D-Y Dolphin Dash, 5K, 10 a.m. April 28 (kids run 9:30 a.m.), Dennis-Yarmouth Regional High School, Station Avenue, South Yarmouth, facebook.com/Dydolphindash.
Brewster in Bloom Run, 5K, 10 a.m. May 5, Brewster Inn and Chowder House, 1993 Main St., BrewsterRecreation.com.
Provincetown Run to the Top, 4 p.m. May 5, Provincetown Pilgrim Monument, 1 High Pole Hill, active.com.
Lovin’ Life 5K, 9 a.m. May 6, LIFE Inc., 175 Great Neck Road S., Mashpee, lifecapecod.org.
Run/Walk-A-Thon 10K, benefit for Habitat for Humanity of Cape Cod and Bourne Track Club, 1 p.m. May 6, Bourne High School track, 75 Waterhouse Road.
Cape Cod Beer Race to the Pint, 5K and 10K, 3 p.m. May 6, Cape Cod Beer, Phinney’s Lane, Hyannis, runreg.com/cape-cod-beer-race-to-the-pint.
Liam Maguire’s Irish Pub Almost 5 Miler, 9:30 a.m. May 6, Town Hall Square, Falmouth, pcbpubrun.com.
Feet, Fins & Flippers, 5K, 9 a.m. May 12, Cape Cod Canal (railroad bridge), Buzzards Bay Village Park, nmlc.org/ways-to-help/feet-fins-flippers-5k.
Pink & Green 5K, 9 a.m. May 12, 230 Herring Creek Road, Edgartown, runsignup.com.
Cape Cod Canal Mother’s Day 10K, 7:30 a.m. May 13, Bourne Scenic Park, 370 Scenic Highway, Buzzards Bay, mothersday10km.com.
Martha’s Vineyard Marathon & Half Marathon, May 19, marthasvineyardmarathon.com.
Gleason Family YMCA 5K, 9 a.m. May 19, Onset Village Pier, runreg.com/gleasonfamilyymca5k
Cape Abilities Harbor Walk Fun Run, 10 a.m. May 19, Hyannis Village Green, Main Street, capeabilitiesharborwalkfunrun.kintera.org.
Piggy Trot, 3.7 miles, 10 a.m. May 20, Dowses Beach, 348 East Bay Road, Osterville, also kids run, glennasfund.org/piggy-trot-2018.
YPD Blue 5K - Run for a Reason, May 20, Skipper Restaurant, South Shore Drive, South Yarmouth, ypdblue5k.com.
U.S. Coast Guard MWR Duathlon, run 2 , bike 12 , run 2 , 9 a.m. May 26, Mass Military Reservation, Otis Air Force Base, Bourne, racesonline.com/events/us-coast-guard-mwr-duathlon.
Great Hyannis Road Races, 5K, 10K, half marathon, 7:30 and 8:15 a.m., May 27, Hyannis Village Green, Main Street, greathyannisroadraces.com.
Oak Bluffs Memorial Day 5K, 10 a.m. May 27, fun run 9:30 a.m., hospiceofmv.org/calendar/?mc_id=1193, 508-693-0189
Diva Dash Ptown Cares 5K, 10 a.m. May 27, Harbor Hotel, 698 Commercial St., Provincetown, active.com.
Oyster Fest 5K, May 27, Wareham Fire Station, 273 Main St., g2racereg.webconnex.com/oyster5k18.
Wellfleet Sprint Triathlon, 8 a.m. June 2, Long Pond, Wellfleet, wellfleetsprinttriathlon.org.
Falmouth June Jog, 4-mile run/walk, 10K run, 8:30 a.m. June 3, Falmouth Heights Beach, Grand Avenue, runsignup.com.
Harvest Triathlon, sprint and Olympic distances, 7:30 a.m. June 9, 158 Tihonet Road Wareham, maxperformanceonline.com/harvesttri.
Beach and Back Half Marathon and 5K, 8 a.m. June 10, 64 Steeple St., Mashpee, events.racewire.com/beach-and-back.
Ocean to the Bay 5 Mile Run/Walk, 9 a.m. June 10, 27 Highland Light Road, North Truro, runreg.com.
Falmouth Flag Day 5K, 10 a.m. June 10, 263 Grand Ave., Falmouth, falmouthflagday5k.org.
Run/Walk for the Arts, 5K, 9 a.m. June 16, Cultural Center of Cape Cod, 307 Old Main St., South Yarmouth, active.com.
Mackenzie's 5K for Crohn's Disease, 9 a.m. June 16, Henry T. Wing School, 33 Water St., Sandwich, mackenzies5k.com.
Women Running Wild, 5K, 6 p.m. June 16, 99 W. Bay Road, Osterville, southshorerace.com.
Small Friends 5K, 8 a.m. June 17, Small Friends on Nantucket, 21 Nobadeer Farm Road, Nantucket, runsignup.com.
Lazy Lobster 5 Mile/10 Mile, 9 a.m. June 17, Wareham Crossing 2421 Cranberry Highway, southshorerace.com.
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.
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.
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.
5K Run/Walk for Heart Health, 9 a.m. Sept. 22, Nauset Regional High School, 100 Cable Road, Eastham, southshorerace.com.
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.