Harwich 5K, 9:30 a.m. June 23, Harwich Port, http://raceroster.com/events/2018/17372/9th-annual-harwich-5k-road-race-run-and-walk
Chatham Harbor Run, 10K run, 5K walk, noon June 24, Monomoy Regional Middle School, 425 Crowell Road, Chatham, active.com.
Run Jack Run, fun run/walk, 1.2 miles, 9 a.m. July 4, Trotting Park Field, 20 Trotting Park Road, Falmouth, jackspact.org.
Phinney’s Harbor Day 5K, multi-terrain fun run, 8:30 a.m. July 7, Monument Beach Marina, Bourne, bournecommunityboating.org.
Paul E. White Memorial Road Race, 4.8 miles, July 7, Nye Park, North Falmouth, paulwhiteroadrace.org.
Wellfleet 5 Mile Road Race, 8:30 a.m. July 8, Mayo Beach, 101 Kendrick Ave., kids fun run 10 a.m., active.com.
Cotuit Firecracker 5K, 5:45 p.m. (youth) and 6 p.m. (5K) July 11, Lowell Park, 10 Lowell Ave., Cotuit, http://www.semcsports.com/
Race for Open Space, 5K run/2-mile walk, July 14, Milestone Cranberry Bog, 220 Milestone Road, Nantucket, nantucketconservation.org/activities/race-for-open-space.
Falmouth Sprint Triathlon, 7:30 a.m. July 15, Surf Drive Beach, Falmouth, neeevents.com/falmouth-triathlon.
AIDs Support Group of Cape Cod 5K Run/Walk, 8:30 a.m. July 15, Commercial St., Provincetown, asgcc.org.
Cape Cod 5K Run for the Osterville Library, 8 a.m. July 21, Osterville Village Library, 43 Wianno Ave., kids run 7:30 a.m., active.com.
Irish Pub Road Race, 5.25 miles, 10 a.m. Aug. 4, Irish Pub, 126 Main St, West Harwich, capecodsirishpub.com/road-race
Amity Island 5K, 9 a.m. Aug. 5, Farm Institute, Katama Farm, Edgartown, also kids run, lightboxreg.com.
Old Home Week 5K, 6 p.m. Aug. 9, Covell Beach, Craigville Beach Road, Centerville, also kids races, runreg.com/old-home-week-5kr.
Brew Run, 5.2 miles, 4 p.m. Aug. 11, The Woodshed, Route 6A, Brewster, active.com.
5K Run for Jabberwocky, 8:45 a.m. Aug. 18, The Farm Institute, 14 Aero Ave., Edgartown, runforjabberwocky.org.
Against the Tide, run, walk, swim and/or kayak, Aug. 18, Nickerson State Park, Brewster, mbcc.org/breast-cancer-prevention/against-the-tide
New Balance Falmouth Road Race, 7 miles, Aug. 19, Woods Hole, registration opens May 1-7 for Falmouth residents and residential tax payers, general registration opens May 8-17, falmouthroadrace.com.
Five-O 5K, 10:30 a.m. Sept. 1, Hog Island Brewery, 28 West Road, Orleans, opd5k.wordpress.com.
Dennis Chamber of Commerce Labor Day 5K Road Race, 10 a.m. Sept. 2, Johnny Kelley Park, South Dennis, dennischamber.com.
Hyannis Triathlon 2, sprint and Olympic, 7 and 7:30 a.m. Sept. 8, Craigville Beach, Craigville Beach Road, Centerville, neeevents.com/hyannis-sprint-triathlon.
Vineyard Triathlon, sprint and half ironman, Sept. 8, Oak Bluffs, vineyardtriathlon.com.
girlygirl P.A.R.T.S. 5K for Ovarian Cancer, 9 a.m. Sept. 15, Craigville Beach, Centerville, girlygirlparts.org.
5K Run/Walk for Heart Health, 9 a.m. Sept. 22, Nauset Regional High School, 100 Cable Road, Eastham, southshorerace.com.
Cape Cod MOVES "Y-Not" Trail Race and Expo, trail marathon (8 a.m.), half-marathon (8 a.m.), 10K (10 a.m.), 5K (1:30 p.m.), kids races (noon), Sept. 22, YMCA Camps Hayward and Burgess, Sandwich. capecodmoves.org.
Scusset Beach 5K Run/Walk and Family Fun Day, 9:30 a.m. Sept. 22, 20 Scusset Beach Road, Sagamore Beach, friendsofscussetbeach.org/?p=43.
Zooma Cape Cod, half marathon, relay and 10K, 7:30 a.m. Sept. 29, Sea Crest Beach Hotel, North Falmouth, zoomarun.com/race/cape-cod.
Harwich Cranberry Half Marathon & 10K, 11:30 a.m. and noon Sept. 30, baevents.com.
Gutcheck Triathlon/Duathlon, 9 a.m. Oct. 13, Nickerson State Park, Brewster, gutchecktriathlon.com.
Cape Cod Half Marathon, 7:30 a.m. Oct. 27, Falmouth Town Square, capecodmarathon.com/marathon-half.
Cape Cod Marathon & Relay, 8:30 a.m. Oct. 28, Main Street, Falmouth, capecodmarathon.com.
Clam Chowdah Challenge, run both Cape Cod Half Marathon and Cape Cod Marathon, Oct. 27-28, 39.3 miles, http://capecodmarathon.com/clam-chowdah-challenge