| May 31 | Fueled by Fitness 5K | Beverly |
| May 31 | Exercise for Education 5K Run or Walk | Burlington |
| May 31 | Great Futures .... 5K Run & Walk | Boys & Girls Club Leominster |
| May 31 | Hollis School 5k Run/Walk | Braintree |
| May 31 | Friends of Holliston Trails 5 Miler | Holliston |
| May 31 | Hollliston 5k for Children Hospital (updated 6/1/2015) | Hollliston |
| May 31 | Mansfield Booster 5k Run & Walk | Mansfield |
| May 31 | Newton 10K | Newton |
| May 31 | Old Post Road Mile | East Walpole |
| May 31 | Race for the Recovery | Plymouth |
| May 31 | Scamper for the Camper 5K | Lynn |
| May 31 | Sean Corrigan Family Fun Run | Medfield |
| May 31 | St. Martin 5K | Newton |
| May 31 | Provincetown 10K | Provincetown |
| May 30 | 3rd annual Jungle Quest 5K | Barre |
| May 30 | Emerson Hospital 5k & Fun Run | Concord |
| May 30 | LANDSHARK SWIM & AQUATHLON (updated 5/30/2015) | AMESBURY |
| May 30 | LaceEm Up for Lexi 5K Run/Walk | Agawam |
| May 30 | 1st Annual Leominster Pop Warner 5k | Leominster |
| May 30 | Derick's Run For Diabetes 5K (updated 8/11/2015) | Dedham |
| May 30 | Elsie Frank 5k Run & 1.5m Walk | Dorchester |
| May 30 | Esplanade Dash 5K | Boston |
| May 30 | Foxboro Against Diabetes | Foxboro |
| May 30 | Run For The Fund | Marblehead |
| May 30 | 2015 New Balance Boston Twilight Meet #2 | Waltham |
| May 30 | CMASS WMASS D2 | Westfield |
| May 30 | CMS 52 Week 5K Series Race | Worcester |
| May 30 | Run for Our Hero 5k | Bourne |
| May 30 | Stride Along the Tide 5K | Nahant |
| May 30 | Nauset 5k Run/Walk | Nauset |
| May 30 | MIAA EMass Division 2 T&f; Championship | New Bedford |
| May 30 | SMILE Mass: BETTER TOGETHER 5K/10K | Sudbury |
| May 29 | Lynn Elementary 5th Grade Track Meet DAY 3 | Lynn |
| May 28 | Colonial Summer Series | Plymouth |
| May 28 | Holyoke Lodge of Elk's 5K Cross-Country Race | Holyoke |
| May 28 | Lynn Elementary 5th Grade Track Meet DAY 2 | Lynn |
| May 28 | SRR Thursday Night 4.06 mile run | Somerville |
| May 27 | Colonial Summer Series | Brockton |
| May 27 | Last Wednesday of The Month Full Stadium Tour | Boston |
| May 27 | ### The D5K ### | Danvers |
| May 27 | Lynn Elementary 5th Grade Track Meet DAY 1 | Lynn |
| May 27 | GSH Summer Sizzlers #7 (of 20) | Springfield |
| May 27 | Lynn Woods Summer Cross-Country | Lynn, MA |
| May 27 | NMC Devens 5k Race Series | Devens |
| May 27 | Mystic Runners Lake Q 5K | Wakefield |
| May 26 | Colonial Summer Series | Abington |
| May 26 | Bay State Conference TF Championships | Braintree HS, Braintree |
| May 26 | Patriot League TF Championship | Kingston |
| May 26 | XMas in May 5K | Lowell |
| May 26 | Northampton 5 km. x-c race | Northampton |
| May 25 | 38th Annual Swampscott Dory Run | Swampscott |
| May 25 | 5K Fun Run at Tewksbury Country Club | Tewksbury |
| May 25 | Christopher's 5k Run/Walk for Diabetes | West Bridgewater |
| May 25 | Colonial Road Runners Summer Fun Run (a.k.a. Dewpie's Dash) | Raynham |
| May 25 | Stanley Park 3 Mile Cross-Country Race | Westfield |
| May 24 | 7th. ANNUAL BERKLEY ATHLETIC ASSOCIATION 5K ROAD RACE | Berkley |
| May 24 | Boston's Run to Remember Half Marathon and 5 Miler | Boston |
| May 24 | Fins, Feet, Flippers 5k | Bourne |
| May 24 | Baldi River Run 5-Miler | Haverhill |
