Security guards walk Thursday on a synthetic dirt at Gulfstream Park in Hallandale Beach, Fla. The new surface is made of wax-coated sand, fibers and recycled rubber. Dirt flying as horses race around ...

BRISTOL, Tenn. — Tyler Reddick has established a clear trend at Bristol Motor Speedway — the surface matters. Few drivers in the NASCAR Cup Series show a sharper contrast between Bristol’s former dirt ...

MIAMI (CBSMiami/AP) – Emoji Guy was the first horse across Gulfstream Park's newest finish line. Gulfstream's new racing surface made its debut Thursday, and with that, the South Florida track becomes ...