Jim Walmsley Withdraws from UTMB Due to Knee Injury — image accompanying Marathon Handbook's report. Image accompanying Marathon Handbook’s report; reduced and presented for news commentary with the attributed report. View the complete source report.
Jim Walmsley withdrew from UTMB due to a knee injury, confirmed by his representatives. His withdrawal comes a week before the race starts. The race covers 108 miles with 32,500 feet of climbing.
Kilian Jornet also withdrew due to knee surgery, leaving the men’s race without its top two entrants. Walmsley’s UTMB Index was the highest in the field, followed by Jornet’s. Walmsley has applied for an injury deferral to 2027. Read more trail coverage.
Walmsley’s last race was Western States, where he dropped out at mile 62. His last finish was at the Long Trail world title in 2025. He holds the UTMB men’s record from 2023. Related: Kilian Jornet Withdraws from UTMB Due to Knee Injury.
This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.
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What should runners know about Jim Walmsley Withdraws from UTMB Due to Knee Injury?
Top runner Jim Walmsley out of UTMB, leaving race without top two entrants. Jim Walmsley withdrew from UTMB due to a knee injury, confirmed by his representatives. His withdrawal comes a week before the race starts. The race covers 108 miles with 32,500 feet of climbing.
When did Runner World publish this trail brief?
Runner World published this brief on August 22, 2026. The underlying Marathon Handbook report was dated August 21, 2026.
Where can readers find the complete original report?
This summary is based on reporting from Marathon Handbook. The attributed source link in the article leads to the publisher’s complete report.
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