For the 5K: In addition to your long sleeve technical shirt, you will receive 5 complimentary CambridgeSide parking vouchers, and a race bib with a timing chip + 2 beer coupons. 

For the half marathon: In addition to your quarter zip pullover, you will receive 5 complimentary CambridgeSide parking vouchers, and a race bib with a timing chip.

The 5K starts at 10AM on Saturday, 10/31/26. 

The half marathon starts at 7AM on Sunday, 11/1/26. A reminder that race day, 11/1/26, is the end of Daylight Savings Time. Be sure to fall back one hour & grab that extra sleep!

Packet pick up will be located at CambridgeSide (100 CambridgeSide Place, Cambridge, MA) on Level 3. Please take the escalators across from Zara up to Level 3. You must attend packet pickup during one the listed timeframes to get your bib, swag & parking passes:
Thursday, 10/29, 3:00 pm to 7:00 pm
Friday, 10/30, 3:00 pm to 7:00 pm 
Saturday, 10/31, 8:00am to 10:00am & 12:00 pm to 6:00 pm 
THERE IS NO RACE DAY PACKET PICK UP. 

More detailed information about race day & bib pick up will be sent out via email the Monday before the race, 10/26/26.

Yes. Friends or family can pick up your race items for you. Please make sure they know your bib number, have a copy of their ID & a copy of your ID before arriving at bib pick up. 

No. Race bibs and swag will not be mailed. 

Yes, you can change your swag size until 9/28/26. Here's how.

All race entries are final. We do not offer refunds or deferrals.

Make a claim here.

Yes! You can transfer your bib to another person. The person you are transferring the bib to will have to pay a $25 transfer fee. Find out how complete this transfer here. The deadline to transfer bibs is Thursday, October 1 @ 11:59PM. Transfer deadlines are subject to change based on the race selling out. 

You can create or join a team for the Cambridge Half Marathon until the team deadline on September 30, 2026 at 11:59PM.

You can create or join a team for the 5K until the team deadline on Friday, October 30, 2026 @ 9:00PM. 

Here are the steps you can follow to make the change.

Yes! Login to your RunSignUp profile, view your events under Upcoming Events & click Manage Registration next to the Cambridge Half Marathon. Click Add-On menu item located on the top OR left of the race page. Edit the quantity of the Add-On that you would like & click Continue.