I just completed the Trans-Zion 48 mile route from La Verkin to East Rim (west to east), today November 16th 2011. I was on a trip with my boyfriend to do the r2r2r, when he suggested I try to set a trans-zion women's time. We both ran the route today, unsupported, although we ran together most the day, carrying all our own gear. We began at 7:20am at the La Verkin trailhead, and finished at 7:07pm at the East Rim Trailhead. I ran the route in 11:47:00. We have the GPS data and lots of pictures that we will post on my blog within the next week. My blog address is http://www.wilddefined.com/2011/11/trans-zion-report-how-to-not-taper.html
Let me know what kind of verification you need, thanks!