2025 Boston Marathon Registration Requirements. One mission, inc., a nonprofit corporation organized under the laws of the commonwealth of massachusetts (“one mission”), is entering a team (the “team”) in the 2025 boston marathon to be held in massachusetts on april 21,. It's crucial for runners to note the.

Let’s take a closer look at the key details surrounding the registration process, qualifying standards, and what athletes can expect as they prepare for the 129th boston. They must be aged 18 and have previously run a.