain +22 in
Vertical Jump +1.4 mph
Current 20 in
Percentile 10th
Target 28 in
To Gain +8 in
🔧 Supporting Work
After that, it's about the supporting package: left ankle dorsiflexion (mobility), Left Lateral Broad Jump, Left Grip Strength (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 Dominate Arm External Rotation Maximum External Rotation and Dominate Arm External Rotation 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 External Rotation Maximum External Rotation +1.2 mph
Current Percentile 14th
🎯 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