Austin Slezak
RHP
TopVelocity Evaluation
83
Velocity
6'3"
Height
207
Weight
AI Velocity Analysis
Machine learning prediction based on 1,535 elite athletes
Camp Velocity
83
mph
AI Prediction
79
mph
Based on physical metrics
Difference
+4.0
mph
Above prediction
Proficiency
79
%ile
Mechanics efficiency
What this means: Excellent mechanics - above average efficiency
You're throwing 4.0 mph faster than athletes with similar physical profiles — great mechanics!
You're throwing 4.0 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
96.0"
44%ile
→
Goal
102.0"
74%ile
Left Grip
+1.8 mph
Current
106.0 lbs
56%ile
→
Goal
125.0 lbs
86%ile
Vertical Jump
+1.8 mph
Current
26.0"
50%ile
→
Goal
29.0"
80%ile
Vertical Jump 225
+1.8 mph
Current
20.0"
50%ile
→
Goal
23.0"
80%ile
🎯 Biomechanic Variables to Improve
Motion capture metrics from your throwing mechanics analysis.
Trunk Rotation Speed @ FFS
+1.9 mph
Current
497.0°/s
35%ile
→
Goal
595.9°/s
65%ile
Pelvis Rotation Speed @ FFS
+1.7 mph
Current
417.0°/s
36%ile
→
Goal
554.8°/s
66%ile
Total Potential Velocity Gain:
+11.1 mph
→ Target: 90 mph
✓ Target of 90 mph is achievable!
You need +7.0 mph to reach your target.
Improving to 90th percentile in the metrics above can provide +11.1 mph.
Improving to 90th percentile in the metrics above can provide +11.1 mph.
TopVelocity Ranking
Based on the TopVelocity Evaluation System
Current Rank
Unranked
TopV Pro
1/16 metrics
Level 3
2/16 metrics
Level 2
8/16 metrics
📊 Performance Scores (Percentile)
72
Mobility
72
Shoulder
53
Power
38
Balance
61
Mechanics
59
Overall
Anthropometric
3 metrics measured
84
Overall
74.5 in
in
Body Height
86th Percentile
Elite (90th):
75.0 in
Difference:
-0.5 in
207 lbs
lbs
Body Weight
81th Percentile
Elite (90th):
216 lbs
Difference:
-9 lbs
75.0 in
in
Wing Span
82th Percentile
Elite (90th):
76.0 in
Difference:
-1.0 in
Mobility
23 metrics measured
72
Overall
15 °
°
Right Dorsiflexion
75th Percentile
Elite (90th):
19 °
Difference:
-4 °
15 °
°
Left Dorsiflexion
75th Percentile
Elite (90th):
18 °
Difference:
-3 °
55 °
°
Right Plantar Flexion
25th Percentile
Elite (90th):
75 °
Difference:
-20 °
55 °
°
Left Plantar Flexion
25th Percentile
Elite (90th):
75 °
Difference:
-20 °
40 °
°
Right Hip Internal Rotation
90th Percentile
Elite (90th):
40 °
Difference:
✓ Elite
50 °
°
Left Hip Internal Rotation
95th Percentile
Elite (90th):
40 °
Difference:
✓ Elite
40 °
°
Right Hip External Rotation
50th Percentile
Elite (90th):
54 °
Difference:
-14 °
35 °
°
Left Hip External Rotation
34th Percentile
Elite (90th):
50 °
Difference:
-15 °
20 °
°
Right Hip Extension
62th Percentile
Elite (90th):
25 °
Difference:
-5 °
25 °
°
Left Hip Extension
90th Percentile
Elite (90th):
25 °
Difference:
✓ Elite
95 °
°
Right Hip Flexion
90th Percentile
Elite (90th):
95 °
Difference:
✓ Elite
90 °
°
Left Hip Flexion
75th Percentile
Elite (90th):
95 °
Difference:
-5 °
45 °
°
Right Hip Abduction
50th Percentile
Elite (90th):
51 °
Difference:
-6 °
45 °
°
Left Hip Abduction
50th Percentile
Elite (90th):
52 °
Difference:
-7 °
75 °
°
Right Shoulder Internal Rotation
92th Percentile
Elite (90th):
70 °
Difference:
✓ Elite
85 °
°
Left Shoulder Internal Rotation
95th Percentile
Elite (90th):
80 °
Difference:
✓ Elite
120 °
