London and New York were withdrawn from the 2020 and 2021 Connacht championships as part of the impact of the COVID-19 pandemic on Gaelic games, due to international travel restrictions.
London and New York returned in 2022 but games for 2021 not expected to take place until 2026.
The lowest ranked county to play in the quarter-finals was Sligo of Division 4.
Three counties were given a bye to this stage and were joined by the winning team from quarter-final.
The lowest ranked county to play in the semi-finals was Leitrim of Division 4.