Diego Costa got the only goal of the game in the first half to settle the match and take the Blues to the top of the Premier League table.
It caps a remarkable turn of form since the defeats to Liverpool and Arsenal in September.
Chelsea player ratings against Middlesbrough
Sun, November 20, 2016Express Sport rates the performances of Antonio Conte's Chelsea players during their Premier League win over Middlesbrough
Which Chelsea players stood out against Middlesbrough during the Blues' win at the Riverside Stadium?
And Conte doesn’t want his side to lose their momentum.
He told the BBC: “I am very proud but we must know we have to continue in this way.
Chelsea's Diego Costa (left) celebrates win with manager Antonio Conte
“I told the players we must start well after the international break and I think we had the right concentration to win a tough game.
“I knew this game would be difficult because this team is well organised and they are in good form.
“But we deserved to win because we scored the goal and created many chances for a second goal.”