Ironman

Former Essex student Joe Skipper is the first British athlete to break the British Ironman Record and complete a 3.8km swim, 180km bike ride and a marathon run in under eight hours.
http://www.essex.ac.uk/news/event.aspx?e_id=10708

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Definition of iron man in English:

iron man 

Pronunciation: /ˈʌɪənman/ 

NOUN

1(Especially in sporting contexts) an exceptionally strong or robust man.

Example sentences

1.1(Ironman)[OFTEN AS MODIFIER] trademark A multi-event sporting contest demanding stamina, in particular a consecutive triathlon of swimming, cycling, and running.