Early Thursday morning, six to eight horses worked over the new dirt surface. Conversion of the main track from a synthetic polytrack surface to dirt began May 19th. At first glance, Keeneland's new track looks very much like the old one. Spokeswoman Amy Gregory says the new track features a unique draining system. "We feel that, when there's rain water, it will flow very quickly off the track toward the inside and outside rails and that will carry it away from the track and eliminate a lot of ponding," said Gregory.