| May 24 | 35th The Great Hyannis Road Races | Hyannis |
| May 24 | Nantucket New School Memorial Day 5k | Nantucket |
| May 24 | Oak Bluffs Memorial Day 5K | Oak Bluffs |
| May 24 | Dlua Dash 5K | Provincetown |
| May 23 | 5th VA Memorial 5K | Florence |
| May 23 | 20th Annual Melody Miles 5K/5M Race | Hamilton |
| May 23 | 11th Last Chance to Qualify Meet | NDA Hingham |
| May 23 | 23rd Annual Wachusett Mountain Race | Princeton |
| May 23 | It's a Celebration 5K | West Boylston |
| May 23 | Joseph & Rose Gilio 5k Memorial 5k | Dover |
| May 23 | MVC Track & Field Championship Meet | Cawley Stadium - Haggerty Track - Lowell |
| May 23 | Midland Wachusett Division A Track & Field Championships | Crocker Field - Fitchburg |
| May 23 | South Coastal Conference TF Championship | Seekonk |
| May 23 | South Shore Principals Meet | Norwell |
| May 23 | Cape Ann League Championship Meet | West Newbury, Pentucket High |
| May 23 | Wachusett Mountain - 3 mile run to the top | Princeton |
| May 22 | Easstern Athletic Conference TF Championship | Attleboro |
| May 22 | DII Girls W.Mass Team Championships | Shelburne Falls |
| May 22 | New England Challenge Old Colony Marathon & Half | Springfield |
| May 21 | Dual Valley Conference League Championship Meet | Douglas |
| May 21 | Atlantic Coast League TF Championship | Yarmouth |
| May 21 | Holyoke Lodge of Elk's 8K Cross-Country Race | Holyoke |
| May 21 | Midland Wachusett Division C Track & Field Championships | Lunenburg HS - Lunenburg |
| May 21 | Colonial Summer Series | Plymouth |
| May 21 | Hockomock League Championship | Mansfield |
| May 21 | South Shore League Meet | Norwell |
| May 21 | SRR Thursday Night 4.06 mile run | Somerville |
| May 21 | Town TC / USATF-NE TF Mini-Meet | Charlestown HS, Charlestown |
| May 20 | Colonial Summer Series | Brockton |
| May 20 | ### The D5K ### | Danvers |
| May 20 | Dual County League TF Championship | Regis College-Weston |
| May 20 | Midland Wachusett Division B Track & Field Championships (updated 5/20/2015) | Nashoba Reg. HS - Bolton |
| May 20 | NMC Devens 5k Race Series | Devens |
| May 20 | SWCL League Championship Meet | Oxford |
| May 20 | GSH Summer Sizzlers #6 (of 20) | Springfield |
| May 20 | Greater Boston League Meet | Somerville |
| May 20 | Mystic Runners Lake Q 5K | Wakefield |
| May 19 | Colonial Summer Series | Abington |
| May 19 | Massachusetts Vocational School State Track & Field Championships | Blue Hills Regional Vocational HS - Canton |
| May 19 | Mid Wach D League meet | Littleton, MA |
| May 19 | Northampton 5 km. x-c race | Northampton |
| May 19 | Springfield City Championships | Springfield |
| May 19 | Middlesex 12 Track & FIeld Championships | Wellesley |
| May 19 | Still We Believe 5K | Lowell |
| May 19 | Winter is over 10K or 5K Fun Run | West Boylston |
| May 18 | Colonial Road Runners Summer Fun Run (a.k.a. Dewpie's Dash) | Raynham |
| May 18 | Stanley Park 3 Mile Cross-Country Race | Westfield |
| May 18 | Tri City Meet | Chicopee |
| May 17 | 14th Annual Harpoon Brewery 5 Miler | Boston |
| May 17 | Rafters College Towne Classik | Amherst |
| May 17 | Janis Bresnahan Run for Education 5K | Ayer |
| May 17 | BCC Dental Hygiene 5K | Fall River |
