The purposes of this study were (a) to provide with competition information to better adjust athlete's training schedules and physical fitness levels, (b) to offer suggestions to be considered in training by the coaches and athletes, and (c) to put together results of decathlon from different competitions. It was aimed to come out with a better understanding of the development and performance advancing status of decathlon. The study involved five outstanding athletes with two of them from Taiwan and the other three from China, Kazakhstan and Korea, respectively. Descriptive analyses were performed on these athletes' specialties and past records. Recommendations were then made concerning the future athlete training of the country.