List of successful summits of Mt. Everest compiled by the Nepal Ministry of Tourism from May 29, 1953 (date of first summits by Tenzing Norgay and Edmund Hillary) through Dec. 31, 2012, can be found here:
http://www.tourism.gov.np/uploaded/MountaineeringInNepalFactNFigure_June2012.pdf And additional data can be found in the Himalayan Database including the Season Lists.
Race results for all Ironman Triathlon World Championship participants from 1978 (date of first race) through 2013 race, can be found here:
If you believe your name has been inadvertently overlooked in our database analysis, or have recently completed the Peak to Heat Double and would like to be added to the list, please email your full name and dates for Everest summit and Hawaii Ironman finish to: firstname.lastname@example.org