A formidable display of attacking football, led by Eden Hazard, Pedro and Diego Costa, sent Chelsea to the Premier League summit.
Eden Hazard scored twice as Chelsea moved to the top of the Premier League with a scintillating 5-0 victory over Everton at Stamford Bridge.
Not since winning the 2014-15 title have Chelsea led the top flight, but they took advantage of Manchester City's 1-1 draw with Middlesbrough earlier on Saturday to do so, though Arsenal or Liverpool could displace them by winning their respective matches on Sunday.
Antonio Conte's team, unchanged for the fourth straight league match, ran riot and punished visiting manager Ronald Koeman for his decision to switch to a three-man defence.