Trail running has seen significant prize money growth, but its drug-testing system lags behind. UTMB, a leading event, doubled its prize purse to 344,500 euros in 2024. Yet, its drug-testing program remains opaque, lacking transparency on the number and type of tests conducted.

Western States, another prestigious race, partners with the USADA but focuses on post-race urine tests. This approach misses athletes who might use performance-enhancing drugs during training. Elite trail runners face inconsistent testing, with only World Athletics events providing year-round monitoring. Read more racing coverage.

A study found that most ultramarathon organizers lack a formal anti-doping policy. Only a few follow external rules, and none have sanctioned athletes for doping. The lack of a unified testing system leaves elite trail runners with little oversight throughout the season. Related: Canadian runners face tough competition at World Athletics U20 Championships.

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