- Collin Harrison
- 5:03:51 hour(s):minute(s):second(s)
- United Kingdom (Edinburgh)
The fastest marathon carrying an 80 lb pack is 5 hr 3 min 51 sec and was achieved by Collin Harrison (UK) in Edinburgh, UK, on 29 May 2022.
Collin made this Guinness World Records attempt to prove that age is just a number.