Marshfield St. Patrick's Day 5k

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