Whitham Thoroughbred's homebred Burnham Square (g, 3, Liam's Map--Linda, by Scat Daddy), a disappointing fourth as the 9-5 favorite in the GII Coolmore Fountain of Youth S. at Gulfstream Park last out Mar. 1, bounced back in a big way with a well-timed, last-to-first, nose victory over 'TDN Rising Star' East Avenue (Medaglia d'Oro) in Tuesday's postponed GI Toyota Blue Grass S. at Keeneland. It was another 3/4 of a length back to 'TDN Rising Star' River Thames (Maclean's Music) in third. Favored MGISW and 'TDN Rising Star' Chancer McPatrick...