Fastest marathon carrying 20 lb pack

The fastest marathon carrying a 20-lb pack is 3 hr 16 min 08 sec and was achieved by Gearóid Ó Briain (Ireland) at the 2013 Great Limerick Run Marathon in Limerick, Ireland, on 5 May 2013.

Gearóid, a pilot in the Irish Air Corps, ran the race in memory of colleagues, Cadet David Jevens and Chief Flying Captain Derek Furniss, who tragically lost their lives during a training flight in Connemara in October 2009.