Ask a scout what they look for in a pitcher’s workout, and the radar-gun answer is obvious. Ask what they look for before the radar gun, and the honest ones will tell you: the jumps. The vertical jump has quietly become one of the best predictors of pitching velocity in the published research — better than almost anything you can measure in the throwing arm itself. Below: the evidence, the benchmark numbers, and what to do if your jump says you’re leaving velocity on the table. Understanding the vertical jump pitching velocity relationship can give you a measurable edge.
Vertical Jump Pitching Velocity: What the Research Says
The correlation between lower-body power and fastball velocity keeps showing up everywhere researchers look for it:
- Sakurai et al. 2024 (Journal of Strength and Conditioning Research) tested 19 Division 1 pitchers on force plates. Countermovement-jump concentric impulse correlated with fastball velocity at r = 0.71, and peak jump power at r = 0.68. Strikingly, pelvis and trunk mechanics measures in the same study did not correlate. At that level, the power separator was bigger than the mechanics separator.
- Hoffman et al. 2009 (JSCR) measured 343 professional pitchers. The MLB players averaged a 28.3-inch vertical jump at 223 pounds, with a 10-yard sprint of 1.52 seconds.
- King 2025 (JSCR) found that absolute peak power correlated with velocity in D1 pitchers (r = 0.43), along with body mass (r = 0.58) — while mass-normalized power didn’t. Translation: total force output drives the baseball. That’s why “athletic but small” doesn’t throw 95.
- Lehman et al. 2013 (JSCR) showed lateral-to-medial jumps — power produced in the same frontal plane as the pitching drive — correlate strongly with throwing velocity in college players.
Our own data agrees. TopVelocity’s velocity-prediction model, trained on 1,500+ evaluated athletes, ranks the broad jump as its #1 single predictor of pitching velocity. Lateral jumps, vertical jump, and loaded vertical jump all rank in the top tier — ahead of most arm measurements entirely.
Why the Vertical Jump Predicts the Fastball
Conventional wisdom says velocity is arm talent. Science says the vertical jump and the fastball are the same physical event pointed in different directions: explosive triple extension — ankle, knee, and hip extending together at maximum rate of force development. In the jump, that force moves you up. On the mound, drive-leg triple extension timed just before front-foot strike launches the pelvis down the slope. Then the front leg brakes, absorbing roughly 175% of body weight, and that ground force converts to the hip-to-shoulder separation torque that produces most of a pitcher’s velocity. The arm delivers force. The legs and trunk produce it.
That’s why a pitcher’s jump numbers set a ceiling on his radar-gun numbers. You cannot deliver force you never produced.
Benchmark Yourself: D1 vs MLB Standards
| Metric | NCAA D1 pitchers | MLB pitchers |
|---|---|---|
| Vertical jump | ~25.3 in (force-plate CMJ) | 28.3 in |
| Body mass | ~200 lb | 223 lb |
| 10-yard sprint | ~1.60 s | 1.52 s |
| Broad jump | 96.3 in | — |
Test yourself honestly: vertical jump, broad jump, lateral jumps each direction, 10-yard sprint, and body weight. Then put your numbers — plus your current velocity — into the free TopVelocity Velocity Calculator. It scores you against our national athlete database and projects what your power profile says your fastball should be. Many pitchers discover their body is already capable of 5+ mph more than they’re throwing — the leak is mechanical, not physical. One free MechanicsDNA Mini scan will tell you which one you are. For where you should stand against recruiting standards by age, see our velocity benchmarks guide.
How to Train It (and How Not To)
If your jump is below benchmark, the fix is rate of force development — not bodybuilding, and not throwing harder:
- Olympic lifts first. The hang clean’s second pull produces ~52.6 W/kg — over four times the power output of the squat — and it trains explosive triple extension as one timed pattern, exactly the way the mound demands it (Garhammer). This is the core of TopVelocity strength programming. Our pro standard is a 1.5x bodyweight power clean.
- Jump and med-ball work in all planes. Vertical, broad, and lateral jumps, plus rotational med-ball throws. Remember Lehman 2013: lateral power is pitching-specific power.
- Keep lifting in-season. D1 pitchers who removed resistance training for eight weeks lost velocity (Gdovin et al. 2024, JSCR).
- Measure force, not just inches. A jump number tells you output. It doesn’t tell you whether your right side produces 20% less force than your left, or whether rate of force development is your bottleneck. That’s what ForceIQ measures: a $297 at-home Bluetooth force-sensor kit with a 16-test hip and arm protocol that scores asymmetries, RFD, and injury-risk markers, with corrective programming built from your results. Asymmetry isn’t academic — in 188 professional pitchers, every 5% of hip-abduction asymmetry raised throwing-arm injury risk 1.24x (Plummer et al.).
The complete system — jump and force testing, Olympic-lift programming by level, 3X mechanics work, and AI-tracked evaluations — runs inside the TopVelocity Player Portal ($99/month, 7-day free trial). Test your jump today. It knows something about your fastball that the radar gun hasn’t told you yet.
Frequently Asked Questions
In a 343-player professional study (Hoffman et al. 2009, JSCR), MLB pitchers averaged a 28.3-inch vertical jump at 223 pounds of body weight. NCAA Division 1 pitchers measure around 25.3 inches on force-plate countermovement jumps.
Strongly. Sakurai et al. (2024, JSCR) found countermovement-jump concentric impulse correlated with fastball velocity at r=0.71 and peak jump power at r=0.68 in D1 pitchers – higher than most mechanical variables measured in the same athletes.
Both are explosive triple extension – ankle, knee, and hip extending at maximum rate of force development. On the mound, that drive-leg force converts to hip-to-shoulder separation torque, which produces most of a pitcher’s velocity. The arm only delivers it.
Olympic lifts (the hang clean produces 4x the power output of a squat), multi-plane jump training, and med-ball work – while keeping resistance training in-season, since D1 pitchers lost velocity after just 8 weeks without it (Gdovin 2024). Force testing finds individual leaks.
About the Author
Brent Pourciau, M.S., is the founder of TopVelocity. After tearing his rotator cuff at 18 and being told he would never pitch again, he rebuilt his delivery through peer-reviewed biomechanics research and returned to throw 94 mph in professional baseball. He holds a master’s degree in kinesiology with doctoral work in health sciences, and has trained 10,000+ athletes including 100+ MLB draft picks through the TopVelocity Player Portal and Performance Center licensing program.
