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.
East to West, Collegiate East
9d 10h 52m 0s