Round-up: Rebelettes undone by five-star Mackin
Aimee Mackin led the Armagh charge as Lidl National League Division 1 champions Cork fell to a rare defeat.
Ephie Fitzgerald's All-Ireland winners lost by 0-9 to 0-12 on their travels to Clonmore, where Mackin scored five points for the hosts.
This was a historic victory for Armagh over Cork in the senior grade and they were full value for it, as the Rebelettes suffered their first competitive loss since losing to Dublin almost a year ago in the league.
Meanwhile, in Clones, Monaghan won an incredible game against Mayo, as Caoimhe Mohan's goal four minutes into stoppage time sealed a 3-9 to 1-14 victory for the home side.
Mayo led heading into the final quarter, 1-11 to 1-5, but Monaghan's second goal, scored by Eimear McAnespie following a superb pass from sister Ciara, kick-started the Monaghan revival.
Mayo led by two as the clock ticked down, but there was still time for one last Monaghan attack and Mohan struck to secure a precious win.
In Castleisland, visitors Dublin came away with a 1-8 to 0-8 victory over Kerry to maintain their 100pc start to the league campaign.
Kate McKenna's goal effectively separated the sides, but captain Sinéad Aherne bagged six points, including five frees, for the Sky Blues.
Despite losing Lauren Magee to a yellow card, Dublin dug in late and took maximum points.
Elsewhere, at Tuam Stadium, Donegal made it two wins from two as ace forward Geraldine McLaughlin stepped up to the plate with two late scores to earn a 2-10 to 1-12 victory over Galway.
The Tribeswomen were ahead for the first time in the game in stoppage-time, but after McLaughlin claimed the equaliser, she popped up with a dramatic winner for Donegal, who are thriving thus far after gaining promotion back to the top flight.
In Division 2, there were victories for Cavan, Tyrone, Waterford and Sligo, while Tipperary, Leitrim, Wexford and Meath were victorious in their Division 3 fixtures. In Division 4, Wicklow, Antrim, Fermanagh and Longford claimed maximum points from their second outings of the season.