The oldest road race in Delaware turns 49 this year and benefits the American Lung Association.  The Citizens Bank Caesar Rodney 5K and Half-Marathon will take place on Sunday, March 25.  The 5K will start at 8:30 a.m., followed by the 13.1-mile Wilmington-area classic at 9:30.  Details and registration information can be found on the Races2Run.com event page.