St. Patrick's Athletic 1 Galway United 2
Derek Glynn scored twice for the second match running as Galway stunned leaders St. Pat's at Richmond Park.
St. Pat's took the lead on 29 minutes with a route one goal.
Keeper Barry Ryan's clearance was flicked on by Gary O'Neill for strike-partner Mark Quigley to run through and shoot past Gary Rogers for his ninth league goal of the season.
But Galway kept playing and were level five minutes later when Glynn cut past Stephen Brennan from Stephen O'Flynn's pass to beat Barry Ryan.
Glynn, who hit a double in Tuesday's 3-0 win at Longford, then scored a stunning winner on 75 minutes, firing low past Ryan.