Bianca Andreescu defeated Serena Williams in the final, 6–3, 7–5 to win the women's singles tennis title at the 2019 US Open. It was her first major title. Andreescu was the first Canadian, as well as the first player born in the 2000s, to win a major singles title. She was the youngest player to win the title since Svetlana Kuznetsova in 2004, and the first woman to win the US Open on her main draw debut. This was the first time a player won a major on their debut appearance since Monica Seles won the 1991 Australian Open. In addition, Andreescu tied Seles’ Open Era record of the shortest time from major debut to winning a title, winning on her fourth major appearance (a record broken just two years later by Emma Raducanu, who won on her second major appearance). The final was a rematch of the Canadian Open final four weeks prior, also won by Andreescu. This was the largest age gap (18 years) between two women's major finalists in the Open Era. With the win, Andreescu entered the top 5 in rankings for the first time.

Naomi Osaka was the defending champion, but lost to Belinda Bencic in the fourth round.

This marked the first time that the tournament's draw included eight former champions: Osaka, Sloane Stephens, Angelique Kerber, Serena Williams, Samantha Stosur, Maria Sharapova, Kuznetsova, and Venus Williams.

In reaching her 33rd and last career major final, Serena Williams set a new record for the longest gap between a player's first and last major final appearances, her first being twenty years prior at the 1999 US Open. She also equaled the record for the most match wins at the US Open, held by Chris Evert (101 wins).

Despite losing in the fourth round, Ashleigh Barty regained the world No. 1 singles ranking from Osaka. In addition to Barty and Osaka, Karolína Plíšková and Simona Halep were also in contention for the top ranking.

This tournament marked the first US Open appearances of future 2022 and 2026 champions and world No. 1s Iga Świątek and Elena Rybakina, who lost in the first round to Anastasija Sevastova and Karolína Muchová, respectively. It was also the first US Open appearance for future 2023 champion Coco Gauff, who lost in the third round to Osaka. This tournament also marked the final US Open appearances of former world No. 1 and 2006 champion Sharapova and former world No. 2 and 2004 champion Kuznetsova. Both lost in the first round, to Serena Williams and Kristie Ahn, respectively.

Seeds Seeding per WTA rankings.

Qualifying

Draw

Finals

Top half

Section 1

Section 2

Section 3

Section 4

Bottom half

Section 5

Section 6

Section 7

Section 8

Championship match ratings 3.219 million watched on ESPN in the US.

In Canada, preliminary data from Numeris showed a combined average audience of 3.4 million viewers on TSN and RDS, in English and French, respectively. Canadian viewership peