article 2011 9 pages Personal best times in an Olympic distance triathlon and in a marathon predict Ironman race time in recreational male triathletes Christoph Alexander Rüst, Beat Knechtle, Patrizia Knechtle, Thomas Rosemann, Romuald Lepers JournalOpen Access Journal of Sports MedicineDOI10.2147/OAJSM.S23229Publication typeOriginal ResearchStudy typeobservational studyPopulationrecreational male triathletes View on DOI ↗