Relay race

 Relay is a track-and-field event in which athletes run a pre-set distancecarrying a baton before passing it onto the next runner.

Relay rules

-The baton can only be passed within the exchange zone,which is 20 meters long.Exchanges made outside the zone result in disqualification.                                                 -The baton must be caried by hand until the final runner finishes the race with the baton in hand(do not wear gloves).                               -During each exchange the athete receiving the baton is allowed to be in motion before receiving the baton.                                                -The person receiving the baton should     receive it with the opposite hand in which the teamate is carrying it.                                    -Do not drop the baton.

Types of relay race

-The 4x100 m and 4x400 m.