Team ultrarunners Hal Koerner and Mike Wolfe set a new supported Fastest Known Time on the 223-mile John Muir Trail from Whitney Portals in 3 days, 12 hours, and 41 minutes. Their time from Whitney Summit (211 miles) was 3 days, 9 hours, and 5 minutes.
http://www.neverstopexploring.com/blog/2013/08/hal-koerner-and-mike-wolfe-set-a-new-fastest-known-time-record-on-the-john-muir-trail.html
Done "ultra style"