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New England Green River Marathon

Greenfield, MA
Sunday, August 23, 2026


  4.8 Stars from 5 Reviews

Course Description

The New England Green River Marathon is a fast, net-downhill race that crosses from Vermont to Massachusetts. A USATF-certified and Boston Marathon qualifying course, it features a total elevation drop of 2,100 feet balanced by 650 feet of uphill climbing.

The point-to-point course begins in Vermont at the Potash Hill campus in Marlboro and runs south into Massachusetts, concluding at Greenfield Community College. The first 21 miles are mostly run on unpaved, packed dirt and gravel country roads running parallel to the Green River, providing a forgiving surface for the joints. The final five miles of the course transition entirely to fully paved asphalt city roads as the route enters the municipal limits of Greenfield.

The course starts with a sharp, immediate drop right in the first mile. The majority of the course flows through a rolling, naturally shaded river forest canopy, where runners pass regional landmarks including a historic 1870s covered bridge. The primary tactical tests arrive around miles 17 and 20, where runners must conquer three demanding hills that test fatigued legs. The final five miles leave the forest shade behind, presenting an exposed, unshaded run toward the college finish line.

A successful pacing strategy depends on early restraint during the opening downhill miles and saving energy for the back half of the race. Runners who treat the dirt roads as a sprint often find their pacing plans ruined by the distinct hills starting at mile 17. This boutique, small-scale event perfectly suits Boston Marathon aspirants and those who prefer quiet nature trails and smaller fields over standard city road races.






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Race Information

Race Dates

2027: TBD
2026: Sunday, August 23, 2026

Course Information

Profile: Downhill
Type: Point to Point
Surface: Mostly on Trails

Boston Qualifier?: Yes
World Marathon Major Qualifier?: No


Race Day Weather

Mean Temp.: 65°F (18°C)
Average High: 79°F (26°C)
Average Low: 52° F (11°C)





PR Score & Course Score

PR Score: 99.50
Course Score: 101.71


Race Size

2026: 318 Finishers
2025: 348 Finishers
2024: 325 Finishers
2023: 340 Finishers
2022: 325 Finishers
2021: 278 Finishers

BQ Percentages

2026: 13.2%
2025: 11.8%
2024: 17.5%
2023: 20.3%
2022: 21.5%
2021: 20.5%


Miscellaneous Information

Pace Groups?: No

Weather Averages for Last 8 Years


Race Day Temperatures

High: 78°F  (26°C)
Low: 58°F  (14°C)

Race Start Conditions

60°F  (16°C)
Humidity: 93%

Partially cloudy
N 3 mph

PR Score

98.3

Course Score

101.71









New England Green River Marathon Rankings, Course Speed & Boston Qualifier Statistics

The New England Green River Marathon was the 187th largest marathon in the U.S. in 2025 based on the number of finishers. In 2024, it ranked as the 176th largest marathon in the U.S..

In 2026, 13.2% of New England Green River Marathon finishers have achieved Boston Marathon qualifying times. In 2025, 11.8% of finishers qualified for the Boston Marathon.

Based on its percentage of Boston Qualifiers (BQs), the New England Green River Marathon ranked 112th among marathons in the U.S. in 2025 and currently ranks 72nd so far in 2026. In Massachusetts, it ranked 8th in 2025 and 6th so far in 2026. These rankings provide a useful benchmark for comparing the New England Green River Marathon with other Boston Marathon qualifying races.


The New England Green River Marathon has a Course Score of 101.71, ranking it as the 20th fastest marathon course in the U.S. and the 1st fastest marathon course in Massachusetts.

Typical race-time temperature and humidity levels are above the ideal range for optimal marathon performance. Combined with the course profile, this gives the New England Green River Marathon a PR Score of 99.50. The PR Score ranks the New England Green River Marathon as the 73rd best marathon in the U.S. for running a Personal Record (PR) and the 2nd best marathon for a PR in Massachusetts.

Together, these rankings provide a quick snapshot of how the New England Green River Marathon compares with other marathons in the U.S. and Massachusetts for speed, PR potential, Boston Marathon qualifying success, and overall participation.

New England Green River Marathon Marathon Rankings Summary
Course Speed20th fastest marathon course in the U.S.
Ranked 1st fastest marathon course in Massachusetts
Top 5% Nationally#1 of 13 in Massachusetts
PR Potential73rd best marathon for a Personal Record in the U.S.
Ranked 2nd best marathon for a PR in Massachusetts
Top 16% Nationally#2 of 13 in Massachusetts
Boston Qualifier Rate112th highest BQ percentage in the U.S.
Ranked 8th highest BQ percentage in Massachusetts
Based on 2025 Boston Marathon qualifying results
Top 24% Nationally#8 of 11 in Massachusetts
Race Size187th largest marathon in the U.S.
Ranked 5th largest marathon in Massachusetts
Based on 2025 results
Top 32% Nationally#5 of 11 in Massachusetts

Learn more about PR Scores and Course Scores on the FAQ page.




