I like that the Sportscaster set has lots of track and field cards. More than 300 cards exist for track and field athletes. That is more than 10% of the set.
Lots of track stars and olympic medalists can be had for under a quarter since most people are interested in the four main sports (FB, BB, BSK, Hockey) and boxing. When I buy cheap lots they don't have the big stars, but the track cards are rarely picked through other than Prefontaine cards and high numbers.
I plan to post specific cards using the biographies listed on the back. I will try to include a few things more recent for each athlete if there is anything worth noting.
I've found cards of people I've met, ran against, coached against and even one of a guy who was my coach. I'm going to keep checking out the pictures to figure out who else is in some of them. Stay tuned.