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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


  • Drawing registration will be open between 7 AM on October 1 and 11:59 PM on October 8.  The entry fee is $2.50.
  • You need to be registered for the 2016 Boston Marathon, planning to enter as a Boston charity runner, or have a BAA invitational registration to be eligible to participate in Boston 2 Big Sur.
  • You can only register ONCE for the drawing; if you register multiple times, the duplicate entries will be removed.
  • The date you enter the drawing will not effect your chances of being selected.
  • Drawing results will be announced on Monday, October 12.  Both those selected and not selected will be sent an email regarding their status.  Because emails don't always land in someone's inbox, we will also post a list of those selected HERE.
  • Registration invites will be sent to all selected on Tuesday, October 13.  You are under no obligation to register if you change your mind, but please email sally@bsim.org if that is the case.  Those selected will have 10 days to register for Boston 2 Big Sur. Beginning October 23 your registration opportunity will be voided.
  • There will be a wait list following the close of registration.  This will be based on the random selection order beginning with the first person not selected.  If a slot opens, we will notify the next person in line.
  • If you are already registered in the open Marathon (via the July drawings) and are selected during the B2B drawing, go ahead and register for B2B.  Email sally@bsim.org if this is your situation and we will void and refund your open marathon entry.
  • If you are registered in the open Marathon (via the July drawings) and are NOT selected in the B2B drawing, you may still run the Big Sur Marathon but are not eligible for the B2B perks.
  • Click the icon below to register for the drawing (the page will open at 7 AM on October 1):


    Register for the B2B Random Drawing

Questions?  Email sally@bsim.org

[The B.A.A. does not endorse the Boston 2 Big Sur Challenge promotion]     

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