| May 17 | Golden Eagle 5K | Framingham |
| May 17 | Rocky Neck 5K | Gloucester |
| May 17 | 1st Annual Celebrate Kate 5K | Holyoke |
| May 17 | The Millennium 5k 4 Jake's Sake | Hudson |
| May 17 | Lowell Firefighters 5K | Lowell |
| May 17 | North Canal Classic | Lawrence |
| May 17 | Great Bear Run 5K & 1M | Needham |
| May 17 | Back to the 80's 5K | North Attleboro |
| May 17 | Hazelwood 5K For Women | New Bedford |
| May 17 | Dr. George Steele Relays | Northampton |
| May 17 | Lynn Woods Wolf Trot | Lynn |
| May 17 | NHS 5K Run/Walk for Grafton Special Education | North Grafton |
| May 17 | Piggy Trot | Osterville |
| May 17 | Route For Kids 5K | Jamaica Plain |
| May 17 | Run By Scituate Light 5K | Scituate |
| May 17 | Stow Conservation Trust's 17th Annual Run for the Woods | Stow |
| May 17 | 5K For The Fourth | Walpole |
| May 17 | Highland Hustle 5K (updated 5/17/2015) | Waltham |
| May 17 | JB's Keys 5K and 1 Mile Trail Run For Life | Westwood |
| May 17 | The Flying Shoes 5k | Lowell |
| May 17 | Jordan's Furniture Walk Run For Adoption 5K | Taunton |
| May 17 | LUK's 5th Annual Run, Walk, Stroll for Fun | Worcester |
| May 17 | Thoreau School 5k (updated 5/17/2015) | Concord |
| May 17 | TRAV'S TRAIL RUN | NEWBURYPORT |
| May 17 | Wild Goose Chase Age and Gender Graded Start 5k | Northampton |
| May 17 | YPD Blues 5k | Yarmouth |
| May 16 | 9th Annual Framingham Police Chase | Framingham |
| May 16 | Abington Police Community Partners 5k | Abington |
| May 16 | 7th Annual Hopedale Jr/Sr High School Blue Raider 5K Run | Hopedale |
| May 16 | 2015 New Balance Boston Twilight Meet #1 | Lowell |
| May 16 | 43rd Annual District E Girls Class Meet | Lunenburg |
| May 16 | Brooks Run For Education | Medford |
| May 16 | 54th Annual Fred Warren District E Boys Class Meet | Shrewsbury HS - Shrewsbury |
| May 16 | 13th Annual Gleason Family YMCA 5K Road Race | Wareham |
| May 16 | CMS 52 Week 5K Series Race | Worcester |
| May 16 | Gut Check Triathlon | Brewster |
| May 16 | Merrimack River Trail race - USATF NE trail champs | Andover |
| May 16 | St.John the Baptist School 3rd Annual "We are Family" 5K Walk/Run | Chicopee |
| May 16 | Deerfield Old Home Day 5K | Deerfield |
| May 16 | Healthy Hearts 5K | Holden |
| May 16 | Tim Paige Memorial 5k Run/Walk | Longmeadow |
| May 16 | Harvest 5K Walk/Run | Ludlow |
| May 16 | Malden Education Association 5K | Malden |
| May 16 | Caring for a Cure | Marshfield |
| May 16 | Dan Ford Road Races | Methuen |
| May 16 | Plympton's Twenty-Eighth Annual Strawberry Shortcake 10k | Plympton |
| May 16 | RABBIT RUN 10K | New Salem |
| May 16 | Reading Lions 5K Journey for Sight | Reading |
| May 16 | Somerset School 5k & 1 Mile Color Run | Somerset |
| May 16 | Central Mass Housing Alliance 5K | Worcester |
| May 15 | 7th Annual DMS 5k Run | Duxbury |
| May 15 | MG Quad Duals - Boys | Williamstown |
| May 15 | MG Quad Duals - Girls | Williamstown |
| May 15 | Northampton HS Last Chance Invitational | Northampton |
| May 14 | Colonial Athletic League Track & Fiels Championships | Foley Stadium - Worcester |
| May 14 | Colonial Summer Series | Plymouth |
| May 14 | Holyoke Lodge of Elk's 5K Cross-Country Race | Holyoke |
| May 14 | Marathon Sports Blues Run & Music Festival | Cambridge |
