Solution: If the radius of the inner circle is R and the width of the runway is D, the radius of the outer circle is (R+d).

According to the circumference formula: the circumference of the outer circle is greater than that of the inner circle: 2π (r+d)-2π r = 2π d.

As shown in the above example, the width of the runway is 2m, so the circumference of the outer circle is greater than that of the inner circle:

2πd =4π (m) ≈ 12.56 m

Therefore, in the 200-meter race, the starting line of the outer track is 6.28 meters ahead of the starting line of the inner track. 400 meters, the starting line of the outer runway is ahead of the starting line of the inner runway 12.56 meters.