In 171 days · Sat, Mar 13, 2027
Don't let race day sneak up
One email during race week. That's it.
Saturday, March 13th, 2027
277 Ocean Street, Marshfield MA
5K
31–46°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2026
28–42°F
dry
2025
36–42°F
dry
2024
34–46°F
dry
2023
34–42°F
rain
2022
21–37°F
dry
2021
29–46°F
dry
2020
40–59°F
rain
2019
26–39°F
dry
2018
31–38°F
rain
2017
12–30°F
dry
Best months to race in Massachusetts →
About this race
Event Overview
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!
Race Details
- Location: 277 Ocean Street, Marshfield, MA
- Date: March 13, 2027
- Course: Flat, fast, USATF certified 5K ocean course
- Awards: Cash prizes for the top three overall male and female, age group awards first through third
Cash Prizes
- Top Three Overall: $683, $250, $100
- Course Record Bonus: $317 ($1,000 total!) for a new male or female course record
- Male Record: 14:39
- Female Record: 16:13
Finish Party
Great finish parties at the pubs and restaurants of Brant Rock! A fun day for all!
Registration Price
- Early Registration: Only $30.00 through 12/31/26
- Standard Registration: $35.00 through 3/3/27
- Late Registration: $40.00 after 3/3/27 and Same Day Registration
- Youth Registration: $25.00 for ages 18 and under
Shirt Deadline
Shirt deadline is 2/6/27.
More Information
For more details, visit the official race page: Marshfield St. Patrick's Day 5k.
Course map
Hotels for race weekend
Live prices near the start line, Mar 12 – 14, 2027.
Train with a club
Run clubs near Marshfield to train with before race day.
Suggested Races
Organize this race?
Claim it free to manage your listing — and get it featured for free, while spots last.

















