Carlos Alcaraz falls to dialed-in Cameron Norrie in Paris Masters opener 

For the first time in his last four tournaments, Carlos Alcaraz will not be named champion. The world No. 1 was ousted by a dialed-in Cameron Norrie in a topsy-turvy Rolex Paris Masters opener, 4-6, 6-3, 6-4.

The 22-year-old followed up a relatively routine opening set with an error-strewn performance. He racked up 19 unforced errors and struck just eight winners in the second set, with 31st-ranked Norrie gladly capitalizing on the opportunities. Alcaraz would hit 54 unforced errors in all across nearly two and a half hours on Court Central.

"I just didn't feel well today. A lot of mistakes," Alcaraz told press afterward. "I had no feeling at all. I think Norrie played really great tennis today, as well. Solid match. And I think that was the key.'

👉 HOW IT HAPPENED: Watch the replay of Norrie's upset on the Tennis Channel app

Great Britain’s second-highest ranked player closed out the match emphatically, serving out the biggest victory of his career—and his first over a world No. 1.

“Coming back with my injury, I lost first round of qualies here last year," Norrie said in an on-court interview. "...To get a win like this—the biggest win of my career, my first win over a world No. 1…

"I’m so pleased with the way I did it... I was able to stay tough and get the win.”

The result snaps Alcaraz’s 17-match winning streak at the ATP Masters 1000 level—a run dating back to April, since his Monte Carlo second-rounder. During that period, he had also reached nine consecutive finals, and won his previous three tournaments—Cincinnati, the US Open and Tokyo, with Laver Cup in between.

Norrie improves to 3-5 in his head-to-head against Alcaraz. The lefty previously posted victories over the Spaniard in the 2023 Rio de Janeiro final on clay and in the 2022 Cincinnati Open quarterfinals. Alcaraz had clinched their most recent meeting, in the quarterfinals of Wimbledon on his way to the championship match earlier this year.

Before taking the court in Paris, Alcaraz said amount of mandatory tournaments on the calendar is “too high”—an increasingly common refrain for top players in the latter half of the season.

Read More: Carlos Alcaraz: "The amount of tournaments that we have to play I think is too high"

“They have to do something with the calendar," Alcaraz said ahead of his 16th tournament this year. "The amount of tournaments that we have to play I think is too high. We don't have such, you know, good period of time that we can practice, we can rest.

"Even during the season, I think it's week after week after week and we don't have the chance to have a week just to prepare pretty well the tournaments or what we have ahead in the season."

Norrie will face the winner of Arthur Rinderknech and Valentin Vacherot, a rematch of the Rolex Shanghai Masters final between cousins, in the third round.