Belgian dentist Karel Sabbe lowered the mark by about 22 hours, completing the route in 52d8h25m supported, northbound, completed on August 13, 2016.
Sabbe's trip has generated some controversy since he took several alternate routes due to fire, as discussed in Did a Belgian Dentist Just Break the PCT Speed Record? on Trail Runner Mag.
However, Joe McConaughy (previous FKT holder) also took official detours. He said: "I did take the official PCT reroutes of all sections that were closed. I ran all these sections (meaning if it was a road reroute, I would run all of it). ... I believe I ended up running a few extra miles for the reroutes!"