Would be neat to see this technology applied to racing

[Bigsmc]

I saw that a while back while flipping channels and stopping at airplane racing of all things. They were flying a course through pylons and such against the clock. After a run they would superimpose a previous run on the replay and you could see where each plane was the quickest and where they lost/gained time.

Not sure of the usefulness when applied to horse racing, but it would be fun to watch.