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Western States Endurance Run
Western States Endurance Run patch.png
Western States Endurance Run logo patch
Date Last weekend of June
Location Squaw Valley, California
Event type Ultramarathon trail run
Distance 100 miles (161 km)
Established 1977
Course records Men: 14:09:28 (2019)
Jim Walmsley
Women: 16:47:19 (2012)
Ellie Greenwood
Official site www.wser.org
Hanging with the Oregonians
Runners at the Western States 100 in 2010.
Western States 100 Finish Line
The finish line for the Western States 100 at Placer High School.

The Western States Endurance Run, often called the Western States 100, is a super long race. It's 100 miles (161 km) long! This amazing race happens every year in California's Sierra Nevada Mountains. Runners tackle tough trails on the last weekend of June.

The race begins at the Squaw Valley ski resort. It ends at the Placer High School track in Auburn, California. The trails are very rugged. Runners often face snow on the highest parts. They also deal with super hot temperatures along the course.

Athletes climb a total of 18,090 feet (5500 m). They then go down 22,970 feet (7000 m) on mountain trails. Because it's so long, the race starts at 5 a.m. and continues all day and night. Runners have 30 hours to finish. If they finish in under 30 hours, they get a cool bronze belt buckle. If they finish in under 24 hours, they earn a silver belt buckle!

The Western States 100 is supported by Altra, a shoe company. It's also one of five 100-mile races that make up the Grand Slam of Ultrarunning. The other races include the Old Dominion 100, the Vermont 100 Mile Endurance Run, the Wasatch Front 100 Mile Endurance Run in Utah, and the Leadville Trail 100 in Colorado.

How the Western States 100 Started

The Western States Endurance Run has a really interesting beginning. It started with a horse race! The Western States Trail Ride is a 100-mile horse endurance race. In 1972, seven soldiers from Fort Riley, Kansas, walked the entire course. They showed that the 100-mile mountain path could be completed in less than two days on foot.

In 1974, a man named Gordy Ainsleigh made history. He was the first person to run the course in under 24 hours. Gordy had ridden horses in the Tevis Cup in 1971 and 1972. But in 1973, his horse got hurt. So, in 1974, he decided to try running it. With encouragement from Drucilla Barner, Gordy joined the horse riders. He wanted to see if he could finish the 100 miles on foot in one day. Twenty-three hours and forty-two minutes later, Gordy reached Auburn. He proved that a runner could indeed travel 100 miles in a single day!

In 1975, Ron Kelley also ran the course with the horses. He completed 97 miles before he had to stop. In 1976, Ken "Cowman" Shirk was the next to finish the course. Gordy Ainsleigh even helped him by running the last 25 miles with him.

The First Official Race

The first official Western States Endurance Run took place in 1977. Sixteen runners signed up. They started alongside the horses in the Tevis Cup. It was a very tough race. Thirteen of the 16 runners had to drop out by the halfway point. Only three runners kept going.

Only one of those three, Andy Gonzales, finished within the 24-hour time limit set for the horses. The other two, Peter Mattei and Ralph Paffenbarger, finished a bit later. They completed the race in 28 hours and 36 minutes. This led to the rule that runners would have a 30-hour time limit to earn a bronze buckle. Later, the Run became its own group, called The Western States Endurance Run Foundation.

In 1978, the race was held on a different day than the horse ride. Sixty-three runners competed that year, and 30 of them finished.

Getting into the Race

As the race became more famous, it got harder to get a spot. In 1981, they started a lottery system. This helps decide who gets to run. A few spots are saved for the top two men and women from five special "Golden Ticket Series" races. Also, the top ten finishers from the previous Western States race get a spot. After these spots are given out, a lottery is held for the rest of the runners. In 2017, they added a waitlist. This makes sure all 369 starting spots are filled.

In 1984, a special protected area called the Granite Chief Wilderness was created. About four miles of the race trail went through this new wilderness. Normally, organized events aren't allowed in wilderness areas. But in 1988, the U.S. Congress gave special permission for the Endurance Run (and the original horse ride) to continue. However, they limited the number of runners to 369, which was the size of the race in 1984.

Amazing Race Results and Winners

Many incredible athletes have run the Western States 100. Here are some of the most famous:

  • Tim Twietmeyer, a runner from California, finished the race a record 25 times! All of his finishes were in under 24 hours. He also won the race five times.
  • Scott Jurek won the men's race seven times in a row, from 1999 to 2005.
  • Ann Trason won the women's race an amazing fourteen times!

Notable Races and Records

  • In 2008, the race was canceled. This was due to bad air quality from many wildfires in California.
  • In 2010, Geoff Roes set a new course record with a time of 15:07:04. Tracy Garneau won the women's race. Also, Amy Palmiero-Winters, who uses a prosthetic leg, became the first amputee to finish the race.
  • In 2012, Ellie Greenwood broke Ann Trason's long-standing women's record. She finished in 16:47:19, nearly an hour faster! That same year, Timothy Olson set a new men's course record with 14:46:44.
  • In 2016, Andrew Miller, at 20 years old, became the youngest male winner. This happened after Jim Walmsley, who was expected to win, took a wrong turn near the end.
  • In 2018, Jim Walmsley came back and broke the course record with a time of 14:30:04. He was even delayed for a few minutes by a mother bear and her cubs on the trail!
  • In 2019, Jim Walmsley broke his own record again! His new record time was 14:09:28.
  • The 2020 race was canceled because of the COVID-19 pandemic.

