11th Annual Urban Iditarod - a race full of good, costumed shopcarting chaos March 4, 2006

From the site:

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The 12th Annual Urban Iditarod will be run Saturday, March 4th, 2006. Show up at noon. We mush at 1 PM sharp. You can pre-register by sending e-mail. The event is held on the same date the "real" race is begins each year - the first Saturday of March.

In the Alaskan Iditarod, more than sixty dog sled teams race across the frozen tundra from Anchorage to Nome. In our urban version, teams of "dogs" lead by a musher will pull their sleds (shopping carts) through some of San Francisco?s most touristed areas. These teams of barking humans must negotiate through the unrelenting and unforgiving dangers of San Francisco?s urban frontier. As an incentive to run, dogs and mushers alike will have several "rest stops" to replenish lost fluids and discuss tales of mayhem. The course is over three miles, so dogs and mushers alike need to be ready and able to run their tails off.

The Urban Iditarod is always free.
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Link and pictures: http://www.urbaniditarod.com/index.shtml