Simple stores, optimum À fond la forme The decathlon is a combined event in athletics consisting of ten track and field events. The word ""decathlon"" was formed, in analogy to the word ""pentathlon"", from Greek δέκα (déka, meaning ""ten"") and ἄθλος (áthlos, or ἄθλον, áthlon, meaning ""contest"" or “prize”).Number of Partnerships: 10