Novak Djokovic beat David Ferrer 6-2 6-1 to win the World Tennis Championship exhibition in Abu Dhabi.
World number one Djokovic followed up his semi-final win over Roger Federer to claim the $250,000 (£161,000) prize.
Djokovic will now prepare for the defence of his Australian Open title. The tournament starts in Melbourne on 16 January.
Earlier, Spain's world number two Rafael Nadal beat Federer 6-1 7-5 in the third-fourth place play-off.
Ferrer, who beat Nadal in the semi-finals, had his serve broken five times by Djokovic and went 3-0 down in each set before succumbing to defeat.
Djokovic finished the match with consecutive aces and said it was not impossible to repeat his tremendous feats from 2011 in the coming twelve months.
"I think, yes. Nothing is impossible, if you believe.
"I think the crucial couple of weeks is now, for me to prepare for Australia. We'll see. It's a long year and a difficult task, but I'm looking forward to it."
Meanwhile, Nadal and Federer will next play in the season-opening Qatar Open, which starts on 2 January.
The Spaniard, winner of 10 Grand Slam titles, is nursing a sore shoulder, but looked impressive against his long-time rival Federer.
"It was a positive match," he said. "I played better than yesterday and that was the most important thing."
Federer played down his two defeats in Abu Dhabi, saying the time spent on court will serve him well ahead of his first tournament of the new season in Qatar.
"It's about getting ready and feeling fine out there and enjoying a great atmosphere here and having the chance to play world-class players," Federer said.
"Obviously I could tell Novak and Rafa are playing really well. That is not a surprise to me. I expected them to be in good shape for next year and they proved that to me this weekend."