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Mutts & Mayhem

Date
May 17, 2026
Distance
Small Dog (Up to 40 lbs) · Large Dog (40+ lbs)

From the Organizer

The Greenfield Recreation Department is excited for Mutts and Mayhem, an approximately 1.5 mile canine and companion obstacle course race! The race will feature fun and exciting challenges for both people and their furry friends and will leave spectators shouting “Oh My Dog”!

The event will be held at the Green River Swim Area on Sunday, May 17th beginning at 11:00am and will feature timed racing, local dog oriented vendors, prizes, and all around fun! Work your tail off with your dog as you traverse the river, jump over barriers, and go through hoops to compete for the quickest time. 

REGISTRATION

SMALL DOG (UP TO 40 LBS)

(Small Dog = up to 40 lbs) Conquer 20 obstacle stations along an approximate 1.5 mile course route with your leashed dog! Awards Ceremony to crown Champions. Reward your efforts with a post-race “rinse off”, enjoy a snack or treat, check out the vendors, take photos and celebrate your success!

Start Time: 11:00am

Price: $40.00 Pre-Registration by Friday, May 15th/ $50.00 Day of. 

LARGE DOG (40+LBS)

(Large Dog = 40+ lbs) - Conquer 20 obstacle stations along an approximate 1.5 mile course route with your leashed dog! Awards Ceremony to crown Champions. Reward your efforts with a post-race “rinse off”, enjoy a snack or treat, check out the vendors, take photos and celebrate your success! 

Start Time: Following Small Dog Start

Price: $40.00 Pre-Registration by Friday, May 15th/ $50.00 Day of. 

 

RULES & SAFETY

  1. All dogs must be at least 1 year old on race day.
  2. Human participants must be at least 10 years old and each participant may only run 1 dog in the race.
  3. Your dog must be licensed, up to date on all vaccinations, and have no health complications that would prevent them from competing. *Vet records and dog licenses will not be required at the registration/ check-in table; however, we recommend having a photo of them on your phone in case an issue arises.
  4. All dogs MUST be kept on a leash at ALL times, including before and after the race. Please use a standard leash. No retractable leashes allowed. A harness rather than a collar is recommended!
  5. Dogs must be comfortable, confident, and secure around other dogs and people.
  6. You will have two chances to complete an obstacle. If you or your dog cannot complete an obstacle after your first attempt, you can go to the end of a line and try again or step to the side of the station and complete the designated penalty activity to continue. After a failed second attempt, you may move on to the next obstacle.
  7. If after attempting an obstacle and your dog refuses, NEVER force your dog to complete it. Instead, participants can opt to complete the designated penalty activity as a time penalty.
  8. Participants must clean up after their dogs. Waste receptacles will be located at obstacles for poop bag disposal.
     

Distances & Pricing

Small Dog (Up to 40 lbs)11 AMRegister →
Large Dog (40+ lbs)11 AMRegister →

Race Location

About This Sport

From Endurance Grid's Founder

Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.

With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.

Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.

Running

From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.

Frequently Asked Questions (FAQs)

What is the Mutts & Mayhem?
Mutts & Mayhem is a running event held in Greenfield, MA. Learn more about the different endurance sports here.
When and where is the Mutts & Mayhem?
Sunday, May 17, 2026 in Greenfield, MA at 1 Nash Mill Road, Greenfield, MA. Check the official event page for exact start times and wave schedules.
How do I register for the Mutts & Mayhem?
Registration is handled through their official registration page. Confirm pricing, distances available, and sign up there.

Mutts & Mayhem

May 17, 2026

Register →