PETER Clarke's Mayo plotted the downfall of his former side Dublin in Division 1 of the Ladies National Football League to set up a semi-final clash with Monaghan.
The Westerners prevailed 1-10 to 0-8 in the winner-takes-all clash after overturning a 0-5 to 0-6 half-time deficit.
Ace forward Cora Staunton was influential for Mayo. She was involved in her side's goal when her free kick was pounced on by Niamh Kelly, who fired home.
Meanwhile, Cork and Laois will meet in the other semi-final.
All-Ireland champions Cork did a demolition job on Donegal at Cork IT on Saturday, winning 7-23 to 0-3.
Elsewhere, Sinead Doogue and Martina Dunne netted for Laois but already-relegated Meath still recorded their first victory of the season as they ran out 3-16 to 2-13 winners in Summerhill.
And Monaghan made it seven wins from seven with an emphatic 6-16 to 1-4 victory against Ulster rivals Tyrone in Clones.
Ciara McAnespie scored a hat-trick, Caoimhe Mohan a brace and Therese McNally notched the other goal for Gregory McGonigle's rampant side.
In Division 2, Clare avoided relegation with an impressive 7-8 to 0-8 victory against Westmeath in Kinnegad.
Kerry will play Kildare and Galway will take on Westmeath in the Division 2 semi-finals.
Wicklow were relegated from Division 3 after losing by 1-6 to 4-18 at home to Wexford, who stay up.