In August, 2013, Brian Donnelly and Yassine Diboun set out to specifically capture the speed record for 456-mile Oregon section of the PCT. The pair were self-supported, with resupply every 1-2 days at locations that are typically used for this purpose by thru-hikers. Diboun stopped after a couple of days, but Donnelly soldiered on to complete the traverse in 7d22h37m (August 9-17, 2013), well under previous times that were set by PCT thru-hikers, and faster than subsequent supported times. Donnelly posted a detailed report of the run on irunfar.com, and a breakdown of his gear for the trip on his blog.
7d 22h 37m 0s