Oct. - Nov.
Habitat for Humanity 5K Your Way: Build a House in a Day, 1 p.m. Oct. 1, Veterans Park Beach, 480 Ocean St., Hyannis. http://www.firstgiving.com/27460/5k-your-way-build-a-house-in-a-day
Harwich Cranberry Half Marathon & 10K, 11:30 a.m. and noon Oct. 1, Monomoy Regional High School, 75 Oak St., Harwich, baevents.com.
Zooma Cape Cod Half Marathon and 10K, 7:30 a.m. Oct. 7, Seacrest Resort, North Falmouth, zoomarun.com/race/cape-cod.
Robert Stone Memorial 5K, 10 a.m. Oct. 7, The Sand Bar, Lighthouse Road, West Dennis, runreg.com/robert-stone-memorial-5k.
High Five 5K, 10 a.m. Oct. 7, Seafood Sam’s, Sandwich, highfive5k.com.
Sandwich Family Fall 5K, 9 a.m. Oct. 8, Forestdale School, 151 Route 130, active.com.
Yarmouth Seaside Festival 5K, 9 a.m. Oct. 8, 1175 Route 28, South Yarmouth (former Lawrence MacArthur Elementary School), runsignup.com.
Gut Check, sprint triathlon and duathlon, Oct. 14, Nickerson State Park, Route 6A, Brewster, gutchecktriathlon.com.
Miles for Meghan, 5K, 11 a.m. Oct. 14, Lowell Park, Cotuit, semcsports.com.
Screech at the Beach 5K, Oct. 21, Raw Bar at Popponesset Market Place, 252 Shore Drive, Mashpee, also fun run, runreg.com/screech-at-the-beach-5k.
Cape Cod Half Marathon, 7:30 a.m. Oct. 28, Falmouth Town Square, capecodmarathon.com/marathon-half.
Clam Chowdah Challenge, run both Cape Cod Half Marathon and Cape Cod Marathon, Oct. 28-29, capecodmarathon.com/clam-chowdah-challenge.
Cape Cod Marathon & Relay, 8:30 a.m. Oct. 29, Main Street (village green), Falmouth, capecodmarathon.com/marathon.
Dennis Police 5K Halloween Hustle, 11 a.m. Oct. 29, Mayflower Beach, Dennis, dennispolice5k.org.
Edaville Rail Run, 5-mile trail run, 2-mile fun run, 10 a.m. Nov. 4, South Carver, edavillerailrun.com.
Falmouth in the Fall, 7 miles, 1 p.m. Nov. 5, falmouthinthefall.org.
Mattapoisett 10 Mile & Vets 5K, 9 a.m. Nov. 11, Shipyard Park, Mattapoisett, racewire.com.
BEF, Run for Success, 5K and 10K, 10 a.m. Nov. 11, Centerville Elementary School, 658 Bay Lane, semcsports.com.
Chatham in the Fall, 10K, Nov. 19, Monomoy Regional Middle School, 425 Crowell Road, Chatham, capecodathleticclub.org.
Chatham Turkey Trot, 5K, 8 a.m. Nov. 23, parking lot behind Chatham Orpheum Theater, Main Street & Stage Harbor Road, chathamturkeytrot.com