isn't that, effectively, what hapens? But the seperate races are run concurrently......Alternatively you could have a male only race and a female only race and give prizes to the 1st, 2nd, 3rd etc for each race.
The only time I've ever won anything in a race was for that very reason (not the V70, though). Well, I say won anything, I actually went home before the prize giving as I've never won anything......You could take the argument one stage further and also apply this logic to age categories. In many local races, there is only one V70, yet they get a prize for winning that category.