[header] How to run a 200 m dash [title] Set your blocks. [step] Find your assigned lane and use the length of your feet to gauge where to place the blocks. The tip of the unit should measure about a foot length from the starting line. 
The front pedal should be 2 to 2 1/4 foot lengths from the starting line. The back pedal should be 3 to 3 1/4 foot lengths from the line.