Your questions ยท answered straight

How fast should a
15-year-old throw?

The number every freshman wants, and the honest context around it: typical velocity by age, what recruiters actually look for, and why the trend beats the reading.

The short answer

Mid 60s to mid 70s. Then the part that matters.

Most 15-year-old pitchers sit somewhere between the mid 60s and the mid 70s mph. A freshman holding the mid 70s is ahead of his age group. A freshman in the high 60s is exactly where most developing arms are. Neither number decides anything, because college coaches recruit the pitcher you are at 17 and 18, and the 15-year-old who gets there is the one adding 3 to 5 mph a year with a clean delivery and a healthy arm. That is the work of a online pitching mentorship for high school pitchers, and it is the whole reason this page exists.

Velocity by age

Typical ranges, not targets.

These are the ranges coaches commonly use as reference points for fastball velocity from a mound. They are averages across thousands of different bodies and growth timelines. Use them to place yourself, not to judge yourself.

AgeTypical rangeAhead of the group
1355 to 65 mph65 and up
1460 to 70 mph70 and up
1565 to 75 mph75 and up
1670 to 80 mph80 and up
1775 to 85 mph85 and up
1878 to 88 mph88 and up
What recruiters look for

Velocity opens the door. It does not get you through it.

Division I

Right-handers typically sitting mid to upper 80s or better by junior and senior year, lefties a touch lower, with command and a second pitch that plays.

Division II, NAIA, strong Division III

Upper 70s to mid 80s arms get recruited every year at these levels. Pitchability, strike-throwing and a body that projects matter as much as the reading.

What moves you up a line

Command, a trend coaches can see on film across months, arm health, and a frame that says there is more coming. A 15-year-old is being recruited on projection, not on today.

Where you actually stand against those lines is the question the recruiting check answers in ninety seconds, and the baseball mentorship program is built to move the answer.

How velocity gets built

Four places at once.

Mechanics, strength, a structured throwing plan and recovery. Most velocity in a 15-year-old is trapped, not missing: energy leaks somewhere between the ground and the hand. Video assessment finds the leak, the plan is aimed at it, and weekly film review keeps the work honest. The full breakdown is on how do I throw harder. With consistent, correct work, 3 to 6 mph over a year is realistic for many high school pitchers; athletes in the program have added up to 6.

The honest part

Measure yourself against March, not against the chart.

A chart cannot see your body, your growth plate, your training access or your delivery. Your own number from three months ago can. If it is moving the right way and your arm feels good, you are on the track, whatever the table says. If it is stuck, that is the conversation to have with a coach who will look at the film.

More on this

Asked on almost every call.

How fast should a 15-year-old pitcher throw?

Most 15-year-old pitchers sit somewhere in the mid 60s to mid 70s mph. A freshman consistently in the mid 70s is ahead of most of his age group, and anything in the 60s is normal for a developing arm. The number matters far less than the trend: a 15-year-old who adds 3 to 5 mph a year with clean mechanics and a healthy arm is on the track that leads to college baseball.

Is 70 mph good for a 14-year-old?

Yes. Seventy mph at 14 is above the typical range for that age and usually means the delivery is already fairly efficient. The job from there is to keep building strength and mechanics without rushing, because the arms that throw 85 at 17 are the ones that stayed healthy at 14 and 15.

How fast do you need to throw to pitch in college?

It depends on the level. Division I programs typically recruit right-handed pitchers who sit in the mid to upper 80s or better, with lefties given a little more room. Division II, NAIA and strong Division III programs recruit arms in the upper 70s to mid 80s all the time, and command, pitchability and projectability move a pitcher up or down those lines. Velocity opens the door. Everything else gets you through it.

Does throwing velocity by age really matter?

Only as a reference point. Age-based charts are averages that ignore body size, growth timing and training history. A late-growing 15-year-old throwing 68 mph with an efficient delivery often ends up ahead of an early-growing 15-year-old throwing 76 mph with a flaw that caps him. Measure yourself against your own number from three months ago.

How much velocity can a high school pitcher add in a year?

With consistent, correct work on mechanics, strength, a structured throwing plan and recovery, 3 to 6 mph over a year is realistic for many high school pitchers. Athletes in The Diamond Blueprint have added up to 6 mph. Anyone promising a specific number in a fixed number of weeks is selling something.

How is velocity measured accurately?

On a calibrated radar gun or a verified device like a Pocket Radar or Rapsodo, from a full mound delivery, reported as the average of a bullpen rather than the single best pitch of the day. One hot reading on a showcase gun is not your velocity. Your sitting velocity is.

Want to know where your velocity actually is?

Apply, send your video, and the first conversation is about your number, your trend, and the one thing most in the way.

Apply for Mentorship