NEW YORK - The U.S. Open will expand its main draw to 15 days, the United States Tennis Association (USTA) said on Wednesday, kicking off a day earlier than the usual Monday opener for the tournament's first weekend start in the Open Era.

The U.S. Open is expanding to 15 days this year as it shifts to a Sunday start for the first time in the Open era.

The 2025 U.S. Open will look a little different this year as the major tournament will begin on a Sunday for the first time in the Open Era, which began in 1968. The final major tournament on the year will start on Sunday, August 24 instead of beginning on the Monday.