Leadville Race Series Kicks Off with Sold Out Life Time Leadville Trail Marathon and Heavy Half presented by La Sportiva
June 28, 2025

Nearly 1,900 athletes from around the globe tackle America's most challenging marathon course
Leadville, CO., (June 28, 2025) /ENDURANCE SPORTSWIRE/ – Life Time (NYSE: LTH), the nation’s premier healthy lifestyle brand and producer of nearly 30 iconic athletic events, welcomed nearly 1,900 runners to the highest incorporated city in the United States – Leadville, Colorado – for the Life Time Leadville Trail Marathon and Heavy Half presented by La Sportiva today.
Athletes from 48 states and 13 countries tested themselves against the historic and notoriously challenging terrain of the Leadville mining district. The Trail Marathon and Heavy Half are the opening events of the Leadville Race Series and kick off five weekends of endurance racing this summer.
Both the Marathon and Heavy Half follow demanding out-and-back routes that summit Mosquito Pass at 13,185 feet – America’s highest continuous pass as well as the highest point across the entire Leadville Race Series. The marathon’s brutal 6,167-foot elevation gain has earned it recognition as the nation’s toughest marathon. The Heavy Half’s 15.4-mile course presents its own formidable challenge with 3,421 feet of climbing to the same alpine summit.
“This weekend was the perfect kick-off to our 2025 Leadville Race Series,” shared Amanda Kussin, Marketing Manager for the Life Time Leadville Race Series. “Life Time is committed to delivering life-changing events, like the Marathon and Heavy Half, that challenge what people think they’re capable of. Congratulations to all our finishers and your amazing grit, guts and determination to conquer one of the most challenging races in the series. We’re looking forward to the summer ahead!”
Full race results are available here. Top finishers across the events include:
Marathon – Women’s Top Finishers
Name | City | Age | Time |
Anne Flower | Colorado Springs, CO | 35 | 4:09:56 |
Imogen Ainsworth | Poncha Springs, CO | 36 | 4:23:28 |
Natalie Nicholson | Dolores, CO | 43 | 4:30:43 |
Marathon – Men’s Top Finishers
Name | City | Age | Time |
Brian Burgess | Avon, CO | 40 | 3:34:56 |
Bryan Kerl | Salida, CO | 33 | 3:35:19 |
Mitchell Day | Manitou Springs, CO | 26 | 3:48:05 |
Heavy Half – Women’s Top Finishers
Name | City | Age | Time |
Kylie Simshauser | Florence, CO | 22 | 2:26:37 |
Alison Rudy | Leadville, CO | 25 | 2:41:08 |
Kathryn Harrison | Denver, CO | 36 | 2:48:11 |
Heavy Half – Men’s Top Finishers
Name | City | Age | Time |
Seth Demoor | Lakewood, CO | 40 | 1:58:14 |
Braddock Hewitt | Colorado Springs, CO | 14 | 2:15:49 |
Kamran Murray | Portola Valley, CA | 21 | 2:22:29 |
Half Marathon – Non-Binary Top Finishers
Name | City | Age | Time |
Nic Brynn | Denver, CO | 47 | 3:50:18 |
The Life Time Leadville Marathon and Heavy Half presented by Sportiva is the first event of the 2025 Leadville Race Series. The Life Time Leadville Race Series is a part of nearly 30 premier athletic events owned and produced by Life Time, including the Miami Marathon, UNBOUND Gravel, the Sea Otter Classic, and Big Sugar Gravel. Athletes seeking entry into the prestigious Leadville Trail 100 Run and MTB events can earn their way in through numerous qualifying race, including Life Time’s newest event the Life Time Coldwater Trail presented by Sunny King Auto. The inaugural race will take place in Anniston, AL this October. For more information on the Leadville Race Series and qualifying events visit www.leadvilleraceseries.com.
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About Life Time
Life Time (NYSE: LTH) empowers people to live healthy, happy lives through its portfolio of more than 180 athletic country clubs across the United States and Canada, the complimentary, comprehensive Life Time app and nearly 30 of the most iconic athletic events in the country. The health and wellness pioneer uniquely serves people 90 days to 90+ years old through its healthy living, healthy aging, healthy entertainment communities and ecosystem, along with a range of healthy way of life programs and information, and highly trusted LTH nutritional supplements and products. Life Time was recently certified as a Great Place to Work®, reinforcing its commitment to fostering an exceptional workplace culture on behalf of its more than 43,000 dedicated team members.
Media Contact: Maddy Rivard | 651.955.7739 | mrivard@lt.life | LTAthleticEvents@Finnpartners.com
Images and b-roll: HERE