Carlos Alcaraz is currently in Murcia preparing for the Monte Carlo Masters.
After starting the year on a 16-match win streak, Alcaraz has lost two of his last three matches and is looking to bounce back at his first clay-court tournament of the year.
The Spaniard’s biggest challenger at the event will likely be Jannik Sinner, who has been in rampant form, winning Indian Wells and the Miami Open.
Will Jannik Sinner overtake Carlos Alcaraz and become world number one? 🤔
If so, when will he do it?
Despite Sinner’s recent form, Alcaraz should be considered the favourite heading into Monte Carlo.
By the time the event reaches its conclusion – no matter the result – Alcaraz will have tied a personal record of Jannik Sinner’s.
Carlos Alcaraz set to tie Jannik Sinner’s total weeks as world number one
Upon the conclusion of the Monte Carlo Masters on April 12, Carlos Alcaraz will have spent 66 total weeks as the world number one.
This will tie Jannik Sinner’s career total. Sinner recorded 66 consecutive weeks as the world number one between June 10, 2024 and September 7, 2025.
Sinner surrendered the world number one spot to Alcaraz when he lost to the Spaniard in the 2025 US Open final.
As for Alcaraz, his current streak as the world number one will also increase to 23 weeks following the Monte-Carlo Masters’ conclusion.
Both Alcaraz and Sinner have a long way to go if they wish to become the all-time leader for weeks spent as the world number one.
Novak Djokovic leads the chasing pack, having spent a record 428 weeks as the world number one.
Djokovic, now 38 years old, has also achieved a record eight year-end world number trophies.
| Player | Rank | Weeks at World Number One |
| Lleyton Hewitt | 10 | 80 |
| Stefan Edberg | 11 | 72 |
| Jannik Sinner | 12 | 66 |
| Carlos Alcaraz | 13 | 65 |
| Jim Courier | 14 | 58 |
| Gustave Kuerten | 15 | 43 |
If Alcaraz continues to hold the world number one spot through April and May, he will move into 11th on the all-time list, overtaking Stefan Edberg’s total of 72 weeks.
If the Spaniard continues his reign through the summer, he would overtake Lleyton Hewitt, who spent 80 weeks as the world number one.
Who has spent the most consecutive weeks at world number one?
Roger Federer holds the record for the most consecutive weeks as the world number one, having spent 237 straight weeks in the top spot between February 2, 2004 and August 17, 2008.
US Open champion Jimmy Connors is in second place with 160 consecutive weeks in the top spot.
Ivan Lendl lands in third. The Czech-American, a winner of seven Grand Slam titles, spent 157 weeks in the top spot between September 9, 1985 and September 11, 1988.
Novak Djokovic and Pete Sampras round out the top five, having spent 122 and 102 weeks in the world number spot, respectively.
