The championship draw took place on 29 June 2020.
[1] A straight knockout format was used for the first time in a number of years due to the impact of the COVID-19 pandemic on Gaelic games.
The championship ran from 14 August to 20 September 2020.
Causeway entered the championship as the defending champions.
[3] Kilmoyley's Maurice O'Connor was the championship's top scorer with 3-15.