Welcome to the Rotation Engineering Berkshire 40, an unforgettable race day experience on picturesque farmland. Situated across 1000 acres within the serene Berkshires, this marathon offers runners a thrilling journey through carefully crafted single-track trails and sections of double track. The course is a 10-mile loop that ensures a mix of varied terrain, with minimal climbs but ample opportunities for flow and technical challenges. The trail surface is premium packed Berkshire loam, providing an exhilarating ride that showcases the property's natural beauty to its fullest extent. Although the race abuts Mt Greylock, you won't find steep ascents; instead, focus on navigating through sections of single-track with ease. The event organizers take pride in their creation, ensuring a closed course loop exclusively for this marathon. Parking and camping options are available at $20 per carload over the weekend or $25 for primitive camping (valid all weekend). Staging and call-ups will be determined by class based on your sign-up order. The race features an official feed zone/aid station located in the parking area, where you can find refreshments at mile 10, 20, and 30. Pro purses of $1000 each are up for grabs for both men's and women's categories. For those looking to test their skills over a shorter distance, there will be a 4-mile race starting from 8 AM on Saturday. Categories include Boys 7-11, Girls 7-11, Boys 4-6, and Girls 4-6. The main event kicks off at 9 AM with four waves of the 40-mile marathon. Pro Men Open, Expert Men, Expert Men 40+, and Expert Men 50+ lead the pack followed by Single Speed Men and Men 60+ Open in Wave 1. Waves 2 through 4 feature Pro Women, Expert Women, Expert Women 45+, Boys 15-18, Sport Men, Sport Men 40+, Sport Men 50+, Boys 12-14, Novice Men, Novice Men 40+, Novice Men 50+, and Novice Men 70+ Open. Girls 15-18, Sport Women, Sport Women 45+, Girls 12-14, Novice Women, Novice Women 45+, and Women 60+ Open make up Wave 3. Participants in the marathon must complete their fourth lap no later than 4 PM on Sunday. Gates open at 5 AM for race day registration starting from 6 AM until the event concludes. Experience a weekend filled with adventure, camaraderie, and breathtaking scenery as you take part in this unique running experience.
Races Offered
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Boys 12-14
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Boys 15-18
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Men 70+ Open
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Novice Men
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Novice Men 40+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Novice Men 50+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Sport Men
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Sport Men 40+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Men, Sport Men, Youth Boys 12-18, Men 70+ Open - Sport Men 50+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Women, Sport Women, Girls 12-18, Women 70+ Open - Girls 12-14
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Women, Sport Women, Girls 12-18, Women 70+ Open - Girls 15-18
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Women, Sport Women, Girls 12-18, Women 70+ Open - Novice Women
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Women, Sport Women, Girls 12-18, Women 70+ Open - Novice Women 45+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Women, Sport Women, Girls 12-18, Women 70+ Open - Sport Women
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Women, Sport Women, Girls 12-18, Women 70+ Open - Sport Women 45+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Novice Women, Sport Women, Girls 12-18, Women 70+ Open - Women 60+ Open
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Men, Expert Men, Single Speed Men Open, Men 60+ Open - Expert Men
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Men, Expert Men, Single Speed Men Open, Men 60+ Open - Expert Men 40+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Men, Expert Men, Single Speed Men Open, Men 60+ Open - Expert Men 50+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Men, Expert Men, Single Speed Men Open, Men 60+ Open - Men 60+ Open
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Men, Expert Men, Single Speed Men Open, Men 60+ Open - Pro Men Open
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Men, Expert Men, Single Speed Men Open, Men 60+ Open - Single Speed Men Open
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Women, Expert Women, Single Speed Women Open, Women 60+ Open, Non Binary Open - Expert Women
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Women, Expert Women, Single Speed Women Open, Women 60+ Open, Non Binary Open - Expert Women 45+
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Pro Women, Expert Women, Single Speed Women Open, Women 60+ Open, Non Binary Open - Pro Women Open
Sep 06, 2026
straighten
Distance —
64.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$140.00
Youth Boys and Girls 4-11 - Youth Boys 4-6
Sep 06, 2026
straighten
Distance —
6.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$50.00
Youth Boys and Girls 4-11 - Youth Boys 7-11
Sep 06, 2026
straighten
Distance —
6.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$50.00
Youth Boys and Girls 4-11 - Youth Girls 6-9
Sep 06, 2026
straighten
Distance —
6.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$50.00
Youth Boys and Girls 4-11 - Youth Girls 7-11
Sep 06, 2026
straighten
Distance —
6.4K
terrain
Type —
Cycling
timer
18 days remaining
sell
$50.00
Weather History
These values represent the 3-year monthly averages for September in Cheshire.
thermostatTemperature
11.7° / 21.6°
wb_sunnyFeels like
10.6° / 20.9°
light_mode
Avg sunshine hours
9h 19m
water_drop
Avg rainfall
2.9 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
7.9 km/h (Light breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.0)
humidity_mid
Humidity
79.7%
wb_twilight
Sunrise
06:33
nightlight
Sunset
19:01
About Cheshire
Learn more about the host city, Cheshire.
Cheshire is a town in the Berkshires of Massachusetts. Portions of the town are on Mount Greylock and must be accessed from adjacent towns if traveling by vehicle. Cheshire has a small population; restaurant and lodging options are limited, but the town has extensive offerings for outdoor activities including hiking, cycling, boating, swimming, fishing, and hunting.
