The public health measures introduced to combat the COVID-19 pandemic resulted in the competition being delayed.

[1] On 17 March, the GAA confirmed that the opening fixture – due to have taken place at Gaelic Park in The Bronx on 3 May – had been postponed.

London were also eliminated from the 2020 All-Ireland championship after a meeting of the GAA's Ard Chomhairle on 12 September 2020.

New York were initially scheduled to host Galway decided on 26 June not reschedule the match.

London were initially scheduled to host Roscommon at Ruislip at the beginning of May, before all GAA activity was postponed due to the COVID-19 pandemic.

This previously only happened during the period when all Connacht finals were between Galway and Mayo (1933–1940) again in 1965 the match was rescheduled for 2023 season.

It emerged that in order for London's quarter-final to take place their entire squad and backroom team would have had to self-isolate in Ireland for two weeks prior to the match.

[8][9][10][11] As the championship was delayed due to the impact of the COVID-19 pandemic, the qualifiers were abandoned with all matches being changed to straight knock-out.

The player who catches the ball, either an attacker or defender, can signal his intent to stop and take the free-kick resulting from the mark by raising an arm or play on immediately.