°
Right Shoulder External Rotation
90th Percentile
Elite (90th):
120 °
Difference:
✓ Elite
115 °
°
Left Shoulder External Rotation
90th Percentile
Elite (90th):
115 °
Difference:
✓ Elite
35 °
°
Right Shoulder Horizontal Abduction
90th Percentile
Elite (90th):
35 °
Difference:
✓ Elite
35 °
°
Left Shoulder Horizontal Abduction
90th Percentile
Elite (90th):
35 °
Difference:
✓ Elite
60 °
°
Trunk Extension
95th Percentile
Elite (90th):
50 °
Difference:
✓ Elite
70 °
°
Right Trunk Rotation
75th Percentile
Elite (90th):
75 °
Difference:
-5 °
60 °
°
Left Trunk Rotation
50th Percentile
Elite (90th):
70 °
Difference:
-10 °
Strength & Power
11 metrics measured
53
Overall
26.0 in
in
Vertical Jump
58th Percentile
Elite (90th):
30.0 in
Difference:
-4.0 in
20.0 in
in
Vertical Jump 225lbs
50th Percentile
Elite (90th):
24.3 in
Difference:
-4.3 in
96 in
in
Broad Jump
50th Percentile
Elite (90th):
108 in
Difference:
-12 in
84 in
in
Right Lateral Broad Jump
82th Percentile
Elite (90th):
86 in
Difference:
-2 in
84 in
in
Left Lateral Broad Jump
82th Percentile
Elite (90th):
86 in
Difference:
-2 in
1.740 s
s
10 Yard Sprint
5th Percentile
Elite (90th):
1.880 s
Difference:
-0.140 s
410 lbs
lbs
Total Body Strength
50th Percentile
Elite (90th):
600 lbs
Difference:
-190 lbs
114 lbs
lbs
Right Grip Strength
64th Percentile
Elite (90th):
130 lbs
Difference:
-16 lbs
106 lbs
lbs
Left Grip Strength
52th Percentile
Elite (90th):
130 lbs
Difference:
-24 lbs
398 W
W
Right Rotational Power
10th Percentile
Elite (90th):
973 W
Difference:
-575 W
731 W
W
Left Rotational Power
73th Percentile
Elite (90th):
909 W
Difference:
-178 W
Balance
6 metrics measured
38
Overall
27 in
in
Right Y-Balance 1
56th Percentile
Elite (90th):
36 in
Difference:
-9 in
32 in
in
Right Y-Balance 2
37th Percentile
Elite (90th):
47 in
Difference:
-15 in
33 in
in
Right Y-Balance 3
50th Percentile
Elite (90th):
46 in
Difference:
-13 in
23 in
in
Left Y-Balance 1
25th Percentile
Elite (90th):
37 in
Difference:
-14 in
30 in
in
Left Y-Balance 2
25th Percentile
Elite (90th):
46 in
Difference:
-16 in
31 in
in
Left Y-Balance 3
31th Percentile
Elite (90th):
47 in
Difference:
-16 in
Shoulder Strength
4 metrics measured
72
Overall
210 °
°
Right Shoulder Flexion
90th Percentile
Elite (90th):
209 °
Difference:
✓ Elite
47 lbs
lbs
Right Shoulder Internal Rotation Strength
76th Percentile
Elite (90th):
55 lbs
Difference:
-8 lbs
33 lbs
lbs
Right Shoulder External Rotation Strength
43th Percentile
Elite (90th):
49 lbs
Difference:
-16 lbs
32 lbs
lbs
Scaption Right Back
78th Percentile
Elite (90th):
36 lbs
Difference:
-4 lbs
Mechanics
15 metrics measured
61
Overall
23 °
°
Hip Shoulder Separation Before Leg Drive
93th Percentile
Elite (90th):
21 °
Difference:
✓ Elite
30 °
°
Trunk Flexion Before Leg Drive
80th Percentile
Elite (90th):
32 °
Difference:
-2 °
59 °
°
Drive Knee Extension Before Leg Drive
41th Percentile
Elite (90th):
70 °
Difference:
-11 °
55 °
°
Left Knee Flexion Front Foot Strike
78th Percentile
Elite (90th):
58 °
Difference:
-3 °
78 °
°
Dominate Arm External Rotation Front Foot Strike
55th Percentile
Elite (90th):
97 °
Difference:
-19 °
40 °
°
Dominate Arm Shoulder Abduction Front Foot Strike
79th Percentile
Elite (90th):
45 °
Difference:
