Sinner, who lifted his first major at Melbourne Park by defeating Daniil Medvedev in the final, stretched his winning run in 2024 to 12 matches with a 7-5 6-4 victory over Alex de Minaur in the Rotterdam final on Sunday.
The 22-year-old’s second trophy of the season means he leapfrogged Medvedev to number three in the updated rankings on Monday.
“Every time you win a title, it doesn’t matter how big, it means a lot,” Sinner said.
“I had a bit more attention (as Australian Open champion), but when you earn something, you have to deal with that. I felt like I was trying to put 100% effort into everything I’ve done and that’s the result of this week.
It’s going to start again from zero at Indian Wells, so I’m already trying to improve. Let’s see what’s coming.”
Sinner will look to gain ground on world number two and defending Indian Wells champion Carlos Alcaraz in the hardcourt tournament next month.