Burmeister in and out of Shaktoolik

As Burmeister works twice as hard to cover the same miles as Dallas, he makes the decision to blow through Shaktoolik and jumps back into the lead as Dallas catches some rest.  I don't think Aaron will keep the lead for long.  Meanwhile Mitch and Aliy battle it out on the trail to Shaktoolik.  Mitch now is 4 miles ahead of her according to the GPS tracker!