I was there for this race. He stumbled out of the gate. The bridgejumper that made this bet kept going for a few months and lost it all in a race at Golden Gate, I think, when a horse broke down.
Apparently this guy would go from track to track with his briefcase full of money. I noticed the big show bet on the Doctor and bet show on someone else just in case. I think I actually bet it on the winner. Last time he ever ran at Canterbury.