Dawson Spencer
RHP
TopVelocity Evaluation
55
Velocity
4'11"
Height
84
Weight
AI Velocity Analysis
Machine learning prediction based on 1,535 elite athletes
Camp Velocity
55
mph
AI Prediction
56
mph
Based on physical metrics
Difference
1.9
mph
Below prediction
Proficiency
31
%ile
Mechanics efficiency
What this means: Below average mechanics - significant improvement potential
💪 Athletic Variables to Improve
Physical metrics that directly impact velocity. Focus on these for maximum gains.
Broad Jump
+2.1 mph
Current
66.0"
1%ile
→
Goal
90.4"
31%ile
Lateral Broad Jump (Combined)
+2.0 mph
Current
120.0"
2%ile
→
Goal
149.6"
32%ile
Left Grip
+1.8 mph
Current
40.0 lbs
0%ile
→
Goal
95.0 lbs
30%ile
Right Grip
+1.8 mph
Current
39.0 lbs
1%ile
→
Goal
97.2 lbs
31%ile
Vertical Jump
+1.8 mph
Current
17.5"
2%ile
→
Goal
24.0"
32%ile
10-Yard Sprint
+1.5 mph
Current
2.170s
0%ile
→
Goal
1.718s
30%ile
Weight
+1.5 mph
Current
84.0 lbs
2%ile
→
Goal
166.6 lbs
32%ile
Total Body Strength
+1.4 mph
Current
140.0 lbs
1%ile
→
Goal
350.0 lbs
31%ile
🎯 Biomechanic Variables to Improve
Motion capture metrics from your throwing mechanics analysis.
Trunk Rotation Speed @ FFS
+1.9 mph
Current
165.0°/s
5%ile
→
Goal
755.6°/s
35%ile
Pelvis Rotation Speed @ FFS
+1.7 mph
Current
436.0°/s
42%ile
→
Goal
586.8°/s
72%ile
Trunk Flexion @ Ball Release
+1.3 mph
Current
21.0°
24%ile
→
Goal
30.3°
54%ile
Arm External Rotation @ MER
+1.2 mph
Current
148.0°
18%ile
→
Goal
184.0°
48%ile
Arm Rotation Speed @ MER
+1.1 mph
Current
712.0°/s
38%ile
→
Goal
857.9°/s
68%ile
Arm External Rotation @ FFS
+1.0 mph
Current
17.0°
1%ile
→
Goal
97.0°
31%ile
Total Potential Velocity Gain:
+22.1 mph
→ Target: 90 mph
Working Toward 90 mph
You need +35.0 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +22.1 mph.
Improving to 90th percentile in the metrics above can provide +22.1 mph.
12.9 mph gap remaining
Set an achievable interim target of 77 mph, then reassess.
Set an achievable interim target of 77 mph, then reassess.
TopVelocity Ranking
Based on the TopVelocity Evaluation System
Current Rank
Unranked
Youth Level 3
0/16 metrics
Youth Level 2
2/16 metrics
📊 Performance Scores (Percentile)
44
Mobility
26
Shoulder
16
Power
32
Balance
38
Mechanics
31
Overall
Anthropometric
3 metrics measured
3
Overall
59.0 in
in
Body Height
2th Percentile
Elite (90th):
75.0 in
Difference:
-16.0 in
84 lbs
lbs
Body Weight
1th Percentile
Elite (90th):
216 lbs
Difference:
-132 lbs
60.0 in
in
Wing Span
4th Percentile
Elite (90th):
76.0 in
Difference:
-16.0 in
Mobility
23 metrics measured
44
Overall
15 °
°
Right Dorsiflexion
75th Percentile
Elite (90th):
19 °
Difference:
-4 °
18 °
°
Left Dorsiflexion
90th Percentile
Elite (90th):
18 °
Difference:
✓ Elite
60 °
°
Right Plantar Flexion
50th Percentile
Elite (90th):
75 °
Difference:
-15 °
60 °
°
Left Plantar Flexion
50th Percentile
Elite (90th):
75 °
Difference:
-15 °
20 °
°
Right Hip Internal Rotation
25th Percentile
Elite (90th):
40 °
Difference:
-20 °
30 °
°
Left Hip Internal Rotation
50th Percentile
Elite (90th):
40 °
Difference:
-10 °
30 °
°
Right Hip External Rotation
10th Percentile
Elite (90th):
54 °
Difference:
-24 °
30 °
°
Left Hip External Rotation
10th Percentile
Elite (90th):
50 °
Difference:
-20 °
23 °
°
Right Hip Extension
80th Percentile
Elite (90th):
25 °
Difference:
-2 °
18 °
°
Left Hip Extension
40th Percentile
Elite (90th):
25 °
Difference:
-7 °
72 °
°
Right Hip Flexion
23th Percentile
Elite (90th):
95 °
Difference:
-23 °
63 °
°
Left Hip Flexion
8th Percentile
Elite (90th):
95 °
Difference:
