Chris Wilder came close, with a time of 2d3h29m (supported), 28-30 April 2018.
Trip report: https://runfatdoc.wordpress.com/2018/06/01/gnw250/
An epic adventure. Had a goal time of 60 hours and no thoughts of the FKT so to go within a few hours of that time was incredible for me. Joe Ward (current FKT holder) and many others as pacers and support crew. Looking forward to going back for another shot in the coming years.