India, Sept. 8 -- Exit interviews at a Grand Slam are usually defined by raw anguish, agonizing over missed opportunities, and the heavy burden of defeat. But following her 6-1, 6-4 fourth-round loss to Elena Rybakina at the US Open, Naomi Osaka sat in front of the press corps carrying an entirely different energy: profound tranquility.

The former champion's run at Flushing Meadows came to a definitive halt against the blistering power of the second-seeded Kazakh. Rybakina raced through the opening set in just 22 minutes and kept Osaka pinned behind the baseline with deep, relentless hitting, ultimately sealing the 6-1, 6-4 victory in 66 minutes to book a quarterfinal spot.

Yet, when asked afterwards if she was disappointed by how her t...