(Reuters) -The U.S. Open is a hardcourt Grand Slam organised by the United States Tennis Association. The tournament was first held in 1881 and originally known as the U.S. National Championships.
Here is what you need to know about the year's fourth and final major of the year:
WHEN IS THE 2025 U.S. OPEN HAPPENING?
* The 145th edition of the U.S. Open will run from August 24 to September 7.
WHERE IS IT TAKING PLACE?
* The U.S. Open is held in Flushing Meadows, New York.
* The three main showcourts are
the Arthur Ashe Stadium, Louis Armstrong Stadium and Grandstand.
* Arthur Ashe Stadium (capacity: 23,771) is named after the only Black man to win singles titles at Wimbledon, the U.S. Open and the Australian Open. He was also a prominent human rights activist.
* Louis Armstrong Stadium (capacity: 14,053) was named after jazz great Armstrong who lived a few blocks from the venue until he died in 1971. It was opened during the 2018 event to replace the 1978 stadium of the same name and has a retractable roof like the main showcourt.
* Grandstand (capacity: 8,125) was first used at the U.S. Open on August 29, 2016, the opening day of that year's tournament.
WHO IS PLAYING?
* The top-ranked players automatically enter the main draw, with 32 of them seeded to prevent early-round match-ups between top contenders. Seedings are based on ATP and WTA rankings.
* Italian Jannik Sinner, who won his fourth Grand Slam title at Wimbledon in July, is the men's world number one. He is chasing back-to-back U.S. Open titles.
* Belarusian Aryna Sabalenka, a three-times major winner, is the top-ranked women's player and the defending champion.
* Novak Djokovic will resume his bid for a record 25th Grand Slam singles title, while Spanish world number two and 2022 U.S. Open champion Carlos Alcaraz chases a sixth major crown.
* Organisers also hand out wildcards to local hopes and notable players who have dropped down the rankings.
* A new format in the mixed doubles was introduced this year, with the event featuring many big-name singles players. Italians Sara Errani and Andrea Vavassori retained their mixed doubles U.S. Open title on Wednesday, overcoming Iga Swiatek and Casper Ruud 6-3 5-7 10-6.
TOP 10 RANKED PLAYERS
Men:
1 Jannik Sinner
2 Carlos Alcaraz
3 Alexander Zverev
4 Taylor Fritz
5 Jack Draper
6 Ben Shelton
7 Novak Djokovic
8 Alex de Minaur
9 Karen Khachanov
10 Lorenzo Musetti
Women:
1 Aryna Sabalenka
2 Iga Swiatek
3 Coco Gauff
4 Jessica Pegula
5 Mirra Andreeva
6 Madison Keys
7 Zheng Qinwen (withdrawn)
8 Jasmine Paolini
9 Amanda Anisimova
10 Elena Rybakina
WHERE TO WATCH THE U.S. OPEN 2025 ON TV?
* Asia: CCTV, CJ ENM, Eclat SPOTV, JioStar, PCCW, Sportcast, TDM, WOWOW
* Africa: SuperSport, beIN Sports
* North America: ESPN, RDS, TSN
* South America: ESPN International, Globo (SporTV)
* Europe: Eurosport, Puls4, SRF/RSI, Sky Sports, Sportdeutschland, SuperTennis, Telefonica/Movistar
* Oceania: Digicel, Nine/Stan Sport
(Compiled by Pearl Josephine Nazare in Bengaluru; editing by Pritha Sarkar)