How far apart are the hurdles in the 300 meter hurdle race?

The distance between 300 Hurdles (or 400 Hurdles) is 35 meters. The distance to the first hurdle (in high school races) is 45 meters and 10 meters from the last (8th) hurdle to the finish line. This is exactly the same as the first 300 meters of a 400 Hurdle race, though the relative position on the track is moved to finish at the common finish line. All the distances on hurdle spacing are available at: http://www.trackinfo.org/hurdles101.html