One hour decathlon is a special type of decathlon, in which the athletes have to start the last of ten events (1500m) within sixty minutes after the start of the first event.
Decathlon 2000 has pretty much everything you could want to know about decathlon. Whenever I go to a decathlon, you can be sure that I’ve got a sheaf of Decathlon 2000 athlete profiles printed, tabbed, and highlighted in my notebook - Gabby Pieraccini