Mainz, February 1: A fine goal from Thiago Alcantara was the highlight as Bayern Munich cruised to a 3-1 victory away to Mainz, their sixth straight Bundesliga triumph.
Bayern go two points clear at the top ahead of RB Leipzig, who have a chance to return to the summit when they play Borussia Monchengladbach later on Saturday.
The visitors were three up inside 26 minutes at Opel Arena, with Robert Lewandowski's 22nd top-flight goal of the campaign setting them on their way.
For the third straight game, both Thomas Muller and Thiago scored, as Jeremiah St. Juste's first-half header proved to be no more than a consolation.
Having reached 58 goals in their first 20 matches, a club record, Hansi Flick's side have huge momentum going into a massive clash against Leipzig next week.
Mainz, meanwhile, have lost six of their last seven league matches and sit just three points off the bottom.
They had conceded six times in their last two meetings with Bayern and it only took eight minutes for the German champions to move in front, Lewandowski sending a thumping header past goalkeeper Robin Zentner from eight yards after Benjamin Pavard picked him out with a pinpoint cross from the right.
It was two just six minutes later, as Lewandowski ran in on goal and collided with Zentner, prompting Leon Goretzka to gather the loose ball and square for Muller to convert with a simple finish.
A clever Leandro Barreiro effort struck the post at the other end and Mainz were left to rue that near miss after 26 minutes, when Thiago took a pass from Alphonso Davies 25 yards and embarked on a weaving run past Pierre Kunde, St. Juste and Barreiro, before firing in with a left-footed finish.
St. Juste got one back in the last minute of the first half, heading in Daniel Brosinski's corner via a heavy deflection off Goretzka.
A quiet second period almost had a tense finale only for Thiago to make a decisive challenge as Mainz substitute Adam Szalai bore down on goal, while Lewandowski screwed wide from a late chance to make it four.
What does it mean? Bayern flying ahead of top-of-the-table clash
A key contest against Leipzig awaits next week, where depending on their rivals' result against Gladbach they will either go in top or just one point behind. With six straight wins, in which they have scored 23 times, Bayern are in great shape.
Lethal Lewandowski not slowing down
Lewandowski's impressive early header set the tone and he also created four chances for his team-mates. The clinical 31-year-old frontman has already matched his league goals tally for the whole of last season, though he should have added a late second.
Mainz lacking creativity
Jean-Philippe Mateta did not have his finest outing, substituted after 74 minutes having not had a shot or created a single chance for Mainz. But he did not have much help, with the trio behind him - Robin Quaison Jean-Paul Boetius and Levin Oztunali – not producing a single key pass between them.
In-form Bayern host Hoffenheim in the DFB-Pokal on Wednesday, while Mainz are away to Hertha Berlin next Saturday.