Find out what to expect along the Boston Marathon course
Fluid Replacement
On-Course Hydration Stations
From mile two to mile 25, there will be hydration stations at every mile on both sides of the road. Each station will first have four tables of Lemon-Lime Gatorade Endurance Formula, and the remaining tables will have Poland Spring water.
Powerbar Gel Station, Mile 17
As you approach the hills of Newton, be sure to fuel up at the PowerBar Gel Station at Mile 17. Volunteers will be on both sides of the road, and will be wearing different colored shirts to designate which of the six flavors they're distributing. The six flavors are. 
- Orange Dream (No Caffeine)
- Chocolate (1x Caffeine)
- Vanilla (No Caffeine)
- Pomegranate Blueberry Acai (No Caffeine)
- Strawberry Banana (1x Caffeine)
- Double Latte (2x Caffeine)
Course Clocks and Mile/Kilometer Signage
Digital clocks, positioned at every mile and 5K mark, indicate the unofficial running time from the 10:00 a.m. start only. Signage indicates mile and 5K marks.
Drop out and Course Closure
- Runners unable to finish the race may stop for assistance and direction at one of the 26 American Red Cross first aid stations along the course.
- Sweep buses pick up runners at every Red Cross 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 4:50 p.m.
- Runners still out on the course when officials determine that it is time to reopen the roads (approximately a 15-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 be closed 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 15-minute per mile pace.
Toilets
For your convenience and use during the race, the B.A.A. provides toilets at the following locations on the course:
- Mile 3 - Ashland
- Mile 7 - Framingham
- Mile 10 - Natick
- Mile 12 - Wellesley
- Mile 18 - Newton
- Mile 23.5 – Brookline
These are in addition to the toilets at every water and Red Cross station. Please respect the communities through which the Boston Marathon runs by taking advantage of these facilities, if needed.
At The Finish Line
At the Finish, volunteers will direct you to:
- Medical support: Complete and staffed medical facilities will be at the Finish.
- The B.A.A. is not responsible for race-related injuries, and athletes are responsible for individual expenses incurred. Only runners needing medical attention will be allowed to enter the medical area.
- Poland Spring Water, Gatorade Endurance Formula, and Gatorade Recovery Beverage, PowerBars, assorted snack foods, fruit, and additional products.
- Heatsheet blankets and Finisher’s medals.
- You do not need to return your bib/timing device. It is yours to keep.
- Baggage buses and changing tents. No showers are available.
- NOTE: As a courtesy to others, please move out of the Finish Area once you have gathered your belongings.