-5 °
417 °/s
°/s
Pelvis Rotation Speed Front Foot Strike
34th Percentile
Elite (90th):
673 °/s
Difference:
-256 °/s
497 °/s
°/s
Trunk Rotation Speed Front Foot Strike
48th Percentile
Elite (90th):
756 °/s
Difference:
-259 °/s
197 °
°
Dominate Arm External Rotation Maximum External Rotation
95th Percentile
Elite (90th):
184 °
Difference:
✓ Elite
1 °
°
Dominate Arm Shoulder Abduction Maximum External Rotation
62th Percentile
Elite (90th):
9 °
Difference:
-8 °
443 °/s
°/s
Dominate Arm External Rotation Speed Maximum External Rotation
39th Percentile
Elite (90th):
1238 °/s
Difference:
-794 °/s
39 °
°
Trunk Flexion Ball Release
82th Percentile
Elite (90th):
42 °
Difference:
-3 °
84 °
°
Dominate Arm Shoulder Abduction Ball Release
7th Percentile
Elite (90th):
105 °
Difference:
-21 °
-4 °
°
Dominate Arm Shoulder Horizontal Abduction Ball Release
85th Percentile
Elite (90th):
-2 °
Difference:
-2 °
40 °
°
Dominate Arm Extension Ball Release
36th Percentile
Elite (90th):
70 °
Difference:
-30 °
Pitch Metrics
4 metrics measured
72
Overall
22 in
in
Vertical Break
95th Percentile
Elite (90th):
20 in
Difference:
✓ Elite
2 in
in
Horizontal Break
29th Percentile
Elite (90th):
14 in
Difference:
-12 in
2122 rpm
rpm
Total Spin
83th Percentile
Elite (90th):
2178 rpm
Difference:
-56 rpm
83 mph
mph
Total Velocity
78th Percentile
Elite (90th):
86 mph
Difference:
-3 mph
🎯
Brent Pourciau's Analysis
Road to 90
Personalized roadmap for Austin Slezak
The Overview
Alright Austin, here's your Road to 90. You're currently sitting at 83 mph, which means you need about 7.0 mph to hit your target of 90. Your overall profile is solid at the 59th percentile. There are clear opportunities to improve, and targeting the right ones will get you to 90.
What The AI Analysis Tells Me
Austin, here's what jumps out at me — you're throwing 83 mph, but based on your physical profile, our AI model predicted you'd be around 79 mph. That's a +4.0 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 79th 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: 96.0" (44th %ile)
→
Target: 102.0" (74th %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: 106.0 lbs (56th %ile)
→
Target: 125.0 lbs (86th %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.
Vertical Jump
+1.8 mph
Current: 26.0" (50th %ile)
→
Target: 29.0" (80th %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 = +5.7 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 +7.0 mph to hit 90, and the improvements above give you +11.1 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 Left Grip Strength. Together, these account for about 0.9 mph of your velocity gap.
Broad Jump +0.6 mph
Current
96 in
Percentile
50th
Target
102 in
To Gain
+6 in
Left Grip Strength +0.3 mph
Current
106 lbs
Percentile
52th
Target
113.8 lbs
To Gain
+7.8 lbs
Supporting Work
After that, it's about the supporting package: Left Hip Abduction, Left Hip External Rotation (mobility). 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 Speed 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 +0.1 mph
Current Percentile
56th
Your Action Plan
Movement Cues:
"Shin down, leverage, drive — use the ground."
Training Priorities:
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