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HOKA ONE ONE® Project Carbon X 100K Challenge

Up for a challenge? Run 100K in 2 weeks.

Challenge Ended: May 17, 2019
Project Carbon X is coming. On May 4th, HOKA ONE ONE® athletes will attempt to break 100K and 10x10K World Records in the Carbon X, a shoe made with the latest innovation technology from HOKA ONE ONE®.

In honor of these world-record attempts, HOKA ONE ONE® is challenging you to run 100K between May 4th and May 17th. Run a little each day or the entire distance at once if you're feeling bold.

However you choose to run, it's Time to Fly™.

Learn more about and follow along with Project Carbon X here. Don't forget to join the HOKA ONE ONE® Club on Strava.
  • 54,242
    Participants
  • 3,711,118
    Total Kilometers Run
HOKA ONE ONE® Project Carbon X 100K Challenge logo