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2012 Youth Baseball Bat Rules and BBCOR Standards

2012 Youth Baseball Bat Rules and BBCOR Standards

Baseball leagues around the country have seen plenty of changes over the past year or so. Most have focused on BBCOR bats, but there are changes across the board.

Citing safety concerns caused by the exit speeds of some composite bats, some leagues have banned composite-barreled baseball bats. Others have not. Add in the new BBCOR performance standard, and things can quickly get confusing.

This post is a guide for parents, guardians and players looking for new bats or making sure their current bats will be legal.

Little League
Heading into the 2012 baseball season, Little League’s bat rules look like this:

  • Minor League Baseball — Composite-barreled bats will be banned; some have been re-allowed
  • 9-10 Year Old Baseball Division — Composite-barreled bats will be banned; some have been re-allowed
  • Little League Baseball (Majors) — Composite-barreled bats will be banned; some have been re-allowed
  • Junior League Baseball — Composite-barreled bats will be banned; some have been re-allowed; and all BBCOR certified bats will be allowed
  • Senior League Baseball — All bats must be BBCOR certified
  • Big League Baseball — All bats must be BBCOR certified

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Do You Want to Know the BBCOR Baseball Bat Standards, Rules and Regulations?

This will provide you with the difference between BBCOR, BESR and ABI. It also provides you with the current BBCOR standards, rules and regulations along with It will also let you know legal and what isn’t.

Below is the breakdown of the current changes in bat performance standards. First, we have some definitions of terms. Second, there is a league-by-league timeline. Third, some of the common questions about the changes are answered.

Definitions

BESR (Ball Exit Speed Ratio)
This was the longstanding test used to ensure that non-wood bats play similar to wood bats. It tests a bat’s “exit speed,” i.e. how fast the ball bounces off a composite or aluminum bat barrel. It has been phased out, because it failed to account for how bats would perform after they have been broken in (Composite bats typically improve with use).

BBCOR (Batted Ball Coefficient of Restitution)
This is the new, more-accurate test that is replacing BESR. Like BESR, it is used to ensure that aluminum and composite bats play similar to wood bats, but it also accounts for how bats perform after they’ve been broken in. That’s because it includes the ABI, described below.
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Learn What The BBCOR Baseball Bat Standard Is, and Why It’s Important.

BBCOR (Batted Ball Coefficient of Restitution), the baseball bat standard that replaced BESR (Ball Exit Speed Ratio)

Many are still confused with the BBCOR standard and exactly what it means. Here’s a very simple explanation.

Rather than measuring the ratio of the ball exit speed to pitch and bat speeds (like BESR), BBCOR measures the trampoline effect of the bat. With the BESR standard, when a pitched ball made contact with an alloy or composite bat, the barrel would flex inward somewhat and the ball would retain a portion of its energy. This resulted in hits that were longer and harder. Wood bats don’t have that give to them and the ball loses much of its energy upon impact. The BBCOR standard ensures that non-wood bats perform more comparably to wood bats in an attempt to level the playing field.

It also accounts for how bats perform after they’ve broken in. Since the dawn of composite bats, it was found that the more they were used the better they performed. This led to tampering with the bats to artificially accelerate the break-in process and improve bat performance (rolling anyone?). With BBCOR, bats are now tested after various stages of simulated use in the lab, so that a bat never performs beyond the BBCOR standard at any point during its useful life.