Liam Mucklow is the founder of the Baseball Performance Lab and one of the sport’s foremost innovators in bat fitting and player performance science. A pioneer in applying data-driven equipment methodology to baseball, Liam has transformed how professional hitters approach their craft — bringing the same rigorous fitting process long established in golf directly to the diamond.

Liam’s background is rooted in elite performance science. After competing as one of the top Long Drivers on the World Long Drive Tour and on professional circuits across Asia, he channeled that experience into founding The Golf Lab in Toronto in 2009. The Golf Lab became a global leader in club fitting, working with major champions including Padraig Harrington and Webb Simpson, and growing to over 1,000 certified golf professionals worldwide.

In 2019, Liam was approached at the PGA Show by a CAA baseball agent with a simple challenge: apply his equipment expertise to baseball bats. What followed was a series of experiments — including a landmark spring training study showing that players consistently performed best with bats different from the ones they preferred by feel — that validated what golf had long understood: the relationship between athlete and equipment is measurable, and it matters enormously.

That insight became the foundation of the Baseball Performance Lab, founded in partnership with Marucci Sports in Baton Rouge, Louisiana. Liam developed BPI (Balance Point Index™), a proprietary metric that quantifies how a bat actually swings relative to an individual athlete’s biomechanics. Together with Director of Player Development Micah Gibbs, he built a state-of-the-art facility equipped with dual force plates, six high-speed cameras, 3D motion capture, and launch monitoring technology — generating up to 30,000 data points per swing.