In 2003, Betsy Kalmeyer smashed Burrell's record, running 9d10h52m. Betsy's time was beaten just 3 days later and by only a few minutes by Hal Koerner, 9d10h19m (shows the advantage of knowing the existing record!) Both Kalmeyer and Koerner ran east to west. Koerner started with Ian Torrence, who stopped after several days due to injury.
East to West
9d 10h 19m