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1 = s r 1 0 2 = s r 2 0

For a regular track, the straight sections are 88 meters long, and the circular ends have a radius of 35.75 meters for the inner lane. Each lane is 1.22 meters wide. If we have a 200-meter race, there is not enough distance to have the race in a

straightaway. Each lane distance will equal 200 meters; the distance L is the 88-meter straightaway, which is the same for each lane, but the difference is the radius and angle of each lane is After one lap with a staggered start, runners can then choose any lane. Typically, this will be the inside lane as it allows for the shortest distance.

(200 m) = L + r 0 0 0 (200 m) = L + r 1 0 1 (200 m) = L + r 2 0 2

Knowing the lane width, we can find how the angular size decreases with each lane away from the center ( delta r ). (200 m) = L + r 0 0 0 (200 m) = L + ( r 0 + ∆ r) (0 0 − ∆ 0) r 0 ∆ 0 = ∆ r0 0 + ∆ r ∆ 0 ∆ 0 =

∆ r0 0 r 0

14 CONNECTING STEM AND SPORTS | TRACK & FIELD