Fluid Replacement
  • Poland Spring Water and Lemon Lime Gatorade Endurance Formula stations will be set up along the course beginning at Mile Two.
Energy Gel Stations
  • Three Maurten Shot Energy Gel stations will be located on the course: mile 11.8 on the Wellesley town line; mile 17 in Newton; and at mile 21.5 just after Boston College.
  • Maurten’s Gel 100 and Gel 100 CAF 100 will be available
Course Clocks and Mile/Kilometer Signage
  • Digital clocks, positioned at every 5K mark and key mile locations, indicate the unofficial running time from the 9:00 a.m. start only.
  • Signage indicates mile and 5K marks.
Drop out
  • Runners unable to finish the race may stop for assistance and direction at one of the 26 medical stations along the course.
  • Sweep buses pick up runners at every medical station with drop-off at the Finish Area medical tent.
  • Aid stations along the course close at staggered times during the day.
  • Finish area facilities officially close at approximately 5:30 p.m.
Course Closure
  • Runners still out on the course when officials determine that it is time to reopen the roads (approximately a 14:23 minute-per-mile pace) will be instructed to move to the right side of the road.
  • Once roads begin to reopen to vehicular traffic, course infrastructure (such as timing systems, course clocks, medical stations, and water stations) will all begin to close and cease operation.
  • Runners on the course after this time accept that they will be on their own and should plan accordingly.
  • The B.A.A. will have a team of cyclists in the rear of the pack to assist runners who are at or slower than 14:23-minute-per-mile pace.
  • For your convenience and use during the race, the B.A.A. provides toilets at every water and medical station, as well as at additional locations along the course.
  • Please respect the communities through which the Boston Marathon runs by taking advantage of these facilities, if needed.