Alcaraz to Match Sinner's Number One Weeks After Monte Carlo Masters

Carlos Alcaraz is currently in Murcia, preparing for the Monte Carlo Masters, his first clay-court tournament of the year. After starting the year with a 16-match win streak, Alcaraz has lost two of his last three matches and is looking for a strong performance in this tournament. His biggest challenger will likely be Jannik Sinner, who has been in great form, winning Indian Wells and the Miami Open.

Alcaraz, despite his recent performance, is considered the favorite heading into Monte Carlo. The outcome of the tournament will determine if Alcaraz matches Sinner's weeks at number one.

Upon the conclusion of the Monte Carlo Masters on April 12, Carlos Alcaraz will have spent a total of 66 weeks as the world number one. This will tie Jannik Sinner's career total, who spent 66 consecutive weeks at the top of the ranking, between June 10, 2024, and September 7, 2025. Sinner lost the number one spot to Alcaraz after losing to the Spaniard in the 2025 US Open final.

Alcaraz's current streak as number one will also increase to 23 weeks after Monte Carlo, solidifying his position in the rankings.

Both Alcaraz and Sinner have a long way to go if they wish to become the all-time leader in weeks at number one. Novak Djokovic leads the list, with a record of 428 weeks at the top of the ranking. Djokovic, now 38, also holds the record for eight year-end number one trophies.

If Alcaraz holds the number one spot through April and May, he will move to 11th on the all-time list, surpassing Stefan Edberg, who has 72 weeks. If the Spaniard continues his reign through the summer, he would overtake Lleyton Hewitt, who spent 80 weeks as number one.

Roger Federer holds the record for the most consecutive weeks at number one, with 237 straight weeks at the top, between February 2, 2004, and August 17, 2008. Jimmy Connors is in second place with 160 consecutive weeks. Ivan Lendl is in third place, with 157 weeks at the top, between September 9, 1985, and September 11, 1988.

Novak Djokovic and Pete Sampras round out the top five, with 122 and 102 weeks at the top of the ranking, respectively.