-32 °
45 °
°
Right Hip Abduction
50th Percentile
Elite (90th):
51 °
Difference:
-6 °
40 °
°
Left Hip Abduction
25th Percentile
Elite (90th):
52 °
Difference:
-12 °
28 °
°
Right Shoulder Internal Rotation
8th Percentile
Elite (90th):
70 °
Difference:
-42 °
30 °
°
Left Shoulder Internal Rotation
7th Percentile
Elite (90th):
80 °
Difference:
-50 °
120 °
°
Right Shoulder External Rotation
90th Percentile
Elite (90th):
120 °
Difference:
✓ Elite
105 °
°
Left Shoulder External Rotation
70th Percentile
Elite (90th):
115 °
Difference:
-10 °
28 °
°
Right Shoulder Horizontal Abduction
65th Percentile
Elite (90th):
35 °
Difference:
-7 °
25 °
°
Left Shoulder Horizontal Abduction
50th Percentile
Elite (90th):
35 °
Difference:
-10 °
47 °
°
Trunk Extension
81th Percentile
Elite (90th):
50 °
Difference:
-3 °
60 °
°
Right Trunk Rotation
50th Percentile
Elite (90th):
75 °
Difference:
-15 °
45 °
°
Left Trunk Rotation
10th Percentile
Elite (90th):
70 °
Difference:
-25 °
Strength & Power
10 metrics measured
16
Overall
17.5 in
in
Vertical Jump
4th Percentile
Elite (90th):
30.0 in
Difference:
-12.5 in
66 in
in
Broad Jump
4th Percentile
Elite (90th):
108 in
Difference:
-42 in
60 in
in
Right Lateral Broad Jump
4th Percentile
Elite (90th):
86 in
Difference:
-26 in
60 in
in
Left Lateral Broad Jump
4th Percentile
Elite (90th):
86 in
Difference:
-26 in
2.170 s
s
10 Yard Sprint
7th Percentile
Elite (90th):
1.880 s
Difference:
+0.290 s
140 lbs
lbs
Total Body Strength
2th Percentile
Elite (90th):
600 lbs
Difference:
-460 lbs
39 lbs
lbs
Right Grip Strength
2th Percentile
Elite (90th):
130 lbs
Difference:
-91 lbs
40 lbs
lbs
Left Grip Strength
3th Percentile
Elite (90th):
130 lbs
Difference:
-90 lbs
755 W
W
Right Rotational Power
69th Percentile
Elite (90th):
973 W
Difference:
-218 W
638 W
W
Left Rotational Power
58th Percentile
Elite (90th):
909 W
Difference:
-271 W
Balance
6 metrics measured
32
Overall
19 in
in
Right Y-Balance 1
5th Percentile
Elite (90th):
36 in
Difference:
-17 in
30 in
in
Right Y-Balance 2
25th Percentile
Elite (90th):
47 in
Difference:
-17 in
27 in
in
Right Y-Balance 3
15th Percentile
Elite (90th):
46 in
Difference:
-19 in
24 in
in
Left Y-Balance 1
33th Percentile
Elite (90th):
37 in
Difference:
-13 in
35 in
in
Left Y-Balance 2
58th Percentile
Elite (90th):
46 in
Difference:
-11 in
35 in
in
Left Y-Balance 3
55th Percentile
Elite (90th):
47 in
Difference:
-12 in
Shoulder Strength
4 metrics measured
26
Overall
211 °
°
Right Shoulder Flexion
91th Percentile
Elite (90th):
209 °
Difference:
✓ Elite
17 lbs
lbs
Right Shoulder Internal Rotation Strength
4th Percentile
Elite (90th):
55 lbs
Difference:
-38 lbs
18 lbs
lbs
Right Shoulder External Rotation Strength
5th Percentile
Elite (90th):
49 lbs
Difference:
-31 lbs
14 lbs
lbs
Scaption Right Back
4th Percentile
Elite (90th):
36 lbs
Difference:
-22 lbs
Mechanics
15 metrics measured
38
Overall
5 °
°
Hip Shoulder Separation Before Leg Drive
33th Percentile
Elite (90th):
21 °
Difference:
-16 °
18 °
°
Trunk Flexion Before Leg Drive
13th Percentile
Elite (90th):
32 °
Difference:
-14 °
61 °
°
Drive Knee Extension Before Leg Drive
50th Percentile
Elite (90th):
70 °
Difference:
-9 °
44 °
°
Left Knee Flexion Front Foot Strike
29th Percentile
Elite (90th):
58 °
Difference:
-14 °
17 °
°
Dominate Arm External Rotation Front Foot Strike
4th Percentile
Elite (90th):
97 °
Difference:
-80 °
45 °
°
Dominate Arm Shoulder Abduction Front Foot Strike
90th Percentile
Elite (90th):
45 °
Difference:
✓ Elite
436 °/s
°/s
Pelvis Rotation Speed Front Foot Strike
