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Science in Sport Christmas Challenge

Run 10 km this holiday season for a chance to win big.

Challenge Ended: December 31, 2017
Science in Sport, the leader in endurance sports nutrition, has teamed up with its partners at the Rock 'n' Roll Marathon Series to challenge you to keep active over the holiday season!

SiS is challenging everyone to run 10 km over the two-week challenge period. If you do, you'll have a chance to win a VIP experience to a Rock 'n' Roll running event of your choice, plus flights and accommodation for you and a friend! There are even additional prizes, including a Garmin smartwatch and Jaybird wireless headphones. Every participant to complete the challenge will also receive an exclusive voucher to use at

Be sure to join the Science in Sport club to stay up to date with the latest from SiS.

Get out there and get running!
  • 18,337
  • 1,086,218
    Total Kilometers Run
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