Joshua Cheptegei smashes 5km world record with insane 12:51 in Monaco wearing Nike Vaporfly shoes



Updated

February 17, 2020 10:45:30

Joshua Cheptegei has smashed the 5km road world record in Monaco, sprinting around a course akin to that of your local Park Run in a time of 12 minutes, 51 seconds.

Key points:

  • Joshua Cheptegei broke the 13-minute barrier for the first time in a 5km race in Monaco
  • Cheptegei was wearing the controversial Nike Vaporfly shoes during his run
  • The new world record is 27 seconds faster than the previous record, which was set at the halfway point of a 10km road race

The Ugandan beat the existing world record, set by Kenyan runner Rhonex Kipruto, by a whopping 27 seconds.

“I had sub-13 minutes in my mind so when my legs felt good I decided to really go for it,” Cheptegei said after the race.

Needless to say, the Ugandan athlete broke the record while wearing the controversial Nike Vaporfly shoe.

Earlier this year, World Athletics tightened the regulations around the development of prototype shoes, although fell short of issuing a ban on the existing Nike shoes.

The four fastest official men’s marathon times in history, and seven of the top 10, have been set in the past 18 months by Nike-sponsored athletes wearing the shoes that Australian marathon legend Rob de Castella described as “ludicrous”.

Kipchoge also wore a modified version of the shoe for his historic sub-two-hour marathon in Vienna in October, although it did not count as an official record.

New regulations state that modified versions of the shoe cannot be used, and restricted the thickness of the sole to 40mm.

It can also request that an athlete hands over their shoes for testing immediately after a race that arouses suspicion.

Studies have shown the shoes do contribute to improved performance.

Journal Sports Medicine published a 2017 University of Colorado study of 18 high-calibre athletes which showed the shoes reduced the energetic cost of running by 4 per cent compared to two other types of marathon racing shoes.

In December, the New York Times published an analysis of more than 1 million marathon and half-marathon amateur times since 2014, of runners of all levels, finding that switching to the shoes gave a runner a “significant advantage over a competitor [of the same ability] not wearing them”.

Strava, the global social network for athletes, said in its 2019 review that the median marathon finish time for runners in the Vaporfly model Next% was 8.7 per cent faster than runners wearing the next fastest shoe, the Adidas Boston.

Cheptegei recently broke the 10km road world record with a time of 26:38, beating a record that stood for almost 10 years, before that was bested in January by Kipruto, who broke both the 5km and 10km records in Valencia.

The new record has not yet been officially ratified by World Athletics, with Kipruto’s record from January also still subject to ratification.

Cheptegei is the reigning world 10,000m champion after he claimed victory in Doha last year.

Topics:

sport,

athletics,

monaco

First posted

February 17, 2020 10:30:13





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