video is here on the 6th page near the bottom
http://isverygood.info/
looked like he went through 300m mark at 32.7 run final 100m in 12s.
observed 133 knee raises(within the sprint) from the blocks to 300m and 179 total knee raises over the whole 400m. One of the few 400m videos out there where their is a camera on the top runners at all times.