Biofreeze San Francisco Double Up Challenge

Are you up for an extra challenge this year at Biofreeze San Francisco Marathon? Double Up on race weekend and run both our Saturday, July 27th 5k and a half or full marathon or Ultra on Sunday, July 28th! To be part of this inaugural challenge, choose one of the following options at registration:

  • Double Up Half (5k + Half)
  • Double Up Full (5k + Full)
  • Double Up Ultra (5k + Ultra)

Be a part of this inaugural 16.2k, 29.3k or 55.5k challenge and earn triple bling – your 5K, half,  full or ultra and Double Up Challenge medal plus long sleeve tech shirt for the longest distance you ran.

There are only 1,000 spots available for this Double Up Challenge, don’t delay it will fill up fast!

If you’ve already registered for the half or full marathon and want to take the challenge, please email us at to upgrade.