In preparation for the May 3 Kentucky Derby, Whirlaway worked 1 1/8 miles in 1:52 at Keeneland. ~1941
With many of the country's young men joining in the war effort, women exercise riders were first employed at Pimlico Racecourse. ~1943
With the start of the racing season at Jamaica, New York became the last major racing state to adopt electronic parimutuel wagering, thus eliminating on-track bookmaking. ~1940