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Boston 2 Big Sur Challenge presented by ASICS


The 2016 Challenge:
2 marathons
2 coasts
6 days

B2B Logo 2014

Only the fittest (or craziest!) ever attempt back-to-back marathons...much less 3,000 miles apart. 2016 will mark the seventh presentation of the Boston 2 Big Sur Challenge and we will welcome 400 of the world's fittest athletes to participate in two of the world's greatest marathons. 

NON-REFUNDABLE B2B ENTRY FEE (if selected in the drawing):  $260.00


  • Winners will be announced on Monday, October 12
  • Emails will be sent to those selected and those not selected
  • Because emails don't always land in someone's inbox, a list of those selected will also be posted HERE
  • Registration invites will be emailed to all winners on Tuesday, October 13.  If the invite doesn't land in your inbox, be sure to check your spam file or promotions folder (gmail). If you are unable to locate it, email sally@bsim.org
  • The registration period will last 10 days.  If you change your mind you are under no obligation to register, but please let us know.
  • If you are selected, and you are already registered for the open marathon via the July drawings, email sally@bsim.org.  We will void and refund your July open marathon registration.
  • If you have not registered by Thursday, October 22, at 11:59 p.m. you will forfeit your registration opportunity.
  • Those not selected will automatically be on a wait list in the order of the random selection number.

Questions?  Email sally@bsim.org.

All B2B participants will receive the following:

  • Your entry into the 2016 Big Sur Marathon as a B2B Challenge runner
  • A Boston 2 Big Sur ASICS finisher jacket in gender-specific sizing (will be distributed in the B2B finish hospitality tent along with the B2B medallion)
  • A Boston 2 Big Sur ASICS training shirt in gender specific sizing (sent in October 2015 after confirming your Boston entry)
  • custom participant bib and unique B2B finisher's medallion (you will also receive a BSIM finisher medallion)
  • Access to a catered B2B hospitality finish tent in Big Sur's Marathon Finish Village. You can purchase Guest Passes for friends and family to join you in the tent for $15 per ticket.
  • An entry to the Big Sur Post-Race Celebration Party to be held race evening.  Additional tickets can be purchased for $25. 
  • Awards are presented race day to the top five male and female participants based on their combined Boston and Big Sur times.

     Women's 2016 B2B Training Shirt Men's 2016 B2B Training Shirt
Challenge rules include:
  • To qualify for the challenge, you must also be an official entrant in the 2016 Boston Marathon. You can register for Boston either through your qualifying time or through one of their charity programs.  B2B registration fees do not cover your Boston entry.
  • If you are registered for B2B and Boston, but do not start or finish at Boston, you are no longer eligible for the B2B Challenge, medallion or finisher jacket. 

Questions? Or, for more information, email sally@bsim.org or call 831.625.6226