Aleksandr Sorokin breaks 100K world record

Sorokin ran 6:05:41, averaging an insane pace of 3:39 per kilometre

Canada’s Catrin Jones snags top 10 Comrades finish

South Africa’s Gerda Steyn smashed the “up” course record by more than 10 minutes

Project Carbon X: Breaking2, Hoka-style

Watch ultrarunners Jim Walmsley, Mike Wardian and Sabrina Little, among others, try to break the 100K world record in the new Hoka Carbon X shoe, which contains a carbon-fibre midsole plate, on Saturday