| May 14 | SRR Thursday Night 4.06 mile run | Somerville |
| May 13 | Colonial Road Runners | Brockton |
| May 13 | ### The D5K ### | Danvers |
| May 13 | GE Health Ahead Day 5k | Westborough |
| May 13 | GSH Summer Sizzlers #5 (of 20) | Springfield |
| May 13 | NMC Devens 5k Race Series | Devens |
| May 13 | Mystic Runners Lake Q 5K | Wakefield |
| May 12 | Colonial Summer Series | Abington |
| May 12 | Mayflower Athletic Conference Track & Field Championships | Blue Hills Regional Vocational HS - Canton |
| May 12 | Dual Valley Conference Middle School Championship | Douglas |
| May 12 | Mystery 5K | Lowell |
| May 12 | Northampton 5 km. x-c race | Northampton |
| May 11 | Colonial Summer Series - Dewpie's Dash | Raynham |
| May 11 | Stanley Park 3 Mile Cross Country Race | Westfield |
| May 10 | Energize the Earth 5k/10k | Beverly |
| May 10 | Tory Row 5k | Cambridge |
| May 10 | Mother's Day 5K | Haverhill |
| May 10 | Shape Up for Boston | Hingham |
| May 10 | Triathalon By The Sea | Marblehead |
| May 10 | Melrose Run for Women | Melrose |
| May 10 | Scituate Firefighters 5k Road Race & 1k Fun Run | Scituate |
| May 10 | Keep Springfield Beautiful 10K Road Race | Springfield |
| May 10 | Wellesley 1 miler for Hannah's fund | Wellesley |
| May 10 | WMass Mother's Day Half | Whately |
| May 09 | 4th Annual Angels Take Flight 5k Run/Walk | Longmeadow |
| May 09 | AEF Spring Sprint 5k | Amherst |
| May 09 | 61st Andover Boosters Meet | Andover |
| May 09 | Ashby Thin Blue Line 5K | Ashby |
| May 09 | Beach to Beach 5K | Marblehead |
| May 09 | 2nd Miles for Matt | Northboro |
| May 09 | CMS 52 Week 5K Series Race | Worcester |
| May 09 | "Colro Me Brilliant" 5K Run | Millbury |
| May 09 | 18th Annual Quincy Lions Club 5K Run/Walk for Sight | Quincy |
| May 09 | Boston Marine Corps Honor Run 5k | South Boston |
| May 09 | Chestnut Hill Reservoir 5K | Boston |
| May 09 | Fast Feet For Phreendom 5k | Brighton |
| May 09 | CCA River Run | Lowell |
| May 09 | Clinton Tribute | Clinton |
| May 09 | May Flowers 5K | Florence |
| May 09 | Merrimack River Trail Race - USATF NE trail champs | Andover |
| May 09 | NEICAAA Ne England Championships (Final) | Boston |
| May 09 | Crista McAuliffe 5K Run (updated 5/14/2015) | Framingham |
| May 09 | Pine Hill Little League 5K | Lynn |
| May 09 | Evelyn's Run for the Roses 5K | Salisbury |
| May 09 | 9th Annual NECC Walk/Run for Autism | Southboro |
| May 09 | Florence Adler 5k (updated 5/9/2015) | Wayland |
| May 09 | Run 4 Your Life | Falmouth |
| May 09 | Sacred Heart School 5K | Lynn |
| May 09 | Manomartian 3.4 Miler | Plymouth |
| May 09 | Innovation Academy Relay Invite (updated 5/9/2015) | Tyngsboro |
| May 09 | First Assembly Convoy Of Hope 5K | Worcester |
| May 08 | 2015 Sparten Invitational | East Longmeadow |
| May 08 | Backshore 5 Miler | Gloucester |
| May 08 | NEICAAA Day 2 Results | Boston |
| May 08 | MG, DHS, TAC, LX Quad Duals - Girls | Williamstown |
| May 07 | NEICAAA Championships - Day 1 | Boston |
| May 07 | Colonial Summer Series | Plymouth |
| May 07 | Holyoke Elk's 5K Cross-Country Race | Holyoke |
| May 07 | SRR Thursday Night 4.06 mile run | Somerville |
| May 06 | ### The D5K ### | Danvers |
| May 06 | 11th Annual 5K | Fall River |
