The girls 100m hurdles and the boys 110m hurdles have ten barriers. The girls hurdles are spaced 8.50 meters apart and boys are spaced 9.14 meters apart. Within a full flight of 10 hurdles, then, there are nine total spaces, or running zones.
When using a "3-step" hurdle method, the athlete actually contacts the ground four times between each barrier. Four contacts at 9 spaces (zones) equates to 36 ground contacts total. Most hurdlers use eight steps to the first hurdle as well. Therefore, nearly every hurdler uses the same amount of steps in a race up to the last hurdle. Yet some hurdlers gain a big lead over others.
How?
One of the most significant contributors to a better time is how well the hurdler sprints in the zones between the hurdle...