ATP Tour

Sinner’s 2026 season: Masters 1000 glory, return to No. 1 & more

Jannik Sinner brought his 2026 season to an early end this week, confirming that he is undergoing treatment for his ongoing knee injury. The Italian’s final 2026 appearance came in July at Wimbledon, where he captured the title.

Even with his season curtailed by injury, Sinner had already put together a remarkable string of victories. The 24-year-old Italian claimed six tour-level titles and notched a 44-3 record, according to the Infosys ATP Win/Loss Index.

ATPTour.com looks back at the defining moments of Sinner’s 2026.

Masters 1000 dominance
Sinner’s defining achievement of 2026 came at the ATP Masters 1000 level. The Italian won the season's first five Masters 1000 events — Indian Wells, Miami, Monte-Carlo, Madrid and Rome — compiling 29 consecutive victories while dropping just three sets. With his triumph in Rome, Sinner became the first player to win the first five Masters 1000 events of a season and just the second man, after Novak Djokovic, to complete the Career Golden Masters.

The 24-year-old also set a record for consecutive sets won at the level, taking 37 in a row from the second round in Paris last year through the third round in Monte-Carlo in 2026. The Italian is currently riding a 34-match winning streak at the Masters 1000 level, the longest in history.

Defeated Alcaraz in their lone meeting of 2026
After facing each other six times in 2025, Sinner and Alcaraz squared off only once in 2026. The Italian and Spaniard met at the Rolex Monte-Carlo Masters in April, with the title on the line. Sinner overcame Alcaraz 7-6(5), 6-3 to claim the Monte-Carlo crown. With the victory, Sinner improved to 7-10 in the pair’s Lexus ATP Head2Head series.

Watch highlights from the Sinner vs. Alcaraz Monte-Carlo final:

Return to World No. 1 in the PIF ATP Rankings
Following his championship match triumph against Alcaraz in Monte-Carlo, Sinner reclaimed the No. 1 spot in the PIF ATP Rankings from the Spaniard. Sinner first surrendered the No. 1 ranking to Alcaraz after their 2025 US Open final, before briefly returning to the summit following his title run at the Rolex Paris Masters. The Italian then ceded the position back to Alcaraz at the start of the Nitto ATP Finals. With his Monte-Carlo victory, Sinner once again moved ahead of his rival, beginning his 67th week atop the PIF ATP Rankings.

Second Wimbledon title
Sinner added a major crown to his 2026 season on the lawns of SW19, where the defending champion defeated Alexander Zverev 6-7(7), 7-6(2), 6-3, 6-4 in the Wimbledon final to clinch his second Wimbledon title and fifth Grand Slam trophy. The Italian defeated Miomir Kecmanovic, Nuno Borges, Jenson Brooksby, Shintaro Mochizuki and Jan-Lennard Struff before cruising past seven-time champion Djokovic in the last four and Zverev in the final. With the victory, Sinner also earned his 100th Grand Slam win, becoming the eighth active player to reach that milestone.

^{_{Jannik Sinner with the Wimbledon trophy. Photo: Corinne Dubreuil/ATP Tour.}}

Broke into the Top 10 of weeks at No. 1
In a season filled with trophies, Sinner also reached a significant PIF ATP Rankings milestone. The Monday following this year's Wimbledon final, the Italian began his 81st week as the World No. 1, moving into 10th place on the all-time list for most weeks spent atop the rankings. The 24-year-old has now reached 92 weeks at No. 1, putting him just behind Andre Agassi (ninth with 101 weeks) and Bjorn Borg (eighth with 109 weeks) on the all-time list.

Read more from Sinner's 2026 season:
Sinner completes Career Golden Masters
Sinner joins Federer & Djokovic in hard-court history books
Sinner wins Miami, becomes first man since Federer to complete Sunshine Double
Sinner joins Nadal with historic clay Masters 1000 sweep
Sinner breaks Djokovic's record for longest ATP Masters 1000 winning streak
Sinner successfully defends SW19 crown, defeats Zverev