| May 06 | Colonial Summer Series | Brockton |
| May 06 | GSH Summer Sizzlers #4 (of 20) | Springfield |
| May 06 | NMC Devens 5k Race Series | Devens |
| May 06 | Mystic Runners Lake Q 5K | Wakefield |
| May 05 | Colonial Summer Series | Abington MA |
| May 05 | MG vs. HV Dual | Adams |
| May 05 | Cinco Devine | Lowell |
| May 05 | Northampton 5 km. x-c race | Northampton |
| May 04 | Colonial Road Runners Summer Fun Run (a.k.a. Dewpie's Dash) | Raynham |
| May 04 | Stanley Park 3 Mile Cross Country Race | Westfield |
| May 03 | 3rd Annual Cory's Crusader's 5K Run | Blackstone |
| May 03 | Lungstrong 5K and 1.5 Mile Walk | Beverly |
| May 03 | HCC Cougar Crawl | Holyoke |
| May 03 | Liam Maguire's Irish Pub Almost Five Miler | Falmouth |
| May 03 | McCarthy 5k Fun Run | Framingham |
| May 03 | Potter Elementry School PTO 5K | Dartmouth |
| May 03 | Reid's Run AYA 5k | Lynnfield |
| May 03 | Step Up For Colleen 5K | Andover |
| May 03 | Lovin Life 5K Run/Walk | Mashpee |
| May 03 | Newburyport Spring Fever 5K | Newburyport |
| May 03 | Northborough 5 & 10K Road/Trail Run | Northborough |
| May 03 | RUN for a VET 5 Miler | Norwood |
| May 03 | 3rd Annual Coyote Family Challenge 5 mile & 2.5 mile races (updated 5/4/2015) | Plymouth |
| May 03 | Shrewsbury HS 5K in Memory of Jake Boudreau | Shrewsbury HS - Shrewsbury |
| May 03 | 15th Annual Officer Stewart Savage Memorial 5K | Wellesley |
| May 03 | 13th Annual Westboro Spring Fest 5K | Westborough |
| May 03 | 1st Annual I am Strong Foundation 5K | Westwood |
| May 03 | 4th Annual American International College Run For Education | Springfield |
| May 03 | Kick In For Kids 3.5 Mile Race | Woburn |
| May 03 | Walter Childs Marathon | Holyoke |
| May 03 | STEM Middle Academy 5K Run & 2 Mile Walk | Springfield |
| May 03 | Spring for the Trails Half Marathon (updated 5/5/2015) | Ipswich |
| May 03 | Wareham Oyster Festival 5K | Wareham |
| May 03 | Westford Road Races | Westford |
| May 02 | Brewster In Bloom | Brewster |
| May 02 | Falcon 5K | Fitchburg |
| May 02 | 26th Annual Grafton Gazebo 5 Mile Run | Grafton |
| May 02 | Running and Walking Well 5K | Beverly |
| May 02 | 5th Annual Franklin SNETT Road Race | Franklin |
| May 02 | Ascent 5k | Lakeville |
| May 02 | 5th Annual William Pasquantonio Memorial 5K | Randolph |
| May 02 | 39th Annual District E (Robert Duncan) Invitational Relay Meet | St. John's HS - Shrewsbury |
| May 02 | 6th Annual Sunset Twilight Meet | New Bedford |
| May 02 | CMS 52 Week 5K Series | Worcester |
| May 02 | Fast Chicks 5K | Hamilton |
| May 02 | MSTCA Freshman Sophomore Large Schools TF Invitational | Easton |
| May 02 | NECC Campus Classic 5K | Haverhill |
| May 02 | Healthy Melrose 5K and Fun Run | Melrose |
| May 02 | Ironstone Derby | Lowell |
| May 02 | District E Girls Relay Meet | Shrewsbury |
| May 02 | Glow in the Park 5k (updated 5/2/2015) | North Attleboro |
| May 02 | Music for Life Rock n' Run | Westminster |
| May 02 | Run To The Top | Provincetown |
| May 02 | NEC Freshmen-Sophomore Track Meet | Salem |
| May 02 | Tufts GSC 5K | Medford |
| May 02 | The 5th Annual Run For Their Future 5K (updated 5/3/2015) | Upton |
| May 02 | Thin Mint Sprint | Phillipston |
| May 01 | MG vs. PHS Dual | Williamstown |