Denise Zimmermann

About

Denise Zimmermann is a Swiss trail and ultrarunner born in 1975 who stands among the most decorated long-course mountain athletes Switzerland has produced, guided by the philosophy that the longer and harder the race, the better she performs. She built a career of rare consistency across the major European mountain ultra circuit, competing at the highest level at events from Transgrancanaria to UTMB over more than two decades. By 2015 she had completed the Ultra-Trail du Mont-Blanc four times, and that year finished third overall — in near-record temperatures — to record the most celebrated result of her career. The same season she won at Verbier X-Alpine and was named Swiss Female Runner of the Year, an award she also claimed in 2016. In 2017 she became Swiss Mountain Trail Champion and won the overall Ultra Trail World Tour title. Zimmermann's later career demonstrated extraordinary resilience: after a cancer diagnosis and treatment that forced an extended absence from competition, she returned to finish second at the Ultra Tour Monte Rosa and continued competing at the highest level in European trail racing. As recently as 2025, she won the women's race and finished 6th overall at the Eiger Ultra Trail by UTMB — evidence that her competitive range and determination have never dimmed.

Notable Wins

• — Eiger Ultra Trail by UTMB 2025 (women's winner
• — 6th overall)
• — UTMB Mont-Blanc 2015 3rd (fourth UTMB finish)
• — Ultra Trail World Tour Champion 2017
• — Swiss Mountain Trail Champion 2017
• — Verbier X-Alpine 2015
• — Swiss Female Runner of the Year 2015
• — 2016
• — Transgrancanaria 2013 4th
• — Lavaredo Ultra Trail 6th
• — Ultra Tour Monte Rosa 2nd (post-cancer comeback)

Race History