Juventus eased to a 3-1 win over relegation-threatened Chievo Verona in Serie A as its remarkable home record continued on Sunday.
Juventus, which has now won all 12 of its home league matches this season, remained nine points clear of Roma, which beat Sampdoria 3-0 in the day's late kickoff and has a game in hand.
It was coach Antonio Conte's 100th match in charge.
Kwadwo Asamoah, Claudio Marchisio and Fernando Llorente scored for Juventus, which conceded a comical own goal.
"It's tough to be aggressive for the entire 95 minutes," Conte said. "But we can't allow ourselves to let up during this particular period. The minute our attention levels drop for a second, everything happens.
"It's not easy for anyone to win for three years in a row, but these lads are doing just that. Everyone has surprised me in a positive manner, and I hope they keep doing so."
Napoli remained four points behind Roma after beating lowly Sassuolo 2-0.
"We created several chances to score, I can't be anything other than happy," Napoli coach Rafa Benitez said. "I never talk about individuals, but I see (Marek) Hamsik is improving game after game."
Earlier, Catania pulled off a surprise 3-1 victory over Lazio to move off bottom spot.
Also, it was: Genoa 3, Udinese 3; Atalanta 0, Parma 4; and Cagliari 1, Livorno 2.
Juventus took the lead in the 18th minute when Asamoah curled a powerful effort into the far side of goal from just outside the area.
The Serie A leader doubled its advantage 11 minutes later. Chievo goalkeeper Michael Agazzi did well to parry Andrea Pirlo's free kick but Marchisio was on hand to net the rebound.
Juventus had squandered a two-goal lead to draw 2-2 at promoted Hellas Verona last week and it risked falling foul of another Verona team after a sluggish start to the second half.
Chievo pulled one back six minutes after the break as Stephan Lichtsteiner's attempted clearance ricocheted off teammate Martin Caceres and into the back of the net.
However, Llorente sealed the match in the 58th when he headed home Pirlo's corner.
Juventus has scored three or more goals in all but one of its past nine home matches.
Roma kept up the pressure on Juventus with a comfortable victory in the evening match.
Two sections of the Stadio Olimpico were closed in the first of a two-match punishment following anti-Neapolitan chants by Roma's fans during an Italian Cup match earlier in the month.