Stacy Nelson
RHP
TopVelocity Evaluation
76
Velocity
5'11"
Height
156
Weight
AI Velocity Analysis
Machine learning prediction based on 1,535 elite athletes
Camp Velocity
76
mph
AI Prediction
75
mph
Based on physical metrics
Difference
+1.0
mph
Above prediction
Proficiency
57
%ile
Mechanics efficiency
What this means: Average mechanics - typical for athlete profile
You're throwing 1.0 mph faster than athletes with similar physical profiles — great mechanics!
You're throwing 1.0 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
100.0"
61%ile
→
Goal
108.0"
91%ile
Left Grip
+1.8 mph
Current
80.0 lbs
10%ile
→
Goal
100.0 lbs
40%ile
Right Grip
+1.8 mph
Current
100.0 lbs
32%ile
→
Goal
110.0 lbs
62%ile
Vertical Jump 225
+1.8 mph
Current
18.5"
40%ile
→
Goal
21.9"
70%ile
Vertical Jump
+1.8 mph
Current
26.0"
50%ile
→
Goal
29.0"
80%ile
Weight
+1.5 mph
Current
156.0 lbs
21%ile
→
Goal
182.7 lbs
51%ile
10-Yard Sprint
+1.5 mph
Current
1.720s
30%ile
→
Goal
1.640s
60%ile
Total Body Strength
+1.4 mph
Current
300.0 lbs
11%ile
→
Goal
379.2 lbs
41%ile
Total Potential Velocity Gain:
+13.7 mph
→ Target: 90 mph
Working Toward 90 mph
You need +14.0 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +13.7 mph.
Improving to 90th percentile in the metrics above can provide +13.7 mph.
0.3 mph gap remaining
This small gap can likely be closed with continued development.
This small gap can likely be closed with continued development.
TopVelocity Ranking
Based on the TopVelocity Evaluation System
Current Rank
Unranked
Youth Level 3
4/16 metrics
Youth Level 2
5/16 metrics
📊 Performance Scores (Percentile)
43
Mobility
41
Power
42
Overall
Anthropometric
3 metrics measured
36
Overall
71.0 in
in
Body Height
37th Percentile
Elite (90th):
75.0 in
Difference:
-4.0 in
156 lbs
lbs
Body Weight
21th Percentile
Elite (90th):
216 lbs
Difference:
-60 lbs
72.0 in
in
Wing Span
50th Percentile
Elite (90th):
76.0 in
Difference:
-4.0 in
Mobility
23 metrics measured
43
Overall
5 °
°
Right Dorsiflexion
5th Percentile
Elite (90th):
19 °
Difference:
-14 °
5 °
°
Left Dorsiflexion
5th Percentile
Elite (90th):
18 °
Difference:
-13 °
70 °
°
Right Plantar Flexion
75th Percentile
Elite (90th):
75 °
Difference:
-5 °
75 °
°
Left Plantar Flexion
90th Percentile
Elite (90th):
75 °
Difference:
✓ Elite
30 °
°
Right Hip Internal Rotation
50th Percentile
Elite (90th):
40 °
Difference:
-10 °
30 °
°
Left Hip Internal Rotation
50th Percentile
Elite (90th):
40 °
Difference:
-10 °
25 °
°
Right Hip External Rotation
5th Percentile
Elite (90th):
54 °
Difference:
-28 °
30 °
°
Left Hip External Rotation
10th Percentile
Elite (90th):
50 °
Difference:
-20 °
10 °
°
Right Hip Extension
5th Percentile
Elite (90th):
25 °
Difference:
-15 °
10 °
°
Left Hip Extension
5th Percentile
Elite (90th):
25 °
Difference:
-15 °
95 °
°
Right Hip Flexion
90th Percentile
Elite (90th):
95 °
Difference:
✓ Elite
75 °
°
Left Hip Flexion
32th Percentile
Elite (90th):
95 °
Difference:
-20 °
45 °
°
Right Hip Abduction
50th Percentile
Elite (90th):
51 °
Difference:
-6 °
45 °
°
Left Hip Abduction
50th Percentile
Elite (90th):
52 °
Difference:
-7 °
80 °
°
Right Shoulder Internal Rotation
95th Percentile
Elite (90th):
70 °
Difference:
✓ Elite
80 °
°
Left Shoulder Internal Rotation
90th Percentile
Elite (90th):
80 °
Difference:
✓ Elite
100 °
°
Right Shoulder External Rotation
37th Percentile
Elite (90th):
120 °
Difference:
-20 °
100 °
°
Left Shoulder External Rotation
50th Percentile
Elite (90th):
115 °
Difference:
-15 °
25 °
°
Right Shoulder Horizontal Abduction
50th Percentile
Elite (90th):
