Sports and recreation
Indoor rock climbing
Estimated acute risk associated with climbing at an indoor climbing gym.
Base risk estimate
0.001 micromorts per hours
Population-level estimate. Not a personal prediction.
Assumptions
Assumes bouldering or top-rope climbing at an indoor facility with padded flooring, safety equipment, and standard staff supervision.
Limitations
The true fatality rate may be lower than this estimate. Risk varies by climb difficulty, technique, fall awareness, and facility standards. No published national per-hour indoor climbing fatality rate exists. This estimate is a documented placeholder consistent with available industry data.
Source notes
Indoor climbing fatalities are extremely rare. The Climbing Wall Association (CWA) represents over 700 member climbing facilities in the US and tracks safety incidents across member facilities. CWA data documents only a small number of fatal incidents over multiple years against tens of millions of annual gym visits. Backe S et al. (Scand J Med Sci Sports 2009, PMID 18397196) studied injury incidence in a general climbing population; the paper focuses on injuries rather than fatalities, consistent with the rarity of indoor climbing deaths. The estimate of 0.001 µmt/hour is consistent with CWA safety records suggesting fewer than 5 confirmed indoor climbing gym fatalities per year in the US across an estimated 500+ million annual climbing gym visit-hours. A precise nationally published per-hour fatality rate does not exist.
Last reviewed
6/11/2026