Sierre Zinal women’s champion busted for doping

Despite a positive test in May 2022, Esther Chesang still competed and won Sierre Zinal in August due to a failure of communication by the Anti-Doping Agency of Kenya

Anti-doping in trail and ultrarunning: is the Quartz program enough?

“Doping doesn’t concern us,” says Simon Pallet, chair of the Quartz Programme