Reinhold Metzger claimed the record for a long time, beating his own records from time to time, with a best time of 5d7h45m (Mt. Whitney to Happy Isles, 2004). However, it turns out that John Rosendahl did a faster trip way back in 1988 (Aug. 25-30), hiking solo, unsupported and uncached from Whitney Portal to Happy Isles in 5d7h50m. Rosendahl's trip was reported in the Los Angeles Times (10/3/1988), the Irvine World News (9/29/1988), and the Sierra Club Newsletter (Dec. 1988).
south to north
5d 7h 50m