A stunning Bailey Peacock-Farrell penalty save gave Wednesday platform for victory as we overcame local rivals Rotherham 2-0.
Second half goals from Florian Kamberi and Lee Gregory followed the Northern Ireland international’s earlier intervention to deny Kieran Sadlier and the Owls marched on to take all three points.
Peacock-Farrell posted his fourth successive clean sheet to boot as Wednesday extended the unbeaten start to the season.
Darren Moore shuffled his pack for the derby clash, making five changes from the team that beat Fleetwood in midweek.
One of those changes, Callum Paterson, threatened first for Wednesday, jinking his way into the area to tee up Kamberi but the latter’s shot was always rising.
That was sandwiched between half chances for Joshua Kayode and Michael Smith, both of which were wide of the target.
Rotherham began to gain the upper hand, winning a string of corners, but the Owls rearguard had control in front of the largely untroubled Peacock-Farrell.
Substitute Sadlier, on for the injured Chiedozie Ogbene, flashed a long ranger wide just before the contest exploded into life on the brink of half time.
Paterson tracked back at pace to chase down Kayode, the forward went to ground on the edge of the box and the referee pointed to the spot.
Sadlier stepped up and unleashed a fierce penalty but Peacock-Farrell pulled off a wonderful save to keep the game goalless at the interval.
And another blow was swiftly to follow for Rotherham as Wednesday took the lead four minutes into the second half.
Massimo Luongo sent Paterson racing down the right and the Scot looked up to feed the advancing Kamberi, who slammed into the roof of the net from close range.
The Millers responded with Sadlier, out to make amends for his penalty miss, thrashing inches past the post on the angle.
Some feisty tackles came from both sides as Rotherham sought a way back and the Owls were giving their all to hold out for the win.
Barry Bannan presented Gregory with a chance to double the advantage on 67 minutes but Viktor Johansson raced off his line to palm clear.
But 10 minutes later the contest was all but put to bed. Great work in the engine room from Luongo saw possession fall to Dennis Adeniran, whose low hit appeared routine for Johansson.
The keeper, though, somehow lost grip of the ball and Gregory nipped in to prod into an empty net.
The 2,000+ Wednesdayites gathered behind the goal went wild and the celebrations continued as their team made the short journey home perched at the summit of the division.
Wednesday: Peacock-Farrell, Hunt, Iorfa, Dunkley, Palmer, Wing (Adeniran 59), Luongo, Bannan, Brown, Paterson, Kamberi (Gregory 59)