Group B - Lisburn Rangers 1-4 Galway United
Aoibheann Donnelly's hat-trick led Galway United to a 4-1 win away to Lisburn Rangers at Crewe Park.
Galway sit top of Group B and are all but through to the quarter-finals on goal difference.
Lisburn remain on zero points but can still qualify if results go their way in the final round.
Group B - Peamount United 5-0 DLR Waves
Peamount United bounced back from their opening-day defeat in emphatic fashion at Greenogue, running out 5-0 winners against DLR Waves.
Eleanor Ryan-Doyle struck twice, with Sophie Byrne also on the scoresheet and an own goal among the five.
Peamount and DLR Waves are level on three points heading into Match Week Three, with the Peas holding a significant goal-difference advantage.
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Group A - Shamrock Rovers 3-1 Sligo Rovers
Shamrock Rovers laid down a marker in Tallaght with a 3-1 win over Sligo Rovers in the meeting of Match Week One's Group A winners.
Ella Kelly opened the scoring after just four minutes before Therese Kinnevey doubled the lead shortly after.
Sydney Stephens pulled one back for Sligo on 18 minutes, but a fine Emily Corbet finish deep into stoppage time sealed the win.
Rovers go top of Group A and are mathematically through to the quarter-finals, while Sligo can still progress in Match Week Three.
Group A - Wexford 1-1 Linfield
A 1-1 draw at Ferrycarrig Park leaves both sides with their first point on the board.
Cora Chambers put Linfield ahead on the hour, before Emma Bucci's header deep into stoppage time rescued a point for Wexford.
Linfield sit third and Wexford fourth in Group A, with both still in contention to advance heading into the final round.
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Group C - Cork City 0-0 Treaty United
A goalless draw at Turner's Cross sees Treaty United go top of Group C on four points, while Cork City sit bottom on one point heading into Match Week Three.
Group C - Cliftonville 3-2 Athlone Town
A five-goal thriller at Solitude saw Cliftonville claim a 3-2 win in a game that swung repeatedly.
Danielle Maxwell opened the scoring for the home side before Roisin Molloy equalised five minutes later.
Teegan Lynch restored Cliftonville's lead on the hour, only for Noelle Murray to level again inside ten minutes. Cliftonville responded immediately from the restart, with Caitlin McGuinness striking the decisive winner.
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Group D - Shelbourne 2-1 Bohemians
Shelbourne made it two wins from two with a 2-1 victory over Bohemians at Tolka Park.
Becky Watkins opened the scoring on nine minutes before Aoibheann Clancy doubled the lead 15 minutes later, scoring an olimpico direct from a corner.
Savannah Kane pulled one back for Bohemians before the break, but the visitors couldn't find an equaliser. Shelbourne sit top of Group D on six points, with Bohemians bottom on zero.
Group D - Glentoran 0-1 Waterford
Waterford recovered from their opening-day defeat with a 1-0 win away to Glentoran at Blanchflower Stadium. Danielle struck on 16 minutes to seal the win, putting Waterford firmly in contention for a quarter-final place heading into Match Week Three.
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Women’s All-Island Cup Results - Round 2
Group A
Saturday 9 May
Shamrock Rovers 3-1 Sligo Rovers
Wexford 1-1 Linfield
Group B
Saturday 9 May
Peamount United 5-0 DLR Waves
Sunday 10 May
Lisburn Rangers 1-4 Galway United
Group C
Saturday 9 May
Cork City 0-0 Treaty United
Sunday 10 May
Cliftonville 3-2 Athlone Town
Group D
Saturday 9 May
Shelbourne 2-1 Bohemians
Sunday 10 May
Glentoran 0-1 Waterford