Martin Buser is leading the Iditarod Trail Sled Dog Race Friday afternoon, at the head of a small but growing cadre of mushers who have taken both of their required layovers.

Iditarod XLII standings as of 5 p.m. show Buser as one of only four mushers to leave Galena Friday, taking the trail again at 11:15 a.m. His closest competition, Sonny Lindner, was more than an hour behind him at 12:38 p.m, with Aliy Zirkle -- first to Galena, earning $1,000 plus an array of salmon products from the Bristol Bay Native Corp. -- following at 2:16 p.m. and Jeff King at 3:27 p.m.

Only 10 of the race’s current 55 mushers have completed both their 24-hour and their eight-hour layovers, with many having paid a price in the standings for doing so. Those in the top 10 include Zirkle in third place, Robert Sorlie in sixth, Nicolas Petit in seventh and Kelly Maixner in 10th. The other five are as far back as Jessie Royer, in 19th place out of Ruby at 3:34 p.m.

Ramey Smyth became the race’s 14th musher to leave the trail and its 13th musher to scratch this year, ending his trip to Nome just before 2 p.m. Friday.

“Smyth indicated to checkpoint personnel that he had an illness in his team and was concerned for the welfare of his dogs,” Iditarod officials wrote in a statement announcing Smyth’s scratch, with 12 dogs still in his team.