April 18 (UPI) -- After months of planning and racing in pursuit of spots in the 151st Kentucky Derby , it's starting to look possible the race may go to the post May 3 with fewer than the maximum 20 runners. Meanwhile, owners of other 3-year-olds lookiforward to the second jewel of the U.S. Triple Crown, with two weekend races providing "Win and You're In" credentials for the Preakness Stakes at Pimlico in Baltimore. Three-year-olds also have the spotlight elsewhere in the racing world during