A Wale Ayoola brace helped the Owls come from a goal down to beat rivals Leeds 2-1 at Thorp Arch.
In blustery conditions, a resurgent Wednesday side secured their fourth win in their last five outings.
United almost took the lead inside five minutes through a Kalvin Phillips freekick, but Wednesday keeper Joe Wildsmith was on hand to parry the ball away for a corner.
The hosts did break the deadlock a few minutes later, as Lewis Walters burst in to the area and slotted the ball in to the far corner from a tight angle.
Wednesday soon responded, with Emmanuel Dieseruvwe and Ayoola linking up nicely, but Ayoola’s effort just grazed the top of the bar.
On the half hour mark, Ayoola did pull the Owls level.
Diesruvwe was instrumental as he showed good strength to hold off a number of challenges before teeing up Ayoola, who fired the ball into the top corner.
Ayoola then put the visitors in front ten minutes into the second half, expertly slotting the ball into the bottom corner after some neat footwork down the left wing.
The Owls forward would have completed his hat trick moments later, but a brilliant point blank save from the White’s keeper Eric Grimes denied Ayoola of his treble.