The Mayo Senior footballers will play their final two rounds of the Allianz National Football League in October.
Mayo will travel to Galway in Round 6 on the weekend of October 17th/18th and they welcome Tyrone to Elverys MacHale Park on the weekend of October 24th/ 25th.
The 2020 All Ireland senior hurling and football finals will be played on December 13th and 19th respectively.
The GAA confirmed the format for this year's truncated championships in both codes this morning, with the All-Ireland football qualifiers to be scrapped.
The football campaign will see the provincial championships played as a straight knockout, with the four winners to advance to the All-Ireland semi finals.
All knockout games will be played to a finish on the day, with extra time and penalties to be used if necessary.
Mayo will begin their Connacht Championship campaign on the weekend of October 31st/November 1st away to Leitrim.
Roscommon will commence their Connacht campaign that same weekend against London and the winners of both matches will meet in the Connacht SFC semi-final on November 7/8. The final is pencilled in for one week later, on November 14/15.
New York won't be part of the Connacht or All-Ireland Championship for 2020.
The Association has confirmed that the provincial and All-Ireland club championships as well as the All-Ireland Schools Series and Tailteann Cup, have been postponed for the calendar year.