He has been a pioneer in the fields of television, sport and science for over 25 years.  As creator/executive producer and host of Sport Science, John appeared in and produced  over 1800 segments that have been featured on ESPN's entire sports platform including SportsCenter, Monday NightFootball, the NBA Finals, Sunday Night Baseball, and The Masters, to name a few.

In addition to Sport Science, Brenkus has created thousands of other award-winning films, television shows and advertising campaigns for some of the world’s largest brands, including Ford, Nike,Gillette, Toyota, Adidas and TaylorMade. John has won six Emmys and has written a New York Times / USA Today Best Seller called The Perfection Point, exploring the absolute limit of human performance.