Here's a comparison of some charts from the '41 Kentucky Derby (Whirlaway) card and the '43 Kentucky Derby (Count Fleet) card.
'41: Brown Hotel:
'43: Brown Hotel:
'41: French Lick:
'43: French Lick:
As you can see ... the sprints were pretty close this year. Both editions of the Brown Hotel went in 1:11 2/5ths. Both editions of the French Lick featured 4 length winners ... but the '43 edition went 4/5ths slower... although it was won by a 26/1 shot where the favorites dominated in the faster edition.