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2026 Backyard Ultra

calendar_today 26 Sep, 2026

directions_run Running

language Official Website

sell $35.00

2026 Backyard Ultra

About the Event

Get ready to run until you drop, because on September 26th at Leominster State Forest we're hosting our 2nd annual Backyard Ultra! 

What does that mean?

Every hour, runners must complete a 4.167 mile loop - a yard - until they can't. That's it! If you don't make it to the starting line at the turn of the hour, you're out! Once a final runner runs a yard alone, the race is complete.

Whether you want to push yourself to your limits, mingle with new runners, or just want an excuse to be in the woods for a Saturday, you'll be in the right place.

We will provide some light snacks, drinks(water, Gatorade, etc.), a porta potty, and a canopy (or two) for shade. Suggestions on what to bring include camping chairs, picnic blankets, your own food and water, a hat, first aid supplies, and a change of clothes. Additionally, you must wear blaze orange during the race, as we are in hunting season and the neighboring property is hosting a hunting event during a portion of our race.

The race begins at 10:00 AM so please arrive between 9-9:30 to allow for check-in and prep. Entry Fee: $35. If you sign up before August 31st, you'll also get a t-shirt!

Races Offered

2026 Backyard Ultra Marathon

Sep 26, 2026

straighten

Distance — 42.2K

terrain

Type — Running

timer

10:00

sell

$35.00

Weather History

These values represent the 3-year monthly averages for September in Princeton.

thermostat Temperature
13.1° / 21.6°
wb_sunny Feels like
11.5° / 20.5°
light_mode Avg sunshine hours
8h 54m
water_drop Avg rainfall
3.3 mm
ac_unit Avg snowfall
air Avg wind speed
10.5 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
77.0%
wb_twilight Sunrise
06:28
nightlight Sunset
18:55

About Princeton

Learn more about the host city, Princeton.

Scenic view of

Princeton is a town in Massachusetts.

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Hotels & Places to Stay

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