December 1, 2020 – February 28, 2021

Hawai’i Running Lab’s Winter 30k/50k/50M Challenge Virtual Race registration will take place between December 1, 2020-February 28, 2021. Walk or run every 4 hours for a 24 hour period. For the 30k that is a 5k every 4 hours, 50k is 8.33K (5.17M) every 4 hours and 50 miles is 8.33 miles every 4 hours

  • Complete anywhere you like—just be safe
  • Register for event
  • Complete the registered distance in any 24 hour period in the race window
  • Celebrate your progress after each run by sharing on social media with #HRLWinterChallenge30k50k50M and let us know what leg you are on out of the 6 runs
  • Post results in race roster to receive finisher prize


  • Every runner receives 1 (one) free item of their choice from our HRL shop which includes HRL Winter Challenge 30k 50k 50M t-shirt and hat
  • Runners who sign up for 2 challenges can choose any 2 items in the shop for free with registration. Runners who sign up for all 3 can choose any 3 items in the shop.
  • This is a virtual event–meaning that you can complete it anywhere and anytime in the provided race window. Please be safe and follow all CDC and local COVID-19 guidelines and laws. Shipping fees of $8 for all US addresses and $22 for international shipments.
  • All HRL gear can be purchased during registration or separately at


  • Please share your run photos after each run leg and tag @hawaiirunninglab & use our event hashtag #HRLWinterChallenge30k50k50M, we would love to share your excitement on our social media!
  • Please upload results thru Race Roster to receive your special finishers award.
  • Each registrant will also receive their own personalized link to share with friends, each friend that signs up thru that link earns you $5–so share with some friends and earn some extra cash. Runners who have 3 or more friends register thru their personalized link will also receive a free singlet from HRL.


  • To top it all off—for each 50 runners that register, we are going to randomly draw one winner to receive 4 free weeks of HRL’s Let’s Talk coaching plan valued at up to $200.

Check out this link for more information