10 hours, 20mph average, 300km: Strava stats reveal brutal efforts behind Unbound Gravel 2021

The unique off-road event picked up more attention than ever - but how hard is it?

Unbound Gravel 2021
Unbound Gravel 2021
(Image credit: Mark Reinstein/Zuma Press/PA Images)

Unbound Gravel may not have been a familiar event for many cycling fans before this year, but the 2021 event appears to have captured the imaginations of a whole new audience.

This year’s Unbound Gravel, previously called Dirty Kanza before the name change due to its links to a Native American tribe, attracted a star-studded field as former WorldTour riders reinvent themselves as off-road specialists.

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Alex Ballinger

Alex Ballinger is editor of BikeBiz magazine, the leading publication for the UK cycle industry, and is the former digital news editor for CyclingWeekly.com. After gaining experience in local newsrooms, national newspapers and in digital journalism, Alex found his calling in cycling, first as a reporter, then as news editor responsible for Cycling Weekly's online news output, and now as the editor of BikeBiz. Since pro cycling first captured his heart during the 2010 Tour de France (specifically the Contador-Schleck battle) Alex covered three Tours de France, multiple editions of the Tour of Britain, and the World Championships, while both writing and video presenting for Cycling Weekly. He also specialises in fitness writing, often throwing himself into the deep end to help readers improve their own power numbers.  Away from the desk, Alex can be found racing time trials, riding BMX and mountain bikes, or exploring off-road on his gravel bike. He’s also an avid gamer, and can usually be found buried in an eclectic selection of books.