Khris Middleton led Milwaukee with 23 points as the Bucks easily defeated Atlanta 112-86 on Friday night.
Milwaukee got the win despite missing Giannis Antetokounmpo, who rested for injury.
Brook Lopez had 19 points and Ersan Ilyasova added 18 for Milwaukee, now 28-5 on the season.
Atlanta got 20 from Allen Crabbe off the bench to lead the Hawks' effort.
Milwaukee takes on Orlando on Saturday.
Entering Saturday, the Bucks had a four-game lead for the Eastern Conference's top record ahead of Boston and Miami. Milwaukee also has a three-game lead for the best record in the NBA over the Los Angeles Lakers.
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Video: NBA, Fox Sports Wisconsin