| Ex. SEC-21-GM-030 | BAA 124th Boston Marathon Virtual After Mayor Walsh CancellationBoston Marathon (124th, April 20, 2020; 125th, April 19, 2021) | Boston Athletic Association (B.A.A.) with the City of Boston | Hopkinton to Boston, MAOrganizer | May 28, 2020 | 2020 Q2 | Organizer notice | Primary source read | |
| Ex. SEC-17-GM-091 | Boston Athletic Association, '124th Boston Marathon to be held virtually' (May 28, 2020): following Mayor Walsh's cancellation of the marathon as a mass-participation road race (live page)124th Boston Marathon: postponed from Apr. 20 to Sept. 14, 2020, then cancelled as an in-person race and run virtually; 125th moved to Oct.… | Boston Athletic Association | Hopkinton to Boston (eight cities and towns), MAOrganizer | May 28, 2020 | 2020 Q2 | Organizer notice | Primary source read | |
| Ex. SEC-16-GM-004 | Organizer noticeBoston Marathon and the B.A.A. Official Charity Program (the nonprofit sector's largest single-day fundraising event in New England) | Boston Athletic Association | Hopkinton to Boston, MAOrganizer | Mar. 13, 2020 | 2020 Q2 | Organizer notice | Primary source read | |
| Ex. SEC-16-GM-005 | Organizer noticeBoston Marathon and the B.A.A. Official Charity Program (the nonprofit sector's largest single-day fundraising event in New England) | Boston Athletic Association | Hopkinton to Boston, MAOrganizer | Mar. 13, 2020 | 2020 Q2 | Organizer notice | Primary source read | |
| Ex. SEC-16-GM-031 | Organizer noticeBoston Marathon and the B.A.A. Official Charity Program (the nonprofit sector's largest single-day fundraising event in New England) | Boston Athletic Association | Hopkinton to Boston, MAOrganizer | Mar. 13, 2020 | 2020 Q2 | Organizer notice | Primary source read | |
| Ex. SEC-16-GM-032 | Organizer noticeBoston Marathon and the B.A.A. Official Charity Program (the nonprofit sector's largest single-day fundraising event in New England) | Boston Athletic Association | Hopkinton to Boston, MAOrganizer | Mar. 13, 2020 | 2020 Q2 | Organizer notice | Primary source read | |
| Ex. SEC-21-GM-029 | BAA 124th Boston Marathon Postponed to September 14Boston Marathon (124th, April 20, 2020; 125th, April 19, 2021) | Boston Athletic Association (B.A.A.) with the City of Boston | Hopkinton to Boston, MAOrganizer | Mar. 13, 2020 | 2020 Q2 | Organizer notice | Primary source read | |
| Ex. SEC-21-GM-031 | BAA 2021 Boston Marathon Not in April Road Races Prohibited Until Phase 4Boston Marathon (124th, April 20, 2020; 125th, April 19, 2021) | Boston Athletic Association (B.A.A.) with the City of Boston | Hopkinton to Boston, MAOrganizer | Oct. 28, 2020 | 2020 Q4 | Organizer notice | Primary source read | |
| Ex. SEC-06-GM-041 | AP via Boston.com, 'The 2020 Boston Marathon has been canceled' (May 28, 2020), quoting the B.A.A.Boston Marathon 2020 | Boston Athletic Association; City of Boston | Boston (and Hopkinton to Boston course), MAOrganizer | May 28, 2020 | 2020 Q2 | Organizer notice | Confirmed from a secondary source | |
| Ex. SEC-22-GM-017 | B.A.A. homepage: '124th Boston Marathon will be virtual' (capture June 4-5, 2020)Boston Marathon 2020 and 2021 (the B.A.A.'s race; tents, staging, barricades, generators and vehicles along 26.2 miles and at the Expo) | Boston Athletic Association (B.A.A.) | Boston (Hopkinton to Boston), MAOrganizer | Mar. 13, 2020 | 2020 Q2 | Organizer notice | Primary source read | |