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Marshfield St. Patrick's Day 5k

Saturday, March 13, 2027, first start 10:00 AM, in Marshfield (277 Ocean Street). Distances: 5K. Entry from $30; the 5K goes from $30 to $35 after December 31.

Date
Saturday, March 13, 2027
Start time
10:00 AM (earliest wave)
Location
277 Ocean Street, Marshfield, MA 02050
Area
South Shore, Boston
Distances
5K
Course
Road or path
Price
$30 plus the platform's processing fee
Next price increase
Thursday, December 31, 2026: 5K $30 → $35
Registration
Open. Opened September 17, online signup closes Saturday, March 13, 2027

How to register

Registration is on RunSignup. Pick your distance, add any extras, and you'll get a confirmation email with your bib details. Sign up by December 31 to pay $30 instead of $35.

Register on RunSignup →Race website

Course and race notes

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!

From the race's own listing. Check the race website for the course map and parking.

Source: RunSignup public race API, refreshed 2026-10-17. Details can change; the registration page is the final word.

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