In a relay race, how wide is the designated take-over zone?

In a relay race, the designated take-over zone is the specific area where the baton is passed from one runner to the next. This zone is crucial as it allows teams to exchange the baton efficiently while maintaining speed. The standard width of the take-over zone is 20 meters.

This zone ensures that there is enough space for the outgoing runner to accelerate and for the incoming runner to decelerate after passing the baton. The take-over zone starts 10 meters before the finish of the prior leg and ends 10 meters into the next leg, making a total of 20 meters.

Runners must exchange the baton within this area. Failing to do so often results in disqualification. Understanding and strategizing around the take-over zone is critical for relay race success. Hence, the correct answer is 20 m.