Brentford ended a bad week of results with a 3-0 home defeat at the hands of Barry Fry's Peterborough.
Peterborough got off to a flying start as they took the lead in the second minute through veteran striker Andy Clarke.
Clarke, 36, picked up a long ball 30 yards from the Brentford goal as he beat the offside trap.
The striker showed all his experience as he calmly slotted the ball passed the keeper's left hand and into the bottom corner of the goal from 12 yards.
Brentford should have gone in level at half time when striker Mark Peters picked up a great ball over the top of the defence only to miss hit his volley straight at the keeper.
Posh started the second half the livelier of the two teams and doubled their lead on 48 minutes through centre-back Mark Arber.
Arber, 26, had an easy tap in from six yards when the Brentford keeper, Paul Smith, couldn't hold on to a Leon McKenzie header and the ball dropped kindly for Arber.
Brentford did have some chances in a scrappy second half and no-one came closer than Kevin O'Connor, who saw his well-struck volley from the edge of the box come back off the post towards the end of the game.
Posh were the better team on the day and the icing on the cake was a great piece of individual skill by Andre Boucaud.
The striker rolled the ball back with his studs on the edge of the box and lobbed the keeper from 18 yards in the final minute.
"Arber did well and got the important goal," said Barry Fry. "You have got to be delighted with a clean sheet, three goals and three points."