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Sat Sep



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Charles River Marathon & Half Marathon Relay

Join us at the inaugural Charles River Marathon and Half Marathon Relay. The USATF Certified course is a flat 2.6 mile loop around Boston’s scenic Charles River. Marathoners run ten laps. Relay teams run 5 laps with 3, 4, or 5 runners.

No surprise fees - what you see is what you pay.
7:00 AM
Medals for all finishers. Trophies & prizes for top 3 male & female overall, and age group champs.
7:10 AM
Teams can have 3, 4, or 5 runners. Prizes for fastest female team, fastest top male team, and fastest mixed team.
6:00 AM
Volunteers get a free tshirt and drink tickets for the post-race party.
7:00 AM
Run 3-10 laps at a consistent pace and lead a BQ group running from 6:56/mile up to 11:07/mile.
5:30 PM
Get a free hat and free entry into Super Sunday, or a refund if you've already signed up.
Please select a race.

Join us on September 9th, 2017 for Boston RunFest, a partnership between RACE Cancer Foundation and the Pediatric Brain Tumor Foundation to bring a full day of charitable running events to Herter Park. The day begins with the inaugural Charles River Marathon & Half Marathon Relay, and continues into the evening with the Starry Night 5K. 100% of the proceeds of these events benefit RACE Cancer Foundation and the Pediatric Brain Tumor Foundation.



Marathon:  $85 through May 31st, $100 through June 30th, $120 through August 31st, includes finisher’s medal, race shirt (thru 8/31) and post-race food & drink. Late entry $125, no shirt.

Half Marathon Relay: $85/team through May 31st, $100/team through June 30th, $120/team $99/team through August 31st, includes finisher’s medal and post-race food & drink. No entries after 8/31

Starry Night 5K: Registration is free, but please remember that our mission is to help kids with the deadliest form of childhood cancer so we encourage participants to raise at least $100.


5:30 am – Marathon & Half Marathon Relay registration opens
7:00 am – Marathon starts
7:10 am – Half Marathon Relay starts
9:30 am – Half Marathon Relay Awards Ceremony
10:30 am – Marathon Awards Ceremony – Overall Winners (top 3)
12:30pm – Marathon Awards Ceremony – Age Group Winners (top 3)
4:00 pm – Starry Night 5K registration opens
5:30pm – Starry Night 5K

Early number pick-up:
Miller's Ale House, Watertown - Friday 9/8 6-8pm

Race day number pick-up:
Herter Park 5:30am to 6:45am

Bag check:
As with all RACE events, there will be secure bag-check area (near start/finish line) for all participants.


Marathon: Top 3 male & female overall, and age group awards: 18-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60+. Overall awards are based on gun time. AG awards are based on chip (net) time. Trophies/medals can be picked up at our office but any other prizes may only be claimed at the awards ceremony. Due to permitting and volunteer constraints, the marathon will have time limit of 4 hours and 30 minutes for runners age 59 and younger. Runners 60 and older will have the time limit extended to 5 hours. 

Half Marathon Relay: Fastest female team, fastest male team, and fastest mixed team (at least one female and one male.) We’ve competed in enough relay races to recognize how difficult it can be to recruit enough people, let alone make sure they all show up on race day. For that reason, we’re doing things differently at the Charles River Half Marathon Relay. Teams can consist of three, four, or five runners per team, male or female. Each runner may run one, two, or three laps of the course, for a total of five laps per team. Any runner completing more than one lap must do so consecutively. So runner #1 on a 4-runner team cannot complete lap #1, then rest up and also complete lap #5. Team size and lap assignments must be finalized before the start of the race. Sorry, no 1 or 2 person entries in the half marathon. This is exclusively a team race.

BODYARMOR stations: There will be three BODYARMOR stations on the 2.62 mile loop: two along Greenough Boulevard, and one at the start/finish line. Each BODYARMOR station will have Sports Drink and Water.

Dogs and strollers: Sorry, while dogs and strollers are typically welcome in our events, we can’t allow either in this event.

Pacing: We acknowledge that recruiting friends to help pace you during a marathon is common practice, and especially tempting on a ten lap course. We’ve capped the field size for safety reasons due to narrow paths, especially along the bridges. We may have pace groups if there’s enough demand. If you want someone to pace you, they must be an official entrant or you risk disqualification. For more info, refer to USATF rule 144 (page 58.) We expect there will be a USATF official be at the event.

We need volunteers!
We are seeking volunteers to help with several aspects of the event. Please sign up to volunteer at

Public Transportation: Harvard Square MBTA Station is a 1.1 miles away. The 70, 70a, and 86 buses will drop you .1 mile away at Western Ave & Everett St. Plan your trip here: Google Trip Planner

Parking: There’s a large parking area (lot #4) at 1101 Soldiers Field Road next to the start/finish area.

Postponement, Cancellation and Refund Policy:
All events are held rain or shine. In the event of severely inclement weather, an event may be postponed to another date. No refunds will be issued due to conflicts with the postponement date. If RACE must cancel the event due to circumstances beyond our control, no refunds will be issued. Please remember that all proceeds go to charity.