Article updated: 3/9/2013 8:52 PM

Iditarod front-runner going for fifth win

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Four-time Iditarod Trail sled dog race champion Jeff King arrives Friday in Anvik, Alaska.

Associated Press

Musher Ken Anderson drives his team up the Yukon River.

Associated Press

Iditarod musher Ken Anderson feeds his sled dogs Friday in Anvik, Alaska.

Associated Press

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Four-time champion Martin Buser held on to the lead Saturday in Alaska's Iditarod Trail Sled Dog Race, but his closest chasers were gaining on him, their dogs averaging faster speeds.Buser is hoping to be only the second musher to ever claim a fifth title in the race's 40-year-history.