Jannik Sinner has had quite a career so far, right? Let’s just talk about 2025. Six titles, two majors, and a 58-6 win-loss record. But those aren’t the only numbers that define him. The Italian is currently ranked World No. 2 after spending 65 weeks at the top spot. He also cashed out a fortune in prize money. And Rennae Stubbs, who coached Serena Williams during the 2022 US Open, couldn’t help but notice a stark payday difference between generations…

“You made an interesting stat, Jannik Sinner won $18 million this year,” Stubbs’ co-host Caitlin pointed out on The Rennae Stubbs Podcast.

That’s when Stubbs made a comparison that many might have missed.

“Everybody knows Steffi Graf,” Stubbs said. “Won $19 million in her career, her entire career, and you know how many major titles she won? 22. So just take that and just lock that in the bank and think, ‘Wow, how lucky these players are to be playing the sport that they’re playing now, when Steffi Graf, who won not only just you win 22 Grand Slams, but won like I don’t know, well, over 60 tournaments,’ probably I’d look it up, but.”

She’s not wrong.

The German legend collected 107 career titles and an unbelievable 22 Grand Slams. When she retired in 1999, she’d earned about $21.9 million in prize money. That was a massive total for an era when tournament purses were nowhere near what they are today. What about Sinner, though?

Jannik Sinner is redefining success in modern tennis. The 24-year-old star already has four Grand Slam titles to his name. His breakthrough came at the 2024 Australian Open, followed by a brilliant run to the US Open crown later that year. Then came 2025, when Sinner reached a whole new level.

This season, he didn’t just defend his Australian Open title. He made history. Sinner became the first Italian to win Wimbledon after a powerhouse performance on Centre Court. He also finished runner-up to his rival Carlos Alcaraz at the French Open, then came up just short again at the US Open.

That runner-up finish in New York still brought in a hefty $2.5 million. Not a bad “consolation” for a player who keeps stacking up milestones.

Sinner’s overall net worth hit $40 million in 2025, according to Celebrity Net Worth.

Much of that came from his jaw-dropping run of 13 straight tournament wins between October and November 2024, which alone earned him $12 million.

Add in high-profile deals with Nike, Head, Rolex, Panini, Gucci, Lavazza, Intesa Sanpaolo Assicura, and FastWeb S.p.A., and it’s no wonder reports say he cleared over $15 million in sponsorships.

But as Sinner’s prize money skyrockets, so does the financial scrutiny, and a recent run-in with ATP tour policy shows that earning big money comes with big obligations.

Jannik Sinner and his rival face repercussions after breaking ATP rules

On November 28, tennis fans did a double-take when reports broke that Alcaraz and Sinner were facing a major financial setback.

The faces of tennis’ new era found themselves in the middle of an off-court storm that had nothing to do with their shot-making or ranking points. It all came down to One Vision, the ATP’s 2023 program that promised big end-of-year rewards to players who consistently showed up at the sport’s biggest tournaments.

The 30 players with the most points from Masters 1000 events and the ATP Finals share a $21 million prize pool at the end of the season. Alcaraz was due to collect $4.8 million, but that number dropped to $2.4 million after penalties kicked in. How come?

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The ATP cuts 25% from a player’s bonus for every Masters 1000 event they skip.

The Spaniard missed both the Canadian Open and the Shanghai Masters, costing him dearly. He did skip Madrid, too, but because he was in the city doing media and sponsor duties, that one was forgiven.

Jannik Sinner’s situation stung even more. The world No. 2 missed Indian Wells, Miami, Madrid, and the Canadian Open, which wiped out his entire bonus.

Four absences equal a 100% reduction, leaving him with nothing from the pool. The ATP’s formula includes a 70% fixed share and a 30% variable share, rewarding presence as much as performance and punishing players who skip too often.

There’s also a smaller bonus pool for the ATP 500 events worth $3 million, where attendance still matters. In that race, Alcaraz came out on top. The Spaniard banked an extra $1 million after earning 1,930 points to lead the standings, adding a lovely silver lining to his season.

The ATP, though, has made its point loud and clear. The Masters 1000 events are the backbone of the season, and the rules leave no room for exceptions.

Heading into 2026, Jannik Sinner will no doubt keep that in mind as he eyes a third straight Australian Open title and another run at Wimbledon.