The effort was there for the Owls, particularly after Reece James was adjudged to have produced an over-zealous tackle in the first half and was sent off with a straight red card, but Wednesday barely laid a glove on their opponents across the 90 minutes as things fell away from them.
Peterborough are a top side at this level and defeat – Wednesday’s first of the season – is no disgrace, but Darren Moore and his staff may well be furious with the manner of the goals they conceded, once again from crosses.
There were too many ineffectual performances on a night Moore shuffled his pack in selection.
Here are our player ratings from an eventful evening.
1. David Stockdale - 5
He's the daddy of the Wednesday defence. After every tackle, every block, Stockdale is there to cajole. Made a couple of important saves but got away with one at a corner, too. Photo: UGC/Steve Ellis
2. Michael Ihiekwe - 5
Unusually sloppy in possession on one or two occasions but defended OK. Hooked one off the line and was subbed for Windass as Wednesday went chasing. Photo: UGC/Steve Ellis
3. Ben Heneghan - 5
Nothing like a good, early block to get your evening underway and from there Heneghan looked confident. Produced a classy tackle to deny Marriott on the half-hour mark. Fell away and didn't do enough to deny Clarke-Harris for the goal. Photo: UGC/Steve Ellis
4. Reece James - 4
Looked a threat down the left and linked up nicely with Johnson outside him. His red card changed the game - certainly a harsh one at first glance, but was it a challenge he needed to make? Looking back he'll be disappointed. Photo: UGC/Steve Ellis