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A little wonder, every day

Tony Mangan covered more than 405 km on a treadmill in 48 hours

AI-generated cover of a fictional adult male runner on a treadmill; not Tony Mangan or his 2008 attempt and no 48-hour duration implied. Prompt: “Photorealistic vertical 4:5 editorial cover of a fictional adult male ultrarunner jogging steadily on a treadmill in a modest sports hall, full body in side view, focused but relaxed, soft indoor lighting and realistic equipment. Not Tony Mangan or his 2008 record attempt; no 48-hour duration or exact distance implied. No readable displays, text, logos or numbers.” Generated 20 October 2026.
U.S. Marines running on treadmills for a marathon, U.S. Fifth Fleet area, 27 October 2012; photographer Mass Communication Specialist 3rd Class Jonathan Sunderman, U.S. Navy; U.S. federal government public domain. Original page: https://commons.wikimedia.org/wiki/File:Flickr_-_Official_U.S._Navy_Imagery_-_Marines_run_on_treadmills_for_a_marathon..jpg. Credit: U.S. Navy photo by MC3 Jonathan Sunderman.
U.S. Navy sailors running on newly installed treadmills aboard USS Ronald Reagan, 5 February 2007; photographer Mass Communication Specialist 2nd Class Joseph M. Buliavac, U.S. Navy; U.S. federal government public domain. Original page: https://commons.wikimedia.org/wiki/File:US_Navy_070205-N-3659B-036_Sailors_on_board_USS_Ronald_Reagan_(CVN_76)_run_on_newly_installed_treadmills_in_the_mezzanine_gym.jpg. Credit: U.S. Navy photo by MC2 Joseph M. Buliavac.
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AI-generated cover of a fictional adult male runner on a treadmill; not Tony Mangan or his 2008 attempt and no 48-hour duration implied. Prompt: “Photorealistic vertical 4:5 editorial cover of a fictional adult male ultrarunner jogging steadily on a treadmill in a modest sports hall, full body in side view, focused but relaxed, soft indoor lighting and realistic equipment. Not Tony Mangan or his 2008 record attempt; no 48-hour duration or exact distance implied. No readable displays, text, logos or numbers.” Generated 20 October 2026.

Listen to fact0:00 / —

From 22 to 24 August 2008, Irish ultrarunner Tony Mangan covered 405.22 km on a treadmill in 48 hours. Guinness World Records says the attempt took place at St. Mel’s College in Longford, Ireland, and still lists this result in its category for the greatest distance on a treadmill in 48 hours. The source list rounds the figure incorrectly: the verified result is 405.22 km, not 405.5 km.