Welcome to the blink-and-you’ll-miss-something Iditarod.We have a new second-place musher — Mitch Seavey . And a new third-place musher — John Baker. And a new fourth-place musher — Aaron BurmeisterSeavey, Baker and Burmeister arrived in Nulato in a span of one hur in fourth, fifth and sixth place, respectively. All departed swiftly, leaving Dallas Seavey and Jeff King behind.Ahead of the threesome, with a lead of more than three hours, is Aliy Zirkle.Baker, the defending champion from Kotzebue, said on Friday that a three-hour gap is one he believes he can close. His team got faster once the race hit the Yukon River and it should perform well once it gets to the Norton Sound coast.Seavey was the fourth racer to reach Nulato on Saturday, arriving at 9:11 a.m. He hung around till 9:32, leaving with 13 dogs.Baker arrived in fifth place at 9:33 a.m. with 13 dogs. He dropped one, then resumed racing at 9:37 a.m.Burmeister, who is driving 15 dogs, got there at 9:54 and left at 10:04.Read more here: http://community.adn.com/?q=adn/node/160247