Anyone who has been in this sport for more than a few years understands that there is really no difference between 3rd and 2nd. It just meant that you were beaten earlier. In fact, I always appreciate the 3rd place finishers more than the 2nd because they were able to come back. If you start to challenge for one spot, then there will be those who will want to challenge for another. You have to either allow challenges for all places or not allow for all places.