Insider: Kenyan runner Eliud Kipchoge finished a marathon in under 2 hours, sprinting at a 4:34-mile pace. Here's why his record doesn't count. Kenyan runner Eliud Kipchoge finished a marathon in under 2 hours, sprinting at a 4:34-mile pace.

Understanding the Context

Here's why his record doesn't count. Running at world record marathon pace pushes the human body to its absolute limit. In this attempt, an Olympian sets out to match that speed — revealing just how demanding it truly is. This is a look ...

Key Insights

Ugandan runner Jacob Kiplimo on Sunday set the world record for fastest time in the half-marathon, finishing the EDP Lisbon Half Marathon in 57:20, according to World Athletics. On Saturday, the Kenyan runner Eliud Kipchoge ran the first sub-2-hour marathon. But the achievement won't count as a world record. Nick Symmonds on MSN: No room for error - world record marathon speed Runner's World on MSN: At 49, I’m aiming to set a half marathon world record at London Landmarks – this is how I’m training Lisa Hale is hoping to set the world record for the ‘fastest female half marathon dressed as a body part’ – and in the process, turn grief into something bold, visible and conversation-starting ... At 49, I’m aiming to set a half marathon world record at London Landmarks – this is how I’m training