Harry Kane and Heung-Min Son each scored and provided the other with an assist as Tottenham claimed the north London derby spoils, defeating Arsenal 2-0.
The match was settled largely in the first half, as son Son strode forward to curl a quite brilliant effort into Bernd Leno's far corner, giving the goalkeeper absolutely no chance.
Arsenal dominated possession and territory and Jose Mourinho's side were more than happy to cede it to them, without the visitors creating much in the way of meaningful opportunities.
And just before half-time, Mikel Arteta's team were brutally exposed on the counterattack, with Son sliding a seamless reverse pass into the path of Kane, who battered his finish in off the crossbar.
In the second half Arsenal once again had most of the ball, but other than an Alexandre Lacazette header that was palmed around the post by Hugo Lloris, there was precious little in the way of goalmouth incident.
And in the end Tottenham were comfortable in seeing out the contest and remain top of the Premier League table as a logjam of teams form behind them. Arsenal, meanwhile, have more serious relegation concerns at the moment than any ambition of threatening the top four positions.