Men's Winners List

Year Winner Time Age Country
2020 -- -- -- --
2019 Jim Walmsley 14:09:28 29  United States
2018 Jim Walmsley 14:30:04 28  United States
2017 Ryan Sandes 16:19:38 35  South Africa
2016 Andrew Miller 15:39:36 20  United States
2015 Rob Krar 14:48:59 38  Canada
2014 Rob Krar 14:53:22 37  Canada
2013 Timothy Olson 15:17:27 29  United States
2012 Timothy Olson 14:46:44 28  United States
2011 Kilian Jornet 15:34:24 23  Spain
2010 Geoff Roes 15:07:04 34  United States
2009 Hal Koerner 16:24:55 33  United States
2008 -- -- -- --
2007 Hal Koerner 16:12:16 31  United States
2006 Graham Cooper 18:17:28 36  United States
2005 Scott Jurek 16:40:45 31  United States
2004 Scott Jurek 15:36:27 30  United States
2003 Scott Jurek 16:01:18 29  United States
2002 Scott Jurek 16:19:10 28  United States
2001 Scott Jurek 16:38:30 27  United States
2000 Scott Jurek 17:17:24 26  United States
1999 Scott Jurek 17:34:22 25  United States
1998 Tim Twietmeyer 17:51:20 39  United States
1997 Mike Morton 15:40:41 25  United States
1996 Tim Twietmeyer 17:42:06 37  United States
1995 Tim Twietmeyer 18:34:58 36  United States
1994 Tim Twietmeyer 16:51:01 35  United States
1993 Tom Johnson 17:08:34 34  United States
1992 Tim Twietmeyer 16:54:16 33  United States
1991 Tom Johnson 15:54:05 32  United States
1990 Tom Johnson 16:38:52 31  United States
1989 Mark Brotherton 16:53:39 32  United States
1988 Brian Purcell 16:24:00 32  United States
1987 Herb Tanzer 17:41:06 35  United States
1986 Chuck Jones 16:37:47 27  United States
1985 Jim King 16:02:44 28  United States
1984 Jim King 14:54:00 27  United States
1983 Jim Howard 16:07:00 29  United States
1982 Jim King 16:17:00 25  United States
1981 Jim Howard 16:02:37 27  United States
1980 Mike Catlin 18:35:42 28  United States
1979 Mike Catlin 16:11:56 27  United States
1978 Andy Gonzalez 18:50:00 23  United States
1977 Andy Gonzalez 22:57:00 22  United States
1976 Ken Shirk 24:30:00 23  United States
1974 Gordy Ainsleigh 23:42:20 26  United States

Women's Winners List

Year Winner Time Age Country
2020 -- -- -- --
2019 Clare Gallagher 17:23:24 27  United States
2018 Courtney Dauwalter 17:27:00 33  United States
2017 Cat Bradley 19:31:31 25  United States
2016 Kaci Lickteig 17:57:59 29  United States
2015 Magdalena Boulet 19:05:21 41  United States
2014 Stephanie Howe 18:01:42 30  United States
2013 Pam Smith 18:37:21 38  United States
2012 Ellie Greenwood 16:47:19 33  United Kingdom
2011 Ellie Greenwood 17:55:29 32  United Kingdom
2010 Tracy Garneau 19:01:55 41  Canada
2009 Anita Ortiz 18:24:17 45  United States
2008 -- -- -- --
2007 Nikki Kimball 18:12:38 36  United States
2006 Nikki Kimball 19:26:51 35  United States
2005 Annette Bednosky 18:39:01 38  United States
2004 Nikki Kimball 18:43:25 33  United States
2003 Ann Trason 18:36:03 42  United States
2002 Ann Trason 18:16:26 41  United States
2001 Ann Trason 18:33:34 40  United States
2000 Ann Trason 19:44:42 39  United States
1999 Suzanne Brana 21:23:39 41  United States
1998 Ann Trason 18:46:16 37  United States
1997 Ann Trason 19:19:49 36  United States
1996 Ann Trason 18:57:36 35  United States
1995 Ann Trason 18:40:01 34  United States
1994 Ann Trason 17:37:51 33  United States
1993 Ann Trason 19:05:22 32  United States
1992 Ann Trason 18:14:48 31  United States
1991 Ann Trason 18:29:37 30  United States
1990 Ann Trason 18:33:02 29  United States
1989 Ann Trason 18:47:46 28  United States
1988 Kathy D'Onofrio-Wood 18:52:40 23  United States
1987 Mary Hammes 21:23:37 27  United States
1986 Kathy D'Onofrio-Wood 20:58:16 21  United States
1985 Terri Gerber 20:30:03 36  United States
1984 Judy Milkie-West 20:04:00 34  United States
1983 Bjorg Austrheim-Smith 19:11:00 40  United States
1982 Bjorg Austrheim-Smith 18:23:00 39  United States
1981 Bjorg Austrheim-Smith 18:46:00 38  United States
1980 Sally Edwards 22:13:44 32  United States
1979 Skip Swannack 21:56:27 37  United States
1978 Pat Smythe 29:34:00 35  United States
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