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 US Open is expanding to 15 days this year, shifting to a Sunday start for the first time in the Open era that began in 1968.

The U.S. Open tennis major will expand its main draw to 15 days in 2025, beginning on a weekend for the first time in the Open era.