30 Apr '12, 2pm

A look at Vertical Kilometer races, including a great discussion of the races' future in the comments.

It doesn’t appear to require a super-steep course for a VK world record. Record-breaking runs seem to alternate between Fully and Chiavenna-Lagunc, with Fully’s gradient of 0.521 contrasting with the much less steep 0.303 at Chiavenna-Lagunc. Steepness may be less important than the terrain; the steps at Chiavenna-Lagunc may be irregular, even awkward, but they probably still help. Runners at races up stairs in skyscrapers often achieve significantly higher ascent rates than in mountain races, admittedly never over anything approaching 1,000 meters vertically. Indeed, the fastest ascent rate that I have found recorded in any mountain race worldwide is the 0.568m/s (853 meters of ascent in 2.9km horizontally in a time of 25:01) recorded by Sebastian Salas at the 2010 Grouse Grind just outside Vancouver (Canada), a course which has substantial sections of stepped path. Keepi...

Full article: http://www.irunfar.com/2012/04/the-30-minute-kilometer-a-...

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