Anchor noun, the athlete who runs the last leg of a relay
Baton noun, the hollow tube that is passed between relay runners
Exchange zone noun, the 20m section of a track inside which the baton must be passed from one runner to another
Leg noun, a designated segment of a relay race completed by one runner. Generally, the second fastest of the four runners will run the first leg, then the third fastest, then the slowest, leaving the fastest runner for the final leg
'Stick, stick, stick ... '
the instruction shouted from a baton-holder to the next leg runner, as an order to stick out his/her hand to receive the baton