Decathlon is a combination of events consisting of ten track and field athletic events. It takes place over two days and the winner is determined by combining performances in all the events. It is contested by male athletes mainly while female athletes usually compete in the heptathlon. However in 2001, IAAF approved the women’s decathlon also and is contested in some competitions. Decathlon was originated from the pentathlon which is a part of Ancient Olympics consisting of long jump, discus throw, javelin, sprint and wrestling. An all-round championship, similar with modern decathlon was held at the 1904 Summer Olympics while the modern decathlon was first contested at the 1912 Games held in Stockholm.