At the end of the Sierre-Zinal race this weekend Kilian Jornet was busy giving spectators high 5's, and another runner, Mamu, sprinted past him to take 4th place. Kilian lost both prize money and points in the Golden Trail series because of it. Was pretty funny to watch. When he realized he was being passed he tried to sprint across, but he was too late.
I think he is so used to finishing with huge leads that he can ham it up at the end, but he'll probably save that now for longer races, rather than these shorter, faster more competitive ones.