The Boston Marathon was canceled in 2020 due to the COVID-19 pandemic, so there was no winner that year

. For the most recent completed races around that time:

• The 2021 men's winner was Benson Kipruto from Kenya, and the women's winner was Manuela Schär from Switzerland

• The 2022 men's winner was Evans Chebet from Kenya, and Manuela Schär also won the women's race again

• The 2023 men's winner was Evans Chebet again

In summary, there was no Boston Marathon winner in 2020 because the race was canceled. The closest winners before and after 2020 were Benson Kipruto (men's, 2021) and Manuela Schär (women's, 2021)