Opinions expressed by Forbes Contributors are their own. Tim Newcomb covers tennis gear/business, stadiums and sneaker tech. When American 200-meter Olympian Kenny Bednarek powers around the curve ...

Our original hypothesis… going back to 2016... was each individual is so different that we need individually customised track ...

Click here to subscribe. Whether you’re looking to set a raft of new PBs on the track or are preparing for the cross-country ...