TURIN, Italy -- Novak Djokovic ended the year just as he started it -- by setting records.
The top-ranked Djokovic won a record-breaking seventh ATP Finals title on Sunday with a straight-sets victory over home favorite Jannik Sinner.
Djokovic took 1 hour, 43 minutes to win 6-3, 6-3 as the Serbian continues to reach new heights at age 36.
He started 2023 with a record-extending 10th Australian Open title and went on to win his 23rd Grand Slam tournament at the French Open, breaking Rafael Nadal's mark. Djokovic, who lost the Wimbledon final to Carlos Alcaraz, also won the US Open.
"One of the best seasons I've had in my life, no doubt," Djokovic said. "To crown it with a win against a hometown hero in Jannik, who has played amazing tennis this week, is phenomenal."
Djokovic entered Sunday's final tied with Roger Federer on six titles at the season-ending tournament for the year's top eight players.
He stretched out his arms and beamed broadly after clinching his seventh when Sinner double-faulted.
The victory had echoes of the clinical way Djokovic dispatched second-ranked Alcaraz in Saturday's semifinal encounter.
"I'm very proud of the performances these last two days against Alcaraz and Sinner, probably the best two players in the world next to me and Medvedev at the moment, and the way they have been playing I had to step it up," Djokovic said.
"I had to win the matches and not wait for them to hand me the victory and that's what I've done. I think I tactically played different today than I have in the group stage against Jannik, and just overall it was a phenomenal week."
It was his fourth win over Sinner, who had recorded a first-ever victory against Djokovic in the group stage in Turin and was the first Italian to reach the final.
But Djokovic was in imperious form Sunday and won 14 straight points from the end of the first set to the third game of the second to leave him firmly in control and subdue the Turin crowd.
Djokovic had already secured the year-end No. 1 ranking for a record-extending eighth time by winning his opening match at the ATP Finals.
After this tournament, Djokovic will become the first player to hold the No. 1 ranking for 400 weeks, with Roger Federer at 310 the only other man to eclipse the 300-week mark.
It was also only the second time in the past 15 years that a player has made the finals of all four Grand Slam tournaments and the ATP Finals. The previous occasion was when Djokovic did it in 2015.