Monsters Run The River | Fun Run Atlas | RMN
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Monday, October 5, 2026 · New Jersey

Monday, October 5, 2026 · New Jersey

Monsters Run The River

Billed as southern Maine's spookiest race, with a separate Canine 5K so costumed runners can bring costumed dogs along the Presumpscot River.

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Fun Run Atlas · Maine

Holiday and seasonal · Westbrook, ME

Monsters Run The River is a holiday fun run in Westbrook, Maine, with a verified date of October 25, 2026.

ConfirmedFamily friendlyDogs welcomeCostumes encouraged
When
Sun, Oct 25, 2026
Start 8:30 AM
Late October Sunday
Where
Riverbank Park
Westbrook, ME · Cumberland
Directions
Entry
Register
Official siteDirectionsAdd to calendar

What to expect

  • costumes encouraged
  • costume prizes
  • dogs welcome
  • canine 5K
  • riverfront
  • kids dash
  • chip timed

2026 Confirmed

Sunday, October 25, 2026

  • Sun, Oct 25, 2026

Checked Sun, Oct 4, 2026 against the official source.

2027 Projected

Date TBA

About the run

A Halloween-season 5K, Canine 5K and free kids' 1K through downtown Westbrook, starting and finishing in Riverbank Park.

The run

Distances
5K, Canine 5K, 1K kids fun run
Occasion
Halloween
Season
Fall

Nearby

Sources

Details checked against the race’s own pages on Sun, Oct 4, 2026.