Kichenok and former French Open singles champion Ostapenko did not drop a set en route to winning their first Grand Slam doubles title as a team.
Novak Djokovic begins his hunt for a fifth Flushing Meadows crown when he meets Moldovan Radu Albot
Images from the US Open women's singles semi-finals at Flushing Meadows on Thursday.
Those deep runs have left her better equipped to handle the pressure at the business-end of the majors.
Swiss tennis great Roger Federer said on Tuesday that anti-doping authorities have questions to answer about a perceived double standard applied to world number one Jannik Sinner after he dodged a suspension despite two positive tests earlier this year.
Jannik Sinner will hope to block out a rocking home crowd on Sunday when he faces Taylor Fritz in the US Open final at Flushing Meadows, where the 12th seed will be bidding to become the first American man in 21 years to win a Grand Slam singles title.
The five-time Grand Slam winner said Pegula was a worthy winner.
'The romanticism of late night tennis in New York, it's time to move past that'
Poland's world number one Iga Swiatek swatted aside 25th seed Anastasia Pavlyuchenkova 6-4, 6-2 with a near-flawless performance to reach the round of 16 for a fourth straight year at the U.S. Open on Saturday.
China's Zheng Qinwen is bidding to become the fourth woman to win Olympic gold and the US Open title in the same year
Frances Tiafoe sees huge strides for American men after another deep US Open run. The ebullient fan favourite was already looking to the future.
The celebrities who graced the men's and women's singles finals at Arthur Ashe Stadium on the weekend.
Novak Djokovic's bid for a record 25th Grand Slam title kicked off on Monday with an easy win over qualifier Radu Albot in the US Open first round.
Alcaraz, winner of the last two Grand Slams at Roland Garros and Wimbledon, had made it to at least the quarter-final stage at every major in which he has competed since winning the US Open two years ago.
Images from the US Open women's singles first round matches, at Flushing Meadows, New York, on Tuesday.
The 30-year-old said she was more nervous before facing world number one Iga Swiatek in the quarter-finals, a match she won in straight sets.
Novak Djokovic aims to win a record 25th Grand Slam and become the first US Open champion to successfully defend his title since Swiss great Roger Federer in 2008.
Serena Williams set Flushing Meadows abuzz on Saturday as the 23-time major winner appeared at the US Open - as a fan
Tiger-tattooed Aryna Sabalenka clawed her way back from injury and disappointment to hoist the US Open trophy at last.
'I had some nerves but if you want to beat one of these guys you have to be unbelievably calm and keep your head there.'
Thiem said he had no regrets retiring at 30.
Images from the US Open men's singles semi-finals at Flushing Meadows, New York, on Friday.
Images from the US Open men's singles quarter-finals at Flushing Meadows, New York, on Tuesday.
Images from the men's singles Round of 16 matches at the US Open on Monday.
Images from the US Open men's singles third round match at Flushing Meadows, New York, on Friday.
Images from the US Open men's singles final between Jannik Sinner and Taylor Fritz, at Flushing Meadows, New York, on Sunday.
Leander Paes, Sania Mirza, and Mahesh Bhupathi have left their mark by collectively winning 10 US Open titles.
Nick Kyrgios is providing commentary by the court for ESPN and trading barbs with critics on social media. The Australian has not been shy to express an opinion.
Images from the US Open women's singles quarter-finals at Flushing Meadows, New York, on Tuesday.
Images from Monday's Round of 16 women's singles matches at the US Open.
Carlos Alcaraz will be backed to extend his winning run at the Grand Slams to 16 matches following triumphant French Open and Wimbledon campaigns.
Contenders lurk around every corner in New York, as a gruelling year has left the title vulnerable for those hoping to capture a maiden major title.
Images from the US Open women's singles second round matches, at Flushing Meadows, New York, on Wednesday.
Images from the US Open women's singles second round matches, at Flushing Meadows, New York, on Thursday.
Images from the US Open women's singles quarter-finals at Flushing Meadows on Wednesday.
Fourth seed Alexander Zverev will play Brandon Nakashima as the former finalist looks to end his long wait for a maiden Grand Slam title.
Images from the US Open men's singles second round matches, at Flushing Meadows, New York, on Thursday.
Images from the US Open men's singles quarter-finals at Flushing Meadows, New York, on Wednesday.
The unpredictable nature of the 2024 US Open has turned it into one of the most thrilling Grand Slam tournaments in recent memory.
World number one Jannik Sinner's bid for a second Grand Slam title continued to gain momentum as he thumped Christopher O'Connell 6-1, 6-4, 6-2 on Saturday to reach the US Open fourth round.