Trillium 2026 Spring 5K

Join us on Saturday, May 16 for our 8th annual Trillium Spring 5K!

We’re proud to be partnering with Girls on the Run Greater Boston (GOTRGB) and bringing together a global community for our most exciting race to date. With over 500 in person runners and hundreds of virtual participants, we invite you all to join us in supporting an incredibly important cause.

Do you allow dogs?
Due to municipal licensing and zoning regulations we are unable to allow dogs at our Canton location, with the exception of trained service animals.

Can I run with a stroller?
Yes! We encourage you to get out there with your family! If you are running with a stroller we ask that you line up in the back to avoid collisions with runners.

What is the minimum age to run?
There is no age minimum to run the 5K; however, we also offer a kids Fun Run for kids up to 10 years old!

Am I required to raise $300 to participate?
No. While we encourage you to raise as much as you can in support of Girls on the Run, there is no fundraising requirement. 

When will I receive my race kit?
If you signed up to run with us virtually, we will send the race kits out in April. If you are running in person, you can pick up your race kit on one of our pre race pick up dates or the morning of the race.

Can I pick up my bib number early?
Yes! We will be hosting two pre-race bib pickups.

Thursday 5/14 at our Fort Point location from 5-7pm 
Trillium Fort Point: 50 Thomson Place, Boston, MA 02210

Friday 5/15 at our Canton location from 5-7pm.
Trillium Canton: 100 Royall St, Canton, MA 02021

If I cannot make it to one of the pre-race bib pick ups, can I pick it up the day of?
Yes. Registration will begin at 8:45am the morning of the race and you can pick up you bib and race kit!

If I picked up my bib and race kit early, do I need to arrive early to check in?
No. You will not need to check in when you arrive; however, we recommend showing up early to secure parking and be ready for race time

Where should I park?
The main Trillium parking lot will be closed for participants. There will be signs directing you to the parking lots next door at Tufts

Are donations to Girls on the Run tax deductible?
Yes. Girls on the Run is a registered 501c3 in the Commonwealth of Massachusetts and all donations to Girls on the Run qualify for a tax deduction.

Are donations to Girls on the Run refundable?
No, donations to Girls on the Run are not refundable. 

Where does the money donated to Girls on the Run go?
Another great question! To find out more about who we are and where the money goes, head on over to girlsontherunboston.org.

Girls on the Run Greater Boston (GOTRGB) is a positive youth development program that inspires girls in grades 3-8 to be joyful, healthy and confident through an experience-based curriculum that
creatively integrates running and physical activity. Since 2010, GOTRGB has empowered more than 22,000 girls to recognize and activate their limitless potential, giving them the confidence to boldly pursue their dreams.

Each season, coaches help girls build a toolbox of social-emotional skills like standing up for
themselves and others, managing emotions, and intentionally choosing friends. Each lesson
covers a topic through interactive games, discussions and physical activities. Over the course of
the program the girls work on goal setting with their sights set on a season-ending Celebratory
5K, where they move at their “happy pace” to complete the 5K.

You can learn more about Girls on the Run Greater Boston here: girlsontherunboston.org

Early Packet Pickup

• Thu, May 14, 2026: Fort Point 5-7 pm
• Fri, May 15, 2026: Canton 5-7 pm

Race Day Schedule

Race Day Check-In: May 17 at 8:45am
Kids Fun Run: 9:15 am
5k Begins: 9:45 am
Post Race Party: 10 am-12 pm

Swag!

Registration for the Spring 5K includes a Trillium branded running belt and 1 beer at the post race party!

Run Virtually

Not local to Trillium? We also have the option to participate in the Trillium 5K virtually! Virtual registration includes a bib, Trillium branded running hat, and shipping.