Seth Stewart
LHP
TopVelocity Evaluation
67
Velocity
6'0"
Height
146
Weight
AI Velocity Analysis
Machine learning prediction based on 1,535 elite athletes
Camp Velocity
67
mph
AI Prediction
72
mph
Based on physical metrics
Difference
5.1
mph
Below prediction
Proficiency
13
%ile
Mechanics efficiency
What this means: Needs work - large gap between potential and performance
There's potential to gain 5.1 mph through improved mechanics and training.
There's potential to gain 5.1 mph through improved mechanics and training.
💪 Athletic Variables to Improve
Physical metrics that directly impact velocity. Focus on these for maximum gains.
Broad Jump
+2.1 mph
Current
84.0"
12%ile
→
Goal
94.0"
42%ile
Lateral Broad Jump (Combined)
+2.0 mph
Current
150.0"
32%ile
→
Goal
160.0"
62%ile
Vertical Jump
+1.8 mph
Current
19.0"
4%ile
→
Goal
24.0"
34%ile
Left Grip
+1.8 mph
Current
70.0 lbs
5%ile
→
Goal
98.0 lbs
35%ile
Right Grip
+1.8 mph
Current
80.0 lbs
8%ile
→
Goal
100.0 lbs
38%ile
Weight
+1.5 mph
Current
146.0 lbs
13%ile
→
Goal
176.2 lbs
43%ile
10-Yard Sprint
+1.5 mph
Current
1.670s
50%ile
→
Goal
1.580s
80%ile
Total Body Strength
+1.4 mph
Current
330.0 lbs
22%ile
→
Goal
400.0 lbs
52%ile
Total Potential Velocity Gain:
+13.9 mph
→ Target: 90 mph
Working Toward 90 mph
You need +22.6 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +13.9 mph.
Improving to 90th percentile in the metrics above can provide +13.9 mph.
8.7 mph gap remaining
Set an achievable interim target of 81 mph, then reassess.
Set an achievable interim target of 81 mph, then reassess.
TopVelocity Ranking
Based on the TopVelocity Evaluation System
Current Rank
Unranked
Youth Level 3
3/16 metrics
Youth Level 2
5/16 metrics
📊 Performance Scores (Percentile)
46
Mobility
19
Power
33
Overall
Anthropometric
3 metrics measured
38
Overall
72.0 in
in
Body Height
50th Percentile
Elite (90th):
75.0 in
Difference:
-3.0 in
146 lbs
lbs
Body Weight
13th Percentile
Elite (90th):
216 lbs
Difference:
-70 lbs
72.0 in
in
Wing Span
50th Percentile
Elite (90th):
76.0 in
Difference:
-4.0 in
Mobility
23 metrics measured
46
Overall
15 °
°
Right Dorsiflexion
75th Percentile
Elite (90th):
19 °
Difference:
-4 °
15 °
°
Left Dorsiflexion
75th Percentile
Elite (90th):
18 °
Difference:
-3 °
45 °
°
Right Plantar Flexion
5th Percentile
Elite (90th):
75 °
Difference:
-30 °
45 °
°
Left Plantar Flexion
5th Percentile
Elite (90th):
75 °
Difference:
-30 °
30 °
°
Right Hip Internal Rotation
50th Percentile
Elite (90th):
40 °
Difference:
-10 °
20 °
°
Left Hip Internal Rotation
10th Percentile
Elite (90th):
40 °
Difference:
-20 °
50 °
°
Right Hip External Rotation
83th Percentile
Elite (90th):
54 °
Difference:
-4 °
40 °
°
Left Hip External Rotation
50th Percentile
Elite (90th):
50 °
Difference:
-10 °
15 °
°
Right Hip Extension
25th Percentile
Elite (90th):
25 °
Difference:
-10 °
15 °
°
Left Hip Extension
25th Percentile
Elite (90th):
25 °
Difference:
-10 °
70 °
°
Right Hip Flexion
19th Percentile
Elite (90th):
95 °
Difference:
-25 °
80 °
°
Left Hip Flexion
50th Percentile
Elite (90th):
95 °
Difference:
-15 °
35 °
°
Right Hip Abduction
5th Percentile
Elite (90th):
51 °
Difference:
-16 °
35 °
°
Left Hip Abduction
5th Percentile
Elite (90th):
52 °
Difference:
-17 °
60 °
°
Right Shoulder Internal Rotation
75th Percentile
Elite (90th):
70 °
Difference:
-10 °
50 °
°
Left Shoulder Internal Rotation
50th Percentile
Elite (90th):
80 °
Difference:
-30 °
120 °
°
Right Shoulder External Rotation
90th Percentile
Elite (90th):
120 °
Difference:
✓ Elite
120 °
°
Left Shoulder External Rotation
95th Percentile
Elite (90th):
115 °
Difference:
✓ Elite
30 °
°
Right Shoulder Horizontal Abduction
75th Percentile
Elite (90th):
35 °
Difference:
-5 °
30 °
°
Left Shoulder Horizontal Abduction
75th Percentile
Elite (90th):
35 °
Difference:
