On March 9, 2013 I hiked the Hut Traverse via the commonly used standard route, including Madison, Mitzpah, and Galehead huts in 23 hours 7 minutes. This differs from Tim Seaver's partial route, where he only visited the huts that are open in winter. This is the only sub-24 hour completion of the route in winter that I'm aware of.
GPS Track: www.movescount.com/moves/move11526743
Suffice to say, it was epic. Though with snowshoes and a winter pack I can't really call it "running" even though I did jog a few sections. Given the same conditions I'm certain several hours could be shaved off, but I opted to be a bit conservative.