Age-Appropriate Velocity Expectations for Youth Baseball Players

Parents and young players love asking "how fast should I be throwing?" It's a fair question, but the honest answer is that there's no official velocity standard by age, and kids the same age can throw very differently. Here's what matters more.

(The original version of this article gave example speeds for 9- and 14-year-olds. We couldn't verify them against a reliable source, so we've removed them rather than present guesses as benchmarks.)

Why age-based charts mislead

You'll find velocity-by-age charts online. They vary from site to site and rarely say where their numbers came from. Even a good average hides huge differences:

• Growth: two 13-year-olds can be years apart in physical development.
• Size and strength: taller, stronger kids usually throw harder, for now.
• Experience: a player who started pitching recently isn't behind; they're just early.

Pushing kids toward an adult-style number can lead to burnout or injury.

What actually affects velocity

• Physical growth. Strength and coordination rise with age. Growth spurts can temporarily make a player less coordinated, and that's normal.
• Mechanics. Using the legs, hips and trunk efficiently adds speed with less stress on the arm. See the mechanics of pitching.
• Strength and conditioning, appropriate for the player's age.
• Recovery. Rest, sleep and nutrition support growth and performance. Overtraining hurts both.
• Mindset. Pressure can make players tense, which rarely helps.

Setting healthy goals

• Compare a player to themselves. Track readings over months and seasons, under similar conditions.
• Value more than speed. Command, a good changeup and fielding the position all matter.
• Follow pitch limits. Use MLB and USA Baseball's Pitch Smart guidelines, and take time off every year.
• Don't chase the number every day. Measure occasionally, during normal throwing, not in max-effort contests.
• Keep it fun. Kids who enjoy the game keep playing and keep improving.

Using a radar gun the right way

A radar gun makes progress visible and gives honest feedback on changes. Used gently, it's motivating. Our youth training guide covers when and how to introduce one, and how to increase the speed of your fastball covers safe ways to build velocity.

See our guide to the best baseball radar guns for youth players →