-5 °
25 °
°
Trunk Extension
10th Percentile
Elite (90th):
50 °
Difference:
-25 °
65 °
°
Right Trunk Rotation
62th Percentile
Elite (90th):
75 °
Difference:
-10 °
60 °
°
Left Trunk Rotation
50th Percentile
Elite (90th):
70 °
Difference:
-10 °
Strength & Power
8 metrics measured
19
Overall
19.0 in
in
Vertical Jump
7th Percentile
Elite (90th):
30.0 in
Difference:
-11.0 in
84 in
in
Broad Jump
17th Percentile
Elite (90th):
108 in
Difference:
-24 in
70 in
in
Right Lateral Broad Jump
17th Percentile
Elite (90th):
86 in
Difference:
-16 in
80 in
in
Left Lateral Broad Jump
62th Percentile
Elite (90th):
86 in
Difference:
-6 in
1.670 s
s
10 Yard Sprint
5th Percentile
Elite (90th):
1.880 s
Difference:
-0.210 s
330 lbs
lbs
Total Body Strength
20th Percentile
Elite (90th):
600 lbs
Difference:
-270 lbs
80 lbs
lbs
Right Grip Strength
10th Percentile
Elite (90th):
130 lbs
Difference:
-50 lbs
70 lbs
lbs
Left Grip Strength
7th Percentile
Elite (90th):
130 lbs
Difference:
-60 lbs
Pitch Metrics
5 metrics measured
13
Overall
1200 °
°
Spin Axis
10th Percentile
Elite (90th):
1200 °
Difference:
+0 °
-15 in
in
Vertical Break
0th Percentile
Elite (90th):
20 in
Difference:
-35 in
-16 in
in
Horizontal Break
4th Percentile
Elite (90th):
14 in
Difference:
-30 in
1836 rpm
rpm
Total Spin
42th Percentile
Elite (90th):
2178 rpm
Difference:
-342 rpm
67 mph
mph
Total Velocity
9th Percentile
Elite (90th):
86 mph
Difference:
-19 mph
🎯
Brent Pourciau's Analysis
Road to 90
Personalized roadmap for Seth Stewart
The Overview
Alright Seth, here's your Road to 90. You're currently sitting at 67.4 mph, which means you need about 22.6 mph to hit your target of 90. You're early in your development journey at the 33th 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
Seth, let me be real with you — this is actually exciting news. You're throwing 67.4 mph, but based on your physical metrics, the AI model says you should be around 72.5 mph. That 5.1 mph gap? That's not a problem — that's POTENTIAL. It means once we clean up your mechanics and movement patterns, you've got velocity sitting there waiting to be unlocked.
Your mechanics efficiency is at the 13th percentile — and honestly, this is where the opportunity is. Your physical tools are there, but your delivery isn't converting them efficiently. The good news? Mechanical improvements often come faster than physical gains. Once we optimize your sequencing and timing, you'll see immediate velocity jumps.
Your Biggest Opportunities
Based on the AI analysis, here are your biggest opportunities to add velocity:
Broad Jump
+2.1 mph
Current: 84.0" (12th %ile)
→
Target: 94.0" (42th %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: 150.0" (32th %ile)
→
Target: 160.0" (62th %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: 19.0" (4th %ile)
→
Target: 24.0" (34th %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
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 +13.9 mph, which would put you around 81 mph. That's a great interim target. The remaining 8.7 mph will require elite-level development — we're talking about pushing past 90th percentile on multiple metrics. Set 81 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. 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 vertical jump. Together, these account for about 6.3 mph of your velocity gap.
Broad Jump +2.9 mph
Current
84 in
Percentile
18th
Target
102 in
To Gain
+18 in
Vertical Jump +3.4 mph
Current
19 in
Percentile
8th
Target
28 in
To Gain
+9 in
Supporting Work
After that, it's about the supporting package: left hip internal rotation (mobility), Left Grip Strength, Right Grip Strength (power/stability). 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.
Achievement Milestones
Evaluated
Ranked
80+ MPH
85+ MPH
90+ Club
Pro Level