4 events in Marshfield, Massachusetts
From big races to Saturday morning group runs—find 5k events and connect with the local endurance sports community.
Marshfield
4 events in Marshfield-
Sat, Mar 14, 2026 at 10:00 AMSee full details
Come celebrate St. Patrick’s Day at “America’s Most Irish Road Race”! Wear your green and join 4,000 runners, walkers and crawlers at the South Shore’s premier road race! Flat, fast, USATF certified 5K ocean course with cash prizes ($683,$250,$100) for the top three overall male and female, along with $317 ($1,000 total!) for a new male or female course record! (M-14:39 & F-16:13). Age group awards first through third. Great finish parties at the pubs and restaurants of Brant Rock! A fun day for all!
Registration Price
Only $30.00 through 12/31/25
$35.00 through 3/4/26
After 3/4/26 and Same Day Registration - $40.00
$25.00 18 and under.
Shirt deadline is 2/7/26
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Sun, Jun 14, 2026 at 7:30 AM
Welcome to the 10th Annual Beach and Back Half Marathon & 5K in Marshfield, MA by Wicked Fast Race Co. in partnership with the same great race team over at RaceWire!
Join us for another amazing year with awesome SWAG, free BEER, and tons of FUN!
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Mon, Sep 07, 2026 at 10:00 AM
T-Shirts
Tee shirt will be provided to anyone who pre-registers by August 25, 2026. No tee shirts will be available for purchase at the race.
Race packet pick-up will be on Thursday, Sep 3 from 5:30-7 PM at the Marshfield Hills General Store (165 Prospect Street, Marshfield Hills, MA 02051).