35 °
Difference:
-10 °
25 °
°
Left Shoulder Horizontal Abduction
50th Percentile
Elite (90th):
35 °
Difference:
-10 °
40 °
°
Trunk Extension
59th Percentile
Elite (90th):
50 °
Difference:
-10 °
50 °
°
Right Trunk Rotation
10th Percentile
Elite (90th):
75 °
Difference:
-25 °
50 °
°
Left Trunk Rotation
25th Percentile
Elite (90th):
70 °
Difference:
-20 °
Strength & Power
9 metrics measured
41
Overall
26.0 in
in
Vertical Jump
58th Percentile
Elite (90th):
30.0 in
Difference:
-4.0 in
18.5 in
in
Vertical Jump 225lbs
37th Percentile
Elite (90th):
24.3 in
Difference:
-5.8 in
100 in
in
Broad Jump
66th Percentile
Elite (90th):
108 in
Difference:
-8 in
78 in
in
Right Lateral Broad Jump
50th Percentile
Elite (90th):
86 in
Difference:
-8 in
84 in
in
Left Lateral Broad Jump
82th Percentile
Elite (90th):
86 in
Difference:
-2 in
1.720 s
s
10 Yard Sprint
5th Percentile
Elite (90th):
1.880 s
Difference:
-0.160 s
300 lbs
lbs
Total Body Strength
14th Percentile
Elite (90th):
600 lbs
Difference:
-300 lbs
100 lbs
lbs
Right Grip Strength
36th Percentile
Elite (90th):
130 lbs
Difference:
-30 lbs
80 lbs
lbs
Left Grip Strength
15th Percentile
Elite (90th):
130 lbs
Difference:
-50 lbs
Pitch Metrics
5 metrics measured
46
Overall
1200 °
°
Spin Axis
10th Percentile
Elite (90th):
1200 °
Difference:
+0 °
16 in
in
Vertical Break
47th Percentile
Elite (90th):
20 in
Difference:
-4 in
14 in
in
Horizontal Break
89th Percentile
Elite (90th):
14 in
Difference:
-0 in
1851 rpm
rpm
Total Spin
44th Percentile
Elite (90th):
2178 rpm
Difference:
-327 rpm
76 mph
mph
Total Velocity
37th Percentile
Elite (90th):
86 mph
Difference:
-10 mph
🎯
Brent Pourciau's Analysis
Road to 90
Personalized roadmap for Stacy Nelson
The Overview
Alright Stacy, here's your Road to 90. You're currently sitting at 76 mph, which means you need about 14.0 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
Stacy, let me break this down for you. You're sitting at 76 mph right now, and our AI model — which has analyzed over 800 elite athletes — predicted 75 mph based on your physical metrics. You're actually beating that prediction by 1.0 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 57th 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: 100.0" (61th %ile)
→
Target: 108.0" (91th %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.
Left Grip Strength
+1.8 mph
Current: 80.0 lbs (10th %ile)
→
Target: 100.0 lbs (40th %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.
Right Grip Strength
+1.8 mph
Current: 100.0 lbs (32th %ile)
→
Target: 110.0 lbs (62th %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 = +5.7 mph potential
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 +13.7 mph, which would put you around 89 mph. That's a great interim target. The remaining 0.3 mph gap can be closed through consistent training, mechanical refinement, and maturation. It's going to take time and work, but it's doable.
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 Total Body Strength and broad jump. Together, these account for about 2.4 mph of your velocity gap.
Total Body Strength +2.1 mph
Current
300 lbs
Percentile
14th
Target
533.3 lbs
To Gain
+233.3 lbs
Broad Jump +0.3 mph
Current
100 in
Percentile
67th
Target
102 in
To Gain
+2 in
Supporting Work
After that, it's about the supporting package: left ankle dorsiflexion, Left Hip Abduction (mobility), 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.
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.
Achievement Milestones
Evaluated
Ranked
80+ MPH
85+ MPH
90+ Club
Pro Level