John Henry and Spence Bay in the 1981 Oak Tree Invitational
http://www.youtube.com/watch?v=_6GnMbAu2lc
Victory Gallop and Behrens in the 1999 Whitney
http://www.youtube.com/watch?v=Mf7UIKALfM8
I have no video for this one, and I doubt there's one out there anywhere, because it's not a really high-profile race, but I will never forget the stretch run of the 2002 El Encino Stakes between Affluent and Royally Chosen. Not only was it a battle between the fillies, but it was a real test of will between Delahoussaye and Solis with Affluent (Eddie D) prevailing in the end by a nose.
Is there anyone out there that remembers that race besides me?