Boston Marathon Dates. When is Boston Marathon in United States?

Boston Marathon is one of the world's oldest yearly marathon. It is held annually on Patriot's Day in the month of April. In the table below, you will find when Boston Marathon is official marked and celebrated in United States over a span of 15 years. All the information display below is also available via our API as well as downloadable as a csv. Signup here to get started.

Our API allows you to specify the State and Region as part of the API requests, thereby limiting the requests to a particular state or city. View the API documentation for a full description of the supported countries, states and regions.

Year Day of the Week Date Name
2010
 Monday April 19 Boston Marathon
2011
 Monday April 18 Boston Marathon
2012
 Monday April 16 Boston Marathon
2013
 Monday April 15 Boston Marathon
2014
 Monday April 21 Boston Marathon
2015
 Monday April 20 Boston Marathon
2016
 Monday April 18 Boston Marathon
2017
 Monday April 17 Boston Marathon
2018
 Monday April 16 Boston Marathon
2019
 Monday April 15 Boston Marathon
2021
 Monday October 11 Boston Marathon
2022
 Monday April 18 Boston Marathon
2023
 Monday April 17 Boston Marathon
2024
 Monday April 15 Boston Marathon
2025
 Monday April 21 Boston Marathon

These dates may be modified as official changes are announced, so please check back regularly for updates or sign up for our newsletter to receive regular updates. All updates are automatically added to our API as well.

Our team of holiday editors are continuously monitoring for changes from government agencies and local authorities to this data to ensure we're providing the most accurate information possible. If you happen to notice an error, please get in touch.