Energy question / application

[Jay Kassa]

Hey can someone help with what looks like a textbook example for Energy?
(If it's not Total Energy, should be clear what type of metric I am asking to learn about...) - Basically two races, same day, one goes faster earlier and slows down later.
Please show work .
Both winners went wire-to-wire.
Assuming an equal track, Did the claimer actually use more energy? How close was it?

thanks,
Jay

Originally Posted by January 16th 2010

2nd race at Laurel... Claiming ($25,000 - $20,000) | Purse: $18,000
3 Citigambler
Times in 100ths: :21.94 :45.02 :57.23 1:10.31
..........................................................................

7th race at Laurel
ungraded Stakes | Purse: $68,200
1 Digger
Times in 100ths: :23.06 :46.00 :57.41 1:09.13