Harry Marshall, from Whistler, B.C., completed the Icefields Parkway in 30 hours, two minutes, and 31 seconds. He beat the previous record set by Samuel Dickie in 2020. The route covers 230 km from Lake Louise to Jasper, with over 2,200 meters of elevation gain.

Marshall's run was supported by a six-person crew who met him every 10 km. He faced heat, dehydration, and a severe storm during the run. Despite the challenges, he found joy in running under a full moon and witnessing a partial lunar eclipse. Read more trail coverage.

This achievement is part of Marshall's ongoing personal project, which began after losing his brother and mother. He plans to consider future challenges, including a potential run on Vancouver Island's Spine Trail. Related: Cornwall ultrarunner sets new Vermont Long Trail speed record.

This original Runner World brief is based on reporting from Canadian Running. Visit the source for its complete reporting, context and any later corrections.