a protocol that assists in traversal of network address translators or firewalls for multimedia applications.

The World Athletics Relays, known as the IAAF World Relays until 2019, is an international biennial track and field sporting event held by World Athletics where teams from around the world compete in relay races, some of which are not part of the standard Olympic programme.

Started April 30, 1927, the West Coast Relays grew to one of the premier track and field events in the United States.

The (officially The Penn Relay Carnival) the oldest and largest track and field competition in the United States, hosted annually since April 21, 1895 by the University of Pennsylvania at Franklin Field in Philadelphia.