2021 Somerville 5K Race Directory
Davis Square is the most popular location for Somerville 5K race events. Assembly Row and the DCR Blessing of the Bay boat house on The Mystic River ARE also popular locations for 5K races in Somerville.
Somerville 5K races range in size from a few hundred to a few thousand runners. Some are party events geared towards a younger crowd, and some are family oriented and great to bring your kids to.
The list of Somerville 5K races changes yearly. 2020 saw many races cancelled due to COVID-19. Hopefully with the vaccines you will be able to run Somerville 5K race in person in 2021.
Most of these races have not updated their information for 2021 yet, so be sure to check back for updates.
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TBD May | 10:00 AM | Sunday
This race was postponed and then cancelled in 2020. Currently the race web site has not been updated.
The Mary O’Brien Memorial Run 5K will take place at Baxter Park at Assembly Row Somerville.
Proceeds from this Somerville 5K benefit the Claudia Adams Barr Program in Innovative Basic Cancer Research at Dana-Farber Cancer Institute. Over 16 years they have raised over $220,000.
Due to construction of the Green Line Extension the race moved to Assembly Row and will be run along the pathways of the Mystic River Reservation.
The first 300 runners to register get a commemorative tank top. The post race party features Redbone’s BBQ and Harpoon!
Registration was $30 for the 5K and $5 for the kids 0.1 mile run.
9-16 May | Anytime
2021 will be the 25th year for this 5K and paddling event and it will be a virtual event this year as well.
For 2021 you can run the 5k course and/or paddle a 9 mile distance.
Complete both races and you are eligible for the “Iron Herring Award”.
They provide course maps for the run and paddle, but since it is virtual I imagine that you can run the 5K anywhere.
2021 registration is only $10 and that is good for both the 5K and 9-mile paddle.
The Mystic is a great river to paddle on as there is very little powerboat traffic.
The race is a fundraiser for the Mystic River Watershed Association.
The paddle event takes place at the DCR Blessing of the Bay Boathouse in Somerville.
$10 for that much fun and racing is hard to beat!
Through May 31st
This 5K will be a Virtual Fitness challenge for 2021.
Registration is $45 and is open.
The event is a fundraiser for the MSPCA and Angell Memorial. 2020 was the fifth year for this Somerville 5K and their first virtual race.
Even with the challenges of 2020, they raised over $110,000.
This year the more money you raise the more chances you receive to enter into their drawing for a Peloton bike!
How cool is that?
TBD August | 9:00 AM
This race was cancelled in 2020 and no information is available for the 2021 race.
This is a Somerville Road Runners production at Assembly Square. In addition to the 5K, there is a “Fast Mile” race that requires all runners to finish the race in 10 minutes or less.
For kids 9 and under there is a Kid’s 1/8th mile Fun Run and all participants will receive a medal.
The wheelchair 5K begins at 9:25 and the 5K begins at 9:30.
Registration was: $32 through July 31 then $37 and $40 day of. Fast Mile is $20 or $25 day of.
Add the Fast Mile to your 5K registration for just $5.00! Day-of registration for the combo is $50.00.
This event, which began in 2013, has raised more than $27,500 for the East Somerville Main Streets organization, Somerville TrackPAC and Somerville Auxiliary Police.
TBD March | 11:00 AM | Sunday
The race was cancelled in 2019 due to construction and cancelled in 2020 and 2021 due to COVID-19.
In 2018 this race had 1,340 finishers. Based in Davis Square the Rás na hÉireann was one of Somerville’s largest 5K races.
This race draws some of the best 5K runners in New England. In 2018 the top four runners ran a 5:00 or less pace! 37 runners ran a 6:00 or less pace.
Many hundreds more ran your pace. So don’t be intimidated.
Mark Kenneally of Dublin, Ireland, set the course record of 14:19 in 2006. Molly Huddle, of Providence, Rhode Island, set the women’s course record of 15:59 in 2010.
So if you want to compete with some of the best 5K runners around or just go for a fun run with your friends, this mid-September race is for you.
With a strong St. Patty’s and Irish theme, this race attracts a young crowd and is always a great time. I do see a few kids in strollers, but this is generally not a family focused event.
TBD October 9:00 AM Sunday
2019 was the 24th year for this 5K! The race starts behind Arlington High School.
For 2020 this race was cancelled due to COVID-19 and no information is available for 2021 yet.
Registration was $30. Raise $150 and your registration is FREE. Raise $300, get FREE registration and a runner’s cap! They will even help you set up a fundraising page.
There will be plenty of parking at the high school. There is a fantastic brunch served after this race, which alone is worth the price of admission!
I ran this race three or four years ago and recall that it was around 1,000 runners and certainly not 3,000. I would recommend this race for the kids.
TBD December 11:00 AM
This race was cancelled in 2020 and details for 2021 have not been posted yet.
But we have a few months to go and hopefully things will change.
I’ve run this Davis Square 5K several times. It’s always brisk but not bone crushing cold. If you like big races, this one is for you!
In 2018 over 2300 runners finished this race, many in costume!
In 2019 we hung out with Bill Rodgers and several other marathon champions at The Burren. One of my last race events before COVID-19 changed our world.
2019 results were posted to Coolrunning.com. Cool Running was taken over by Active.com which in my opinion is useless.
Active.com’s lack of usability makes local race directories like this that much more important.
Jack’s Abbey sponsors the post race party at 18 Somerville bars. This is definitely a party race, so leave the kids and keys at home! The Red Line station is right around the corner, so why risk it.
Enjoy a fun race with friends, get into the holiday spirit and let someone else do the driving.
Shwag for this race includes a t-shirt and jingle bells.
Run Well my Friends and support your local races!