The Iditarod Trail Sled Dog Race, usually just called the “Iditarod”, is an annual sled dog race in Alaska, where mushers and teams of typically 16 dogs cover 1,161 miles (1868 km) in eight to fifteen days from Willow (near Anchorage) to Nome. The Iditarod began in 1973 as an event to test the best sled dog mushers and teams, evolving into the highly competitive race it is today. The current fastest winning time record was set in 2002 by Martin Buser with a time of 8 days, 22 hours, 46 minutes, and 2 seconds. Frequently teams race through blizzards causing whiteout conditions, and sub-zero weather and gale-force winds which can cause the wind chill to reach −100 °F (−75 °C). The trail runs through the U.S. state of Alaska. A ceremonial start occurs in the city of Anchorage and is followed by the official restart in Willow, a city in the south central region of the state. The restart was originally in Wasilla, but due to too little snow, the restart was permanently moved to Willow in 2008. The trail proceeds from Willow up the Rainy Pass of the Alaska Range into the sparsely populated interior, and then along the shore of the Bering Sea, finally reaching Nome in western Alaska. The teams cross a harsh landscape under the canopy of the Northern Lights, through tundra and spruce forests, over hills and mountain passes, and across rivers. While the start in Anchorage is in the middle of a large urban center, most of the route passes through widely separated towns and villages, and small Athabaskan and Inupiaq settlements. The Iditarod is regarded as a symbolic link to the early history of the state, and is connected to many traditions commemorating the legacy of dog mushing. The race is the most popular sporting event in Alaska, and the top mushers and their teams of dogs are local celebrities; this popularity is credited with the resurgence of recreational mushing in the state since the 1970s. While the yearly field of more than fifty mushers and about a thousand dogs is still largely Alaskan, competitors from fourteen countries have completed the event including the Swiss Martin Buser, who became the first international winner in 1992. The Iditarod received more attention outside of the state after the 1985 victory of Libby Riddles, a long shot who became the first woman to win the race. Susan Butcher became the second woman to win the race, and went on to dominate for half a decade. Print and television journalists and crowds of spectators attend the start at the intersection of Fourth Avenue and D Streets in Anchorage, and in smaller numbers at the checkpoints along the trail.