These ASTM F2219 measuring methods of high speed bat performance provide specifications for determining bat performance by measuring the bat-ball coefficient of restitution (BBCOR), deriving the ball exit speed ratio (BESR), and calculating a batted-ball speed (BBS). Use of these ASTM F2219 test methods can provide quantitative metrics of bat performance. The ASTM F2219 test methods provide quantitative measures of bat dynamic performance that may be used for comparison purposes. These ASTM F2219 measuring methods are applicable to baseball and softball bats of any construction or material.

These ASTM F2219 test methods offer a laboratory measure of the performance of baseball and softball bats. The BBCOR, BESR, and BBS are each calculated from measurements taken in the laboratory on test equipment meeting the requirements defined in this ASTM F2219 standard. The values stated in inch-pound units within this ASTM F2219 specification are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information purposes.

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