pentathlon(n = noun.event) - an athletic contest consisting of five different events;
is a kind of athletic competition, athletic contest, athletics

1.  A fivefold athletic performance peculiar to the great national games of the Greeks, including leaping, foot racing, wrestling, throwing the discus, and throwing the spear. [1913 Webster]

2.  In the modern Olympic Games, a composite contest made up of a running broad jump, throwing the javelin, a 200-meter run, throwing the discus, and a 1500-meter run. [Webster 1913 Suppl.]

pentathlon, n. an athletic event comprising five different events for each competitor.

Derivative:
pentathlete n.

Etymology:
Gk f. pente five + athlon contest