Originally Posted by Bacciagalupe

It's still a competitive event. David Anthony apparently won his age group (45-49), not sure about the other guy.

Anthony obviously wasn't doping for financial gain or to advance a racing career; he almost certainly spent more obtaining the EPO than he won in prizes, and is not about to join a pro team.

If it was a non-competitive ride, and he was under medical supervision, he could take whatever he likes. Since it's a competition, PED's are out.