How Fast Should a Pitcher Throw at Age 10, 12, 14, or 16?

Roughly 40 to 50 mph. Competitive 10U pitchers typically throw 50 to 55 mph. Elite 10U pitchers may touch 60 mph, but these are outliers and usually early developers physically.

Roughly 50 to 60 mph. Competitive 12U pitchers throw 60 to 65 mph. Advanced 12U pitchers can reach 65 to 70 mph. Little League World Series pitchers often sit in the 65 to 72 mph range.

Roughly 60 to 70 mph. Competitive 14U pitchers throw 68 to 75 mph. Advanced 14U pitchers reach 75 to 80 mph. This is typically the age where velocity gaps widen rapidly.

Roughly 70 to 80 mph. Competitive 16U pitchers throw 78 to 85 mph. Advanced 16U pitchers reach 85 to 88 mph. Top showcase pitchers may touch 90+ mph.

There is no standard rate. Most pitchers gain 3 to 5 mph per year through ages 12 to 16, but gains happen in bursts tied to growth spurts and training. A flat year is normal and does not signal a problem.

Yes. 70 mph at 12 is in the top few percent of pitchers nationally. But "good" is relative. A 50 mph pitcher with excellent command often beats a 70 mph pitcher with poor control. Velocity is one input, not the whole picture.

Possible causes include growth spurts (temporarily), mechanical changes, fatigue, overuse, or insufficient recovery. Consult a qualified pitching coach before changing training load. Sometimes less throwing produces more velocity.

No. Pressure to increase velocity leads to overthrowing, mechanical breakdown, and injury. Focus on mechanics, arm care, and enjoyment of the game. Velocity comes from development, not from effort. Pushing too hard is how kids end up with Tommy John surgery at 15.