Trae Young helped the Atlanta Hawks regain the advantage in their first-round series against the New York Knicks, who saw Julius Randle endure another playoff outing to forget in Game 3.

Point guard Young led his team with 21 points as all five of Atlanta's starters reached double figures in a 105-94 triumph on Friday.

His eight-for-19 shooting performance was supplemented by 14 assists, making the 22-year-old just the third player since the merger with 80 or more points and at least 30 assists in his first three career playoff games, a feat also achieved by Kevin Johnson and Chris Paul.  

"I feel like I've prepared my whole life for these days, these moments," Young said after helping his team go 2-1 up in the best-of-seven series in the Eastern Conference.

However, it was the defensive effort that was the bedrock for Atlanta's victory, including keeping the struggling Knicks to just 13 points in the second quarter.

The visitors were unable to claw back the deficit after trailing 58-44 at half-time, not aided by Randle remaining cold on offense.

The 26-year-old made just two of his 15 attempts in total, with both successes coming from beyond the arc. He became the first Knick to go 0-for-eight or worse on two-point shots in a playoff game since Patrick Ewing did so 27 years ago.

Randle is now shooting 20.6 per cent on two-pointers across the series, making just seven of his 34 tries. It is the lowest success rate in a three-game span by any player with that many attempts in the past 30 postseasons.

His meagre offensive output is in stark contrast to his efforts in the regular season: Randle averaged a career-high 24.1 points per game to help the franchise end an eight-year playoff drought, while he became an All-Star for the first time.

For Knicks coach Tom Thibodeau, the key is reacting to the situation on each possession, particularly as Atlanta's ploy of sending two and three players at Randle is leaving others open elsewhere.

"They loaded up on him pretty good. When a team does that, when they put two or three guys on you, you've got to make the play," Thibodeau said in his post-game media conference.

"You've either got to get easy buckets in transition, or off drive-and-kick, you've got to keep moving around.

"He's seen a lot of that this year, but when you have a second and a third guy, that can make it tough. But that should lead to rebounding and open threes on the back side, so we've got to trust the pass."

He added: "The big thing is to get rid of the ball and make plays early. When you do that, you can usually get high-percentage shots. When you get the second defender on the ball, their responsibility is to get rid of it and make plays for their team-mates."

Game 4 of the series takes place in Atlanta on Sunday.