The First Person To Run 100KM In Under Six Hours
โ€” 27 August 2025

The First Person To Run 100KM In Under Six Hours

โ€” 27 August 2025
Garry Lu
WORDS BY
Garry Lu
  • South African Sibusiso Kubheka has broken the six-hour barrier after completing 100 kilometres in a blistering 5:59:20.
  • Accomplished at Adidasโ€™ Chasing 100 event, hosted at Italyโ€™s Nardo Ring auto racing test track, the 27-year-old outpaced notable ultrarunners such as Aleksandr Sorokin.
  • But this feat came at a price โ€“ one that disqualifies Kubheka from being officially recognised for the world record.

On a 12.5-kilometre Italian test track designed for high-performance cars, and in the dead of night, Sibusiso Kubheka inked his chapter in the annals of running history (though not the world record books) after a relentless sub-six-hour effort.

At 5:59:20, the 27-year-old South African endurance runner became the first person to break the six hour barrier, beating the likes of Lithuaniaโ€™s Aleksandr Sorokin (who finished third with 6:04:10), US talent Charlie Lawrence (who finished second with 6:03:47), as well as Japanโ€™s Jo Fukuda and Ethiopiaโ€™s Ketema Negasa.

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Thatโ€™s a 5:46.98 split in miles, 3:35.6 split in kilometres, or almost two and a half marathons at a 2:31:37 pace.

โ€œIโ€™m so proud of my performance out there today. Breaking this record and becoming the first person to run 100 kilometres in under six hours was not easy,โ€ said Kubheka.

โ€œBut thanks to Adidasโ€™ partnership, belief, and bespoke technologies, we made it happen. When we combine the best athletes, the right preparation, and sports Innovation, anything is possible.โ€

Alasdhair Willis, Chief Creative Officer at Adidas, added: โ€œChasing 100 is the story of our deep-rooted drive to go faster. An opportunity to see whatโ€™s possible when we work at speed, break new boundaries in design, and test new possibilities in footwear and apparel.โ€

โ€œKubhekaโ€™s history-defining performance โ€“ achieving something no one has ever come close to โ€“ is an immense achievement that we are incredibly proud of. This is a true testament to the power of combining adidas Innovation with the very best of athletic prowess to push the limits of human capability forward.โ€

As you can imagine, Chasing 100 wasnโ€™t without an agenda. All five competing athletes were dressed in state-of-the-art Adidas footwear and apparel, precision-engineered and custom-tailored to maximise performance. From Adizero Evo Prime X sneakers with Ultracharge for a โ€œmore alive underfootโ€ and the CLIMACOOL jackets for enhanced thermal regulation to the Clima 3D singlets and TechFit short tights, they were afforded several advantages.

Sibusiso Kubheka managed to shave off six minutes and 15 seconds from the previous fastest time for a 100-kilometre run.

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According to Runnerโ€™s World, the use of intermittent pacers, Nardo Ringโ€™s status as an โ€œuncertified course,โ€ as well as the high stack height of the unratified prototype shoes (10mm higher than the World Athletics legal limit) means Kubhekaโ€™s unprecedented time is ineligible for world record consideration.

โ€œIf the Adizero Evo Prime X shoes are eventually released to the public, they will be prohibited for professional athletes to wear in sanctioned races because of the excessive stack height, notes Brian Metzler of the running publication.

Stillโ€ฆ an almost unfathomable performance for us mere mortals.


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Garry Lu
WORDS by
After stretching his legs with companies such as The Motley Fool and the odd marketing agency, Garry joined Boss Hunting in 2019 as a fully-fledged Content Specialist. In 2021, he was promoted to News Editor. Garry proudly retains a blue belt in Brazilian Jiu-Jitsu, black bruises from Muay Thai, as well as a black belt in all things pop culture. Drop him a line at [email protected]

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