What's the psychology behind guys who know they aren't going to win the race putting up with this sort of pace? They're going to get dusted in the placing, and this opening pace ensures they're going to run a time even slower than planned under adverse conditions. What's the point? Why not jump to the front and run a few 70s just to keep the pace honest? Sure, you're going to get passed by most of the pack, but that was going to happen anyway and at least you've set yourself up for a decent time. Does every coach instruct his runners never to take the lead under any circumstance until the last mile?