Cork City 0 Bohemians 3
Glen Crowe hit a brace to get Bohs' back in the groove and dent Cork's title ambitions.
Dave Morrison's 33rd minute shot was parried by Cork keeper Michael Devine, Trevor Molloy miscued and Crowe drilled the ball home for the opener.
Skipper Kevin Hunt added Bohs' second on 80 minutes when his weak shot crossed the line following a centre from Dave Hill.
Crowe then got his second on 90 minutes, shooting home after good work by Hunt and new boy Bobby Ryan.