A few things ...
-- The IAAF has profiled former University of Oregon star Devon Allen, who says he loves hurdling because of the technical challenges and athleticism involved.
Allen says: ""The best part of hurdling is it can look such a chaotic event but the elite athletes make it look so graceful. There are so many variations of how the race can unfold in the hurdles, but you never can predict what will happen. You practice every single outcome and the hope is that in the race, you deliver a performance which can best be described as controlled chaos.