Sinner back at No. 1

Jannik Sinner moved back to World No. 1 after beating Carlos Alcaraz in the Monte-Carlo Masters final on Sunday. (atptour.com) The ATP Tour said Sinner will start his 67th week at No. 1 on Monday, April 13, with 13,350 ranking points to Alcaraz’s 13,240. (atptour.com) Sinner won the Monte-Carlo title, 7-6(5), 6-3, at the Monte-Carlo Country Club in Monaco, the first ATP Masters 1000 clay event of the 2026 season. (atptour.com, atptour.com, tennis.com) The ranking swing closed a gap that looked wide a month ago: entering Indian Wells, Alcaraz led Sinner by 3,150 points. The ATP said Sinner erased it by winning Indian Wells, Miami and Monte-Carlo in succession. (atptour.com) That made Monte-Carlo more than a clay-court final. The match decided both the title and the top spot in men’s tennis, with Alcaraz arriving as the defending champion and the sitting No. 1. (atptour.com, atptour.com) Sinner first reached No. 1 on June 10, 2024, and his first stint lasted 65 weeks before ending at the start of the 2025 Nitto ATP Finals, according to the ATP. (atptour.com) The ATP said only Roger Federer, Jimmy Connors, Lleyton Hewitt and Novak Djokovic had first stays at No. 1 that lasted at least a year before Sinner joined them. (atptour.com) Monte-Carlo also gave Sinner his first clay-court Masters 1000 title, adding a new surface marker to a run that has now put him back above Alcaraz by 110 points. (atptour.com, tennis.com) The next rankings will make the change official, but the message from Monaco was already clear on Sunday: Sinner left with the trophy and the top line next to his name. (atptour.com)