In 41 days · Sun, Sep 6, 2026
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Sunday, September 6th, 2026
GRP4+W8X, Cheshire MA
Ultra
54–71°F · some rain risk
See last 10 years
On this date: rain 5 of the last 10 years
2025
56–76°F
rain
2024
44–72°F
dry
2023
64–81°F
dry
2022
57–60°F
rain
2021
56–71°F
rain
2020
55–70°F
dry
2019
48–65°F
dry
2018
66–82°F
rain
2017
55–61°F
rain
2016
62–76°F
dry
Best months to race in Massachusetts →
About this race
Event Overview
Welcome to Race Day XC. We are thrilled to introduce the Rotation Engineering Berkshire 40. The original Race Day XC marathon! The Berkshire 40 is located on a beautiful 1000 acre farm in the Berkshires. The race lap is a 10 mile loop of mostly single track, with a few sections of double track and a small stretch of private dirt road. No dangerous public roads, no multi use public trails, this closed course loop was 100% cut and built for the Berkshire 40 event.
Track Details
- Surface Quality: Premium packed Berkshire loam with tons of flow.
- Elevation: Although this property abuts Mt Greylock there aren't a ton of “climbs” that are notable.
- Trail History: We have built a lot of trails over the years but this stuff is some of our favorite of all time!
- GPS Files: We will share the final gps/strava file the week before the event.
Parking and Camping Fees
- Parking Fee: $20 Per Carload per Weekend
- Primitive Camping Fee: $25 Per Car Load (Good All Weekend)
- Staging: Staging/call ups for the Berkshire 40 will be determined by class and the order which you sign up.
- Feed Zone: The official feed zone/aid station will be in the parking area. You will pass through it at miles 10, 20 and 30.
Pro Purse
- Pro Men: $1000
- Pro Women: $1000
- Award Structure: 14 entries or less in class = top 3 are awarded.
- Award Structure: 15 entries or more in class = top 5 are awarded.
Weekend Schedule
SATURDAY
- Gates Open: 10:00 AM
- Open Practice: (Free) 11:00 AM- 5:00 PM
- Registration: On Site Registration or Pre Registration Check In: 11:00 AM to 5:00 PM
- Gates Close: 9:00 PM
SUNDAY
- Gates Open: 5 AM
- Registration: On Site Registration or Pre Registration Check In: Opens at 6:00 AM and Remains Open All Day
Race Heats
8 AM Race 1 (2-4 mile race)
- Boys 7-11
- Girls 7-11
- Boys 4-6
- Girls 4-6
9:00 AM Wave 1 (40 Mile Race)
- Pro Men Open
- Expert Men
- Expert Men 40+
- Expert Men 50+
- Single Speed Men
- Men 60+ Open
9:01 AM Wave 2 (40 Mile Race)
- Pro Women
- Expert Women
- Expert Women 45+
9:02 AM Wave 3 (40 Mile Race)
- Boys 15-18
- Sport Men
- Sport Men 40+
- Sport Men 50+
- Boys 12-14
- Novice Men
- Novice Men 40+
- Novice Men 50+
- Novice Men 70+ Open
9:03 AM Wave 4 (40 Mile Race)
- Girls 15-18
- Sport Women
- Sport Women 45+
- Girls 12-14
- Novice Women
- Novice Women 45+
- Women 60+ Open
Important Note
Finish time cut off- racers may not start their 4th and final lap any later than 4 pm.
Additional Information
For a look at the old 2025 Strava course profile click here.
Registration Link
Visit the race page for more information: Berkshire 40 Race Day XCM.
Course map
Train with a club
Run clubs near Cheshire to train with before race day.
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