Before Dubberly, Andy Anderson set the overall fastest ascent (1h49m10s) and car-to-car (3h03m05s) times on Aug. 28, 2014, also via the Mountaineer's Route. Anderson's splits are below, along with a link to his full trip report. His gps track for the run is here. On August 6 he had run the ascent in 1h50m (then FKT) and the round-trip in 3h13m (not FKT).
Mountaineer's Route car-to-car
3h 3m 5s