39th Percentile
Elite (90th):
673 °/s
Difference:
-237 °/s
165 °/s
°/s
Trunk Rotation Speed Front Foot Strike
9th Percentile
Elite (90th):
756 °/s
Difference:
-591 °/s
148 °
°
Dominate Arm External Rotation Maximum External Rotation
23th Percentile
Elite (90th):
184 °
Difference:
-36 °
4 °
°
Dominate Arm Shoulder Abduction Maximum External Rotation
75th Percentile
Elite (90th):
9 °
Difference:
-5 °
712 °/s
°/s
Dominate Arm External Rotation Speed Maximum External Rotation
62th Percentile
Elite (90th):
1238 °/s
Difference:
-526 °/s
21 °
°
Trunk Flexion Ball Release
25th Percentile
Elite (90th):
42 °
Difference:
-21 °
89 °
°
Dominate Arm Shoulder Abduction Ball Release
18th Percentile
Elite (90th):
105 °
Difference:
-16 °
-11 °
°
Dominate Arm Shoulder Horizontal Abduction Ball Release
62th Percentile
Elite (90th):
-2 °
Difference:
-9 °
40 °
°
Dominate Arm Extension Ball Release
36th Percentile
Elite (90th):
70 °
Difference:
-30 °
Pitch Metrics
4 metrics measured
24
Overall
12 in
in
Vertical Break
17th Percentile
Elite (90th):
20 in
Difference:
-8 in
9 in
in
Horizontal Break
62th Percentile
Elite (90th):
14 in
Difference:
-5 in
1531 rpm
rpm
Total Spin
10th Percentile
Elite (90th):
2178 rpm
Difference:
-647 rpm
55 mph
mph
Total Velocity
4th Percentile
Elite (90th):
86 mph
Difference:
-31 mph
🎯
Brent Pourciau's Analysis
Road to 90
Personalized roadmap for Dawson Spencer
The Overview
Alright Dawson, here's your Road to 90. You're currently sitting at 55 mph, which means you need about 35.0 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
Dawson, here's your reality check. You're at 55 mph, and the AI model predicted 56.9 mph based on your physical profile. You're pretty much right where you'd expect to be. This means you're efficiently converting your athleticism into velocity — no major mechanical leaks, but also room to grow both physically AND mechanically.
Your mechanics efficiency is at the 31th percentile — there's definitely room to improve here. This isn't bad news, though. It means that as we work on your movement patterns and delivery, you'll see velocity gains without even getting stronger. The 3X Pitching Velocity Program addresses exactly this.
Your Biggest Opportunities
Based on the AI analysis, here are your biggest opportunities to add velocity:
Broad Jump
+2.1 mph
Current: 66.0" (1th %ile)
→
Target: 90.4" (31th %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: 120.0" (2th %ile)
→
Target: 149.6" (32th %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: 40.0 lbs (0th %ile)
→
Target: 95.0 lbs (30th %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 +8.2 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 +22.1 mph, which would put you around 77 mph. That's a great interim target. The remaining 12.9 mph will require elite-level development — we're talking about pushing past 90th percentile on multiple metrics. Set 77 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 Total Body Strength. Together, these account for about 5.8 mph of your velocity gap.
Broad Jump +3.1 mph
Current
66 in
Percentile
4th
Target
102 in
To Gain
+36 in
Total Body Strength +2.7 mph
Current
140 lbs
Percentile
3th
Target
533.3 lbs
To Gain
+393.3 lbs
Supporting Work
After that, it's about the supporting package: vertical 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 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.
Dominate Arm External Rotation Maximum External Rotation +2 mph
Current Percentile
23th
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