Andrew Murray, 2012 (Scotland) (video)
Andrew has run 7 ultra marathons in 7 contients in 7 days - all 50k distances.
Joel Runyon, 2017 (USA) (Runner's World)
The youngest person on record to have completed this challenge at 29 years old, 9 months and 24 days.
Fernando Gonzalez, 2017 (Spain)
The first recorded person to have run 100k on every continent.
Nahila Hernandez, 2017 (Cuba/Mexico) [source]
The first woman to have run an ultra marathn on every continent.
Richard Donovan (Ireland) (wikipedia)
Richard has several accolates including running the fastest time of 7 marathsons on 7 continents in 7 days. He organizes the World Marathon Challenge.
Brent Weigner, 1999 (USA)
Brent has run several unique ultra marathons including the only ultra marathon on the South Pole and was the first ultra marathoner to run an ultra marathon on each continent - July 27, 1999