The concept of Olsen's world run originated as a suggestion made in 2001 by Olsen to David Blaikie, who published it with an invitation for comments on his website ultramarathonworld.com. Olsen suggested that, without taking sides in then-current controversies in the ultra-running world, a professionally organized world run would be a "constructive" and "truly sportsman[like]" response to widespread ultrarunner community skepticism and discussion concerning Robert Garside's world run, which had been in progress since 1997 but was viewed with great skepticism by Blaikie and many ultra-runners and had not yet been authenticated by Guinness at the time.

In 1954, marathon cyclist Ernie Old completed an 80-day bicycle ride, averaging 80 miles per day and finishing on his 80th birthday in Albert Park in Melbourne. This was just one of his remarkable feats – he also served in two wars, patented several inventions and made Prime Minister Robert Menzies an offer he almost couldn't refuse.

The Long Walk for Leukodystrophy. On Thursday 31st March 2016, John began his walk from the very tip of Cape York. He initially walked to his base camp where he completed his preparation and setup before commencing the bulk of his walk on Sunday 3rd April.  

Orville Ewing billed himself as an "artist from the Old West". He traveled the United States with his covered wagon/trailer and menagerie for about 30 years starting in 1938.

Retired funeral director Jim Ogland pedaled through Salt Lake City this week during his revival of the first cross-continent bicycle ride, undertaken by outdoor magazine writer Thomas Stevens in 1884.