Found 138 races near Merrimack County, NH

🎉 Join Your Local Running Community!

Connect with runners, find training partners, and celebrate every finish together

SEP
20

Nashua, NH
• 41.0 miles
$25 -$45
Date: September 20, 2026 Location: Mine Falls, Nashua NH Start Time: 9AM Description:  Run a quiet 5K through the beautiful Mine Falls in Nashua to help support Operation Delta Dog!  Operation...
5K
16
SEP
20

Portsmouth, NH
• 23.8 miles
$30 -$40
Seacoast Cancer 5K - Support a great cause while running in Portsmouth
1m 5K
751
SEP
20

Lebanon, ME
• 36.1 miles
$120
Grab a partner and take on the Timberclaw Partner Relay—a fast-paced, 3-hour endurance challenge built around teamwork, grit, and consistency. Teams of two will alternate 2-mile loops across a...
10
SEP
26

Newport, NH
• 24.8 miles
$25 -$30
🎶 Race Information🏃  🕺Get ready to lace up your running shoes and travel through time at the Through the Decades 5K! This fun and festive 5K combines paved road running with the beauty of the...
5K
1
SEP
27

Portsmouth, NH
• 49.8 miles
$30 -$250
Celebrate the incredible journey of strength and resilience as we mark the 18th anniversary of our awesome 5K event, dedicated to breast cancer patients. Together, we honor the amazing spirit of...
5K
4
SEP
27

Tewksbury, MA
• 54.8 miles
$17 -$40
Join us on Sunday, September 27, 2026, at 9:00 AM at Tewksbury High School (320 Pleasant Street, Tewksbury, MA 01876) for a 5K run/walk supporting Into Action Recovery Inc. Registration opens at...
5K
4
SEP
27

Newburyport, MA
• 54.1 miles
$35 -$40
With the gracious assistance and support of the Winners Circle Running Club, we invite you to enjoy a 5K run or family-friendly stroll through scenic Newburyport, starting and ending at Michael's...
5K
10
SEP
27

Newburyport, MA
• 40.3 miles
$39 -$109
Celebrate Fall in beautiful Newburyport, MA with a scenic Half Marathon & 5K that start and finish at the RiverWalk Brewery. Enjoy a cold beer in the Beer Garden to celebrate your finish. Once...
5K Half Marathon
44
SEP
27

Nashua, NH
• 40.0 miles
$25 -$40
Local Steps for Lasting Impact Run or walk in support of compassionate care close to home!  On Sunday, September 27, Southern New Hampshire Health invites you to be part of our first‑ever 5K...
5K
7
SEP
27

Brownsville, VT
• 40.7 miles
$175 -$400
33 Years of Supporting Vermont Adaptive The Vermont 50 is an annual race held during the last weekend of September at Ascutney Outdoors in  West Windsor, Vermont. All benefits go to Vermont...
50K 50m
68
OCT
3

New Ipswich, NH
• 46.0 miles
$25
All proceeds raised will benefit Society of St. Vincent de Paul to help feed local families in need. Runners who register at least 2 weeks early will receive a premium long sleeve wicking shirt....
5K
56
OCT
3

Tewksbury, MA
• 54.8 miles
$40 -$50
 Current price reflects an Early Bird Discount - Price will increase to $45 on July 1st   This 1st annual 5K Fun(d) Run is a community event sponsored by TMHS Classes of '27, '28 and '29.    Our...
4
OCT
3

Manchester, NH
• 25.9 miles
$44 -$59
The fall tradition is coming back to New England! Get ready to tackle the 5K (3.1 miles) in downtown Manchester this October. Open to all ages and abilities, runners and walkers will enjoy a...
5K
1
OCT
4

Rye Beach, NH
• 52.4 miles
$20 -$35
Join us for the Second Annual New England Ostomy 5k Fun Run and Walk on Sunday, October 4, 2026 in celebration of Ostomy Awareness Day! Celebrate with us the beautiful Wallis Sands State Park in...
5K
11
OCT
4

Keene, NH
• 41.5 miles
$35 -$40
The Keene Family YMCA’s Fall Foliage Trail Races offer runners a great opportunity to explore some of Keene’s best trails, while supporting the charitable work of the Y. This unique race starts...
5K 10K
43
OCT
4

Lowell, MA
• 50.5 miles
$30 -$35
5k charity road race benefiting Team Micky Ward charities. Race day registration and post race party will be held at the Blue Shamrock 105 Market st Lowell MA 01852. All runners will head over to...
5K
15
OCT
4

Nottingham, NH
• 32.5 miles
$30 -$50
The Purple Hope 5K was created in loving memory of Lenore O’Hanlon, who bravely battled pancreatic cancer for 18 months. Though her fight came to an end, her strength and spirit live on through...
5K
9
OCT
4

Madbury, NH
• 38.9 miles
$15 -$35
Trot In The Trees 2026:Registration is Now Open!! The Oyster River Youth Association, Durham Parks & Recreation and Madbury Recreation Commission have teamed up again for the 6th Trot in the...
5K
5
OCT
10

Milford, NH
• 33.9 miles
$10 -$40
Get ready to lace up your sneakers and join the excitement at the Boys & Girls Club of Souhegan Valley's Pumpkin Festival 5K & Kids Fun Run! Whether you're a seasoned runner or just in it for the...
1m 5K
1
OCT
10

Dunstable, MA
• 46.8 miles
$40
Dunstable Recreation Committee Presents:  Dunstable Oktoberfest 5K 2026 Saturday October 10th, 2026 Check in starts 10:00 A.M.   Race Begins at 11:00 AM Begins and ends at Larter Field, 80 Groton...
5K