How to Throw Harder: Pitching Velocity Training Like Jacob deGrom
If you want to throw harder, stop trying to muscle the ball and start building velocity from the ground up. Jacob deGrom sits in the upper 90s and touches triple digits because his lower half and core fire in sequence, then deliver that energy to a loose, fast arm. Velocity is a trainable skill. Watch the drills below, then use the mechanics and the simple home tool in this guide to add real miles per hour to your fastball.
What actually makes a pitcher throw harder?
Velocity is not an arm trait, it is a whole-body trait. The hardest throwers create force with their legs, store it as they stride toward the plate, and then release it in a fast rotation of the hips and trunk. The arm is the last link in that chain, not the engine. When young pitchers try to throw harder by yanking with the shoulder, they slow the arm down and put it at risk, because the big muscles that should be doing the work are left out of the delivery.
Jacob deGrom is a perfect model. He is not the biggest pitcher in the game, but he gets into a strong, athletic stride, drives hard off the rubber, and lets his hips clear so the ball comes out of a relaxed, whip-fast arm. That is why the ball jumps. Train the sequence and the strength behind it and your velocity climbs, even if your size stays the same. The pitchers who add the most miles per hour are rarely the ones who simply get bigger. They are the ones who get more explosive and more efficient, so more of the force they produce ends up in the baseball.
Which parts of the delivery add the most velocity?
Most pitchers are capable of more velocity than their mechanics show, because energy is leaking out before the ball is released. Use the table below to see where speed comes from, what each phase adds, and the common mistake that quietly costs you miles per hour.
| Phase | What It Adds | Common Mistake |
|---|---|---|
| Leg drive off the rubber | Raw force into the stride | Standing tall instead of pushing down and out |
| Stride and hip load | Stored energy to release at front foot | Short stride that leaves power behind |
| Hip and trunk rotation | The speed that whips the arm through | Flying open early and losing the core |
| Loose, fast arm | Clean delivery of all that energy | Gripping tight and muscling the shoulder |
Notice that three of the four phases happen below the shoulder. That is the shift most pitchers need. Build a strong, explosive lower half and keep the arm loose, and the velocity takes care of itself.
What training builds a stronger, faster delivery at home?
You do not need a full weight room to add velocity. Resistance bands let you train the exact qualities a power delivery needs: lower-half strength, hip drive, and the arm-care work that keeps a hard thrower healthy. Banded lateral walks and hip drives build the push off the rubber, band pull-aparts and external rotations strengthen the back of the shoulder, and resisted stride drills teach your legs to fire harder toward the plate. That is force work you can do in a garage or a bullpen, year round.
P.R.O. Resistance Bands
Loop bands for hip drives, lateral strength, and shoulder care, the force and arm-health work that turns a good delivery into a harder fastball.
Because the bands come in multiple resistance levels, a 12 year old and a varsity starter can use the same system and simply pick the band that challenges them. That makes it a tool you grow into, not out of, and a safe way for young arms to build strength without heavy weights.
What drills help you throw harder?
Run these two or three times a week, on top of your normal throwing program. Keep every rep crisp and stop before your mechanics get sloppy, because tired reps groove slow habits.
Velocity questions coaches ask
How long does it take to add velocity?
Most pitchers feel a stronger lower half and cleaner delivery in 4 to 6 weeks of consistent work, with measurable gains over a full off-season of strength and throwing.
Do resistance bands really help you throw harder?
Yes, when used for lower-half power and shoulder care. The strength and stability they build shows up as more force in the delivery and a healthier arm that can train harder.
Is long toss good or bad for velocity?
Done with a plan, long toss builds arm strength and velocity. The key is intent and good mechanics, not just chucking the ball as far as possible every day.
Should young pitchers train for velocity?
Yes, with bodyweight work, bands, and clean mechanics rather than heavy lifting. Young arms gain the most from good sequencing, mobility, and short, quality throwing sessions.
Why do I lose velocity late in games?
Usually it is lower-body fatigue and loss of mechanics, not a tired arm. A stronger lower half and better conditioning let you hold your delivery and your speed deeper into outings.
Build the engine behind a harder fastball
Train the lower half, protect the arm, and watch the radar gun climb.
Tags: how to throw harder, pitching velocity, Jacob deGrom, baseball, resistance bands, arm strength
