The U.S. Open sponsorships pivot from endorsement deals to immersive experiences changing the way brands market themselves to the biggest Grand Slam in tennis.

With Serena Williams competing at te 2026 US Open, celebrities like Kaia Gerber, Homer Gere, Savannah Guthrie, Anna Wintour, Tory Burch and more attended tennis matches.

Serena Williams, Kaia Gerber, and Anna Wintour are all attending the 2026 US Open — proving this tennis tournament also has a fashionable side.