Peer-Reviewed Evidence — Viljoen et al., 2025
The Risk Landscape Is Real.
The Evidence Gap Is Worse.
Trail running fatalities aren't rare edge cases. They are documented, growing in frequency with the sport, and almost always preventable — if the right gear was carried. The problem is proving it happened.
104
fatalities documented across 20 years of global news reporting on trail and ultra events
64%
of those fatalities occurred during organised races — the events your participants sign up for
40%
of extrinsic deaths caused by cold weather and hypothermia — directly linked to inadequate mandatory gear
74%
of fatalities had no medical attention before death — teams simply could not reach them in time. The gear was the last line of defence.
6
catastrophic injuries documented — limb amputations, permanent brain damage, severe burns. All from foreseeable exposures.
Source: Viljoen et al., Wilderness & Environmental Medicine, 2025 — peer-reviewed study of serious adverse events 2004–2024