Jannik Sinner triumphed over Carlos Alcaraz in the 2025 ATP Finals in Turin, extending his unbeaten run in the northern Italian indoor arena to two consecutive years. Throughout the 2025 season, both Sinner and Alcaraz dominated the tennis landscape, capturing all four Grand Slam titles and consistently outpacing the rest of the field. The future of men’s tennis is clearly in their hands. But who currently holds the edge in their head-to-head rivalry—and who is on track to finish their career as the ultimate champion?

Head-to-Head Results in 2025

Sinner and Alcaraz clashed six times in 2025—every encounter taking place in the final of a major tournament. These were not just ordinary matches; they were center-stage duels that defined the season:

Italian Open (Rome Masters) Final

Alcaraz defeated Sinner in straight sets to win the title.

French Open Final:

In a grueling five-set epic, Alcaraz saved a match point in the fourth set and eventually triumphed after more than five hours of play.

Wimbledon Final

Sinner ended Alcaraz’s 24-match winning streak and handed him his first loss in a Slam final.

Cincinnati Masters Final

Alcaraz won after Sinner was forced to retire due to illness while trailing 5–0 in the first set.

US Open Final

Alcaraz prevailed again in a tightly contested battle.

ATP Finals (Turin) Final

Sinner, on home soil, defeated Alcaraz in straight sets to cap off a perfect indoor season.

As of the end of 2025, Alcaraz leads their overall head-to-head 10–6. He also holds a 5–3 advantage in finals and leads 4–2 in Grand Slam matchups. Still, the rivalry remains close—and the balance continues to shift with each meeting.

Carlos Alcaraz’s Favorite Surface

While Carlos Alcaraz originally emerged as a clay-court prodigy, his most successful surface statistically is grass. With a winning percentage above 90% on grass, he currently boasts the highest grass-court win rate in the Open Era (among players with at least 20 matches played). By mid-2025, Alcaraz had compiled a 27–3 record on grass, including two Wimbledon titles and a Queen’s Club trophy.

His ability to take the ball early, his exceptional reflexes, and his all-court game give him a distinct edge on the fast-paced surface. Although he remains a formidable force on clay and hard courts (with win rates between 80–85%), grass has become his most statistically dominant arena—a surprising twist for someone who grew up on Spanish clay.

Jannik Sinner’s Favorite Surface

For Jannik Sinner, hard courts are clearly the most fertile ground for success. His flat, penetrating groundstrokes and surgical backhand are perfectly suited to fast surfaces, especially indoors. In 2024, Sinner posted an astonishing 53–3 record on hard courts, including an undefeated 13–0 run in indoor events. He won seven of his eight titles that year on hard courts and repeated his dominance indoors in 2025 with another title at the ATP Finals in Turin.

Although clay has historically been his weakest surface, Sinner has improved considerably—reaching the Roland Garros final in 2025 and pushing Alcaraz to five sets. Meanwhile, his grass-court game has evolved rapidly: after initial struggles, he claimed his first Wimbledon title in 2025 and had previously won in Halle in 2024. Still, indoor hard courts remain his true stronghold.

Who Can Break Novak Djokovic’s Records?

Novak Djokovic still holds the most prestigious records in men’s tennis:

Grand Slam titles: 24

Masters 1000 titles: 39

Weeks as World No. 1: 428

So, can either Sinner or Alcaraz realistically surpass these legendary benchmarks?

Grand Slams

By the end of 2025, Alcaraz had six Grand Slam titles, while Sinner had four. Considering Alcaraz is two years younger and started winning majors earlier, he appears slightly ahead in the race to challenge Djokovic’s 24. If either continues winning 1–2 majors per year over the next decade, surpassing 20 is certainly possible—though reaching or exceeding 24 will require an extended period of dominance.

Masters 1000 Titles

Alcaraz had already claimed eight Masters titles by 2025, while Sinner stood at five. Both are consistently competitive at these events, but again, Alcaraz is a step ahead. However, Djokovic's total of 39 Masters titles is enormous. Unless one player dominates the circuit for years to come, it’s more likely that they’ll approach the 20s or low 30s, rather than break that record outright.

Weeks as World No. 1

This is perhaps the hardest mark to reach. To surpass 428 weeks, a player would need to spend more than eight total years at the top spot. Alcaraz and Sinner have already held the No. 1 ranking, but their rivalry might prevent either from maintaining long reigns. Unless one significantly pulls ahead, they may trade the top spot too frequently to reach Djokovic’s staggering number.

 

Carlos Alcaraz may currently lead the rivalry, both in match wins and Slam count. But Jannik Sinner has proven he’s capable of beating Alcaraz on the biggest stages—Wimbledon, the ATP Finals, and more. Both players have the tools, youth, and mentality to chase tennis immortality.

Whether either will break Djokovic’s records remains uncertain—but one thing is clear: their rivalry is already defining a new era in tennis. With each new chapter, the sport is being reshaped by two players who may, in time, stand shoulder to shoulder with the greatest legends the game has ever known.