Here's two interesting videos from 1981. The first is the 1981 Jockey Club Gold Cup won by John Henry; at the very beginning, listen to Jimmy "The Greek" analysis of the runners in the field and thier chances before the race. The second video is the 1981 Champagne Stakes won by Timely Writer, the CBS commentators take turn in the race call. Jack Whittker, Frank Wright, Charslee Chantey and Jimmy "the Greek" do a quarter of each call. Also, Before Dawn was a two year old filly racing versus the boys.
http://youtube.com/watch?v=DHexkk8Xhl0
http://youtube.com/watch?v=dIYrFiEgmEw