My words literally betray me.
Also in this way mainly the winner of the last race will usually win the series, almost no matter his results in the first 2 graces.
I don't have much of an issue of a game trying to incentive getting first or not getting last, but being indifferent about middle positions.
But the comment here about the winner of the 3rd race usually winning a 3 race series is an issue.
But you also want to make it so that the winner isn't decided before the end of all the races (or at least not regularly decided.)
So I likely the structure of First, Middle, Last, but I agree that the numbers could probably be better.