Sheffield Wednesday have now made the joint-worst start after nine games in Championship history after Sunderland beat them 3-0 at Hillsborough on Friday night.
A Dan Ballard header and two Jack Clarke goals, one a penalty, had the Black Cats in cruise control before half-time.
Wednesday are a club in disarray off the field, with chairman Dejphon Chansiri releasing a statement earlier in the day stating he would be putting no additional money into the club.
Owls boss Xisco Munoz made two changes to the team that lost 3-0 at Swansea, with George Byers and Callum Paterson joining the starting XI.
Sunderland manager Tony Mowbray made just the one switch after the 1-0 defeat at home to Cardiff, with Patrick Roberts coming in for Abdoullah Ba.
The first two chances of the game brought goals for the away side.
First, Ballard rose highest to meet Alex Pritchard’s corner after five minutes and just three minutes later Sunderland doubled their advantage when Clarke drove towards goal from the left and arrowed a beauty into the bottom corner.
On-loan Wednesday man John Buckley had a go from outside the box but his effort was put past the post by goalkeeper Anthony Patterson, then Anthony Musaba chanced his arm moments later but saw his curling attempt fly over the bar.
The third goal came in the 31st minute after Bambo Diaby brought down Mason Burstow in the box. Clarke stepped up to send Devis Vasquez the wrong way – it was the Championship top scorer’s second of the night and seventh of the season, six of them coming away from the Stadium of Light.
Home fans who had not already headed for the exits chanted for both manager and chairman to leave the club.
In the second half, Pol Valentin made a mazy run down the right-hand side and his cross found Paterson, who saw his shot saved by keeper Patterson.
Jobe Bellingham nearly made it four but his effort from distance went just wide.
Despite bringing on forwards Ashley Fletcher and Djeidi Gassama in the closing stages, Sunderland comfortably dealt with the majority of Wednesday’s attacks for the remainder of the game, having done the damage in the first 30 minutes.
The result lifts the Wearsiders to fourth ahead of Saturday’s fixtures, while Wednesday remain bottom, with just two points from their opening nine games.