Novak Djokovic continued his dominant streak at the Barclays ATP World Tour Finals with a spectacular performance against Stan Wawrinka to defeat the Swiss No. 2 in straight sets on Wednesday afternoon.

The top seed suffered from a slow start, where he was broken in his opening game in the match, but quickly turned things around to win 12 of the next 13 games to defeat Wawrinka 6-3, 6-0 in 66 minutes.

“I definitely didn’t expect it, but hoped that I can play this way again and the match result can go this way for me,” said Djokovic. “Obviously Stan wasn’t feeling his best today, made a lot of unforced errors and had a low percentage of first serves in. On my side, I just played very solid from all over the court. I think I covered the court very well, got a lot of balls back, mixed up the pace, got him off the comfort zone. That’s something that was part of my game plan.”

With his latest victory, Djokovic is now one win away from clinching the year-end No. 1 ranking. He also extended his indoor winning streak to 29 matches and has now managed two bagel sets against Top 10 players in the last month.

Wawrinka began the match in fantastic fashion but quickly fizzled away – evident in the second set, where he only won seven points.

“It was not my best match, that’s for sure,” said Wawrinka. “He’s playing really well. He’s (has) confidence. He’s not missing much. Today I think it was more about what I was doing. He put me in a position that I think a little bit too much. I was not really clear what I’m going to do, because he’s doing everything well and he’s returning well.”