Boston Buildup Winter Series

A series of four progressive endurance races will adapt to pandemic guidelines and restrictions, potentially offering virtual events if necessary. Participants can register individually or for the entire series, with exclusive socks for the first 125 series registrants. Facilities will be open, and timing methods like ChronoTrack B-Tag will be used. Postponed events will occur the following Sunday, with updates on social media and via email. Awards include technical apparel for top performers while overall series winners receive custom plaques. Scoring follows a weighted system, and standings are refreshed after two races.