Golden State star players Stephen Curry and Andrew Wiggins put on a high-scoring show to put the Warriors a step closer to the NBA Finals with a 109-100 victory over the Dallas Mavericks on Sunday.

The clinical Warriors performance on the road in Dallas gives Steve Kerr's team a commanding 3-0 lead in the best-of-seven Western Conference finals series.

No team in the 75-year history of the NBA has ever successfully overturned a 3-0 series deficit in the playoffs.

Curry led the scoring for the Warriors with 31 points, 11 assists and five rebounds while Wiggins was exceptional with 27 points and 11 rebounds.

Klay Thompson also came up big with 19 points while Draymond Green and Jordan Poole added 10 points apiece.

Luka Doncic once again delivered a monumental display for Dallas with 40 points, but the Slovenian star will need to conjure something even more miraculous to prevent the Warriors from advancing to an NBA finals showdown against either Boston or Miami.

"That was just a great team win," Curry said afterward.

"When you're up 2-0 and you win on the road, it gives you a stranglehold and control of the series. That's huge.

"We obviously know that the job's not done, but it's a good feeling to know that we can play with house money on Tuesday (in game four) and try and get the job done."

Warriors coach Kerr paid tribute to Curry's performance.

"Steph was brilliant tonight. His conditioning level is amazing," Kerr said.

"He's out there flying around defensively and then playing at such a high level on the offensive end. It's remarkable to watch him play."

Doncic defiant

Doncic meanwhile refused to concede that a Warriors series victory will now be a formality.

"It's not over yet, but it's not going to be easy," Doncic said. "The Warriors are not going to give you anything easy.

"Nobody had us being here in these Conference Finals. But I think the Warriors are playing incredible. Everybody knows their role.

"Everybody just stays together. They've been together for a long time, and I think they're playing good basketball, so that's what I think is going to be really difficult.

"These past three games it's been very difficult."

After taking a 48-47 halftime lead, the Warriors took a decisive grip on the game in the third quarter.

Curry drained 11 points as the Warriors outscored Dallas 30-21 in the third to lead by 10 heading into the fourth at 78-68.

That margin proved to be enough as the Warriors maintained their composure during the fourth quarter to keep the Mavs at arm's length.

Wiggins produced a highlight-reel-worthy moment mid-way through the final quarter with a monstrous one-handed dunk over Doncic.

The bucket was initially ruled out for an offensive foul but Warriors coach Kerr successfully challenged the call to leave the Warriors 10 points clear at 93-83.

"It was an amazing dunk," Kerr said afterward. "I was surprised at the call but glad we had the challenge left."

Soon afterward Wiggins punished a rash challenge from Doncic to claim three free throws and leave Golden State 102-89 ahead with just over four minutes remaining.

There was a nervous moment for Golden State when Spencer Dinwiddie nailed a 3-pointer with just over a minute remaining to make it a five-point game at 104-99.

But the Warriors' response was ruthless, Poole making a soul-destroying 3-pointer to restore Golden State's eight-point advantage and effectively ice the game with 54 seconds left on the clock.

Game four in the series takes place in Dallas on Tuesday.