He also overtook his career-best 65-season win tally of 2023 with this win.
Jannik Sinner beat defending champion and Spanish second seed Carlos Alcaraz to win his first Wimbledon title.
While Jannik Sinner and French Open champion Carlos Alcaraz have won the last seven major titles between them, the Italian cautioned against complacency and pointed to the strength of competition in the ATP Tour.
Jannik Sinner became the first Italian to win the ATP Finals title following a dominant 6-4, 6-4 victory over American Taylor Fritz.
Even though he withdrew from his semi-final tie with Denis Shapovalov, Nadal's run to the last four in Paris saw him reclaim the number one spot from Novak Djokovic on Monday.
Roger Federer eased his way into the ATP World Tour Finals with a 6-1, 7-6 (0) defeat of Canadian newcomer Milos Raonic in his opening round-robin match on Sunday.
Tallon Griekspoor prevailed in a high-voltage three-set final against Benjamin Bonzi to win his maiden ATP World Tour title.
Australian Open champion Novak Djokovic has succeeded in his bid to stage an ATP tournament in his home town of Belgrade from 2009.
A mouthwatering finale to the season ended before it even began on Sunday when Roger Federer was forced to pull out prior to the ATP World Tour Final showdown with Novak Djokovic.
Roger Federer ended Grigor Dimitrov's seven-match winning streak and showed the Bulgarian he has some way to go to live up to his 'Baby Federer' tag with a 6-3 7-6 (2) quarter-final victory at the Basel Open on Friday.
Dominic Thiem stayed very much in the mix at the ATP World Tour Finals with a 6-3, 1-6, 6-4 victory over mercurial Frenchman Gael Monfils at the O2 Arena on Tuesday.
The Association of Tennis Professionals (ATP) has decided to increase the overall prize amount for the men's tennis tours, exceeding 100 million dollars for the first time in 2015.
Stuns World No 1 Djokovic to win 'biggest title of career'
Maria Sharapova was officially inducted into the International Tennis Hall of Fame on Saturday night in Newport
France's Boisson wins first WTA title in Hamburg
But the big question that keeps striking the mind is, if Indian tennis system can actually claim this win as its own. The answer is: partially.
Photos from the ATP World Tour Finals matches played in London on Monday
The 26-year-old has not always handled the expectations placed on his shoulders after he won the Wimbledon junior title in 2008 with a game style uncannily like Federer's.
Six-time champion Novak Djokovic has withdrawn from this year's Italian Open, organisers said on Tuesday.
Sweden's Robin Soderling will replace Andy Roddick in the ATP World Tour finals after the American pulled out with a knee injury on Tuesday.
The Spaniard's main rival, Roger Federer, picked the Stefan Edberg Sportsmanship prize for a record fifth successive year.
Novak Djokovic moved to the brink of his 100th tour-level title after recovering from a second-set blip to beat British qualifier Cameron Norrie 6-4, 6-7(6), 6-1 in the Geneva Open semi-finals on Friday.
The victory saw him move up by three places to stand only behind Spain's Rafael Nadal and Swiss star Roger Federer.
London's stunning 02 Arena will stage the ATP World Tour Finals for the seventh year in succession in 2015 but that will already be four too many, defending champion Novak Djokovic said on Monday.
In the earlier match, Zverev beat Cilic -- the Croat's 9th loss in 10-round robin matches in the Finals
Jannik and Carlos are the favourites at Flushing Meadows, but don't write these men off!
Japan's Kei Nishikori made a stunning start to what will surely be the first of many appearances at the ATP World Tour Finals with a 6-4, 6-4 win over home favourite Andy Murray on Sunday.
The tournament's once-robust pool of around 300 line judges has been cut to 80 and they will serve as "match assistants", who support chair umpires and step in should the ELC -- powered by more than 450 cameras -- fail in any of the 18 courts in use.
Novak Djokovic's 6-3, 6-4 demolition of the top-ranked Spaniard in the ATP World Tour Finals made him only the seventh player to win the year-end championship at least three times. We take a look at the players who preceded the Serb to the feat.
Top seed and defending champion Jannik Sinner, playing on his 24th birthday, ended French qualifier Terence Atmane's dream run at the Cincinnati Open with a 7-6(4), 6-2 win on Saturday to reach the final of the US Open tune-up event.
Carlos Alcaraz heads to the US Open in his now-familiar role as chief challenger to defending champion Jannik Sinner and the Spaniard will be driven this year by the twin pursuit of Grand Slam glory and the World No. 1 ranking.
Novak Djokovic said he is hoping to put the cherry on top of a successful 2023 season with a record seventh ATP Finals title, after the world number one beat Carlos Alcaraz in the semi-final to set up a showdown with Jannik Sinner.
Zverev and Shelton tested each other in a high-quality encounter before the world number three played a near flawless tiebreak to clinch the match in little over two hours and stretch his career win-loss record over the American to 3-0.
Novak Djokovic battled from a set down to clinch his 100th tour-level title by beating Polish sixth seed Hubert Hurkacz 5-7, 7-6(2), 7-6(2) at the Geneva Open on Saturday.
Alexander Zverev rallied from a set down to beat defending champion Alexei Popyrin in Toronto and move into the semi-finals.
Alex De Minaur rallied from a set down and saved three match points to claim the Washington Open title after beating Alejandro Davidovich Fokina in the final of the ATP 500 event.
One thing is beyond doubt after eight fabulous days of action at the ATP World Tour Finals -- tennis has found a spectacular new venue at London's space-age O2 Arena.
The world number one was virtually guaranteed a semi-final berth before walking on court at the O2 Arena, but made doubly sure by cruising past Tomas Berdych in little more than an hour.
Frenchman Jo-Wilfried Tsonga saved a matchpoint before beating world number six Tomas Berdych 3-6, 7-6, 6-4 in the Marseille Open final to claim his 10th ATP Tour title on Sunday.
With reports suggesting that Andy Murray, who finished the ATP year as world No 1 player, might be in line for a knighthood, the Briton has insisted that he is "too young" for the country's "highest honour." The 29-year-old, who beat Novak Djokovic in the ATP World Tour Finals on Sunday, has been tipped to be named in the New Year honours list.