Elevation Chart


Max Elevation: 1655 feet (504m)
Min Elevation: 175 feet (53m)

Elevation Gain: 650 feet (198m)
Elevation Loss: 2115 feet (644m)


New

Course updated 06/11/2026





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Race Reviews


4.8
Based on 5 reviews
Write Your Own Review

Gorgeous, fast course!

Full Review:

Big PR day! Course is definitely fast AF. Couple hills at the end (one of which they call Heartbreak Hill) definitely beat me up a bit that late in the race, but overall you're cruising downhill or poppin over slow-rollers throughout most of it. The beginning is STEEP. I took others' advice and didn't push it on those descents which worked out well considering I passed ppl at the end who were complaining about shot quads. Stunning course, almost all in the shade (except the last few miles on pavement which was a grind... but always is post 22mi in a marathon). 100% recommend this race - either for a PR or just for enjoying the scenery.

Race Tips:

See above - don't overdue it on those first steep downhills and bake in slower miles for the last couple hills.

Travel/Logistics Tips:

Phenomenal race and support!

Downhill is no joke

Full Review:

Great marathon, well organized. Nice and small and quiet. Good logistics at the beginning and end. Peaceful terrain.

Race Tips:

Not sure how you can prepare for the beginning of this marathon. It's a very sharp downhill and takes a toll on the quads trying to hold up. Just be aware that it starts with a fairly significant downhill that is not kind. When you do reach an uphill, it's a welcome one to have other muscles do the work.

Travel/Logistics Tips:

Very few porta potties on the course. Water stops are frequent enough, but you should plan on bringing water for in between those stops.

Great Course for Marathon Husbands (and Wives)

Full Review:

This is a fantastic course for spectators -- one of the best. I have taken the kids to watch their mom twice now. The scenery is spectacular, and we have enjoyed our trips immensely.

Race Tips:

As a vehicle-borne spectator, it is best to do a little advanced route planning as the cell service is spotty and the roads sparse. Finding our way to the next vantage point has been one of the best (and most scenic) parts of each trip, but it is also a little nerve wracking, since it is possible to drive down tiny unpaved roads with no certainty of one's direction.

Travel/Logistics Tips:

Arrive a bit early to check out the university / scenery. Pack your own coffee and food.

Gorgeous course, best volunteers, and an amazing event!

Full Review:

Gorgeous course, best volunteers, and an amazing event! Nice early start to beat the heat. Beautiful views of the river. One of the best!

Race Tips:

Be prepared for the downhills! This is not an easy course. Your quads will feel it if you haven't trained on downhills, plus a few big up-hills in the 2nd half. Course description on their website is perfect. Not many spectators due to the nature of the course, so you can have time where you are running alone. But lots of water stops, and an awesome post race event!

Travel/Logistics Tips:

Tons of parking at the finish, and shuttles to the start. Just be prepared that you have to be ready to get on the shuttle at 5am!! But super easy process. No stress!

Beautiful, shady, quiet, and so much fun

Full Review:

The people who organized this race on did an amazing job. They put so much time and effort into the race as a whole, as well as the website and contacting the runners and keeping us up to date in the months and weeks leading up to the big day.

The website has a section that describes the course, and the amount of detail is unreal. It goes into incredible detail about almost every mile of the course, including describing a sharp downhill section, when and where the path changes from packed dirt and gravel to pavement and vise-versa, where the hills are, how much of an incline each hill has, where to keep a close eye out for traffic, etc. It also has a wide variety of course maps, which I was really happy about. It’s a net-downhill race, which was big draw, but they made sure to mention that runners should take the three main hills very seriously (they were not kidding). I felt *extremely* prepared for this race just from reading the course description. The first 20 miles are shady and cool, as they run along a little road next to the Green River. The final 5 miles are a brutal dash to the finish on hot, unshaded pavement. I’m all fairness, the website did warn us about it, but dang are those last five miles hot and miserable!

One of the best things NEGRM did, which I have never seen before, was to name the aid stations in alphabetical order. Each station was named after a local animal, which was relevant to the course purpose and very cool. The names made it really easy to figure out how many stations were left during the run, as long as you could remember that the last station was K for Kestrel. This was SO HELPFUL. I wish every single race did this.

The volunteers at each station were so enthusiastic and kind and helpful, and the woman at the end handing out the medals was the happiest and most enthusiastic person in the entire world and she made me feel so proud to be crossing the finish that I wanted to cry a little. Every single person involved in this race was so clearly excited about it and heavily invested in making sure it was a wonderful experience, and they were 100% successful. I will absolutely be back to run this race again. I'm also glad that they want to keep this race pretty small (2018 was capped at 350 runners). If you want to run this course, keep an eagle eye out for sign ups because they will go FAST.

Race Tips:

When they say there are legit hills, despite this being a net downhill course, they are not kidding. There are three major hills and they are not fun.

Travel/Logistics Tips:

There is a big section on the race website that goes into detail about this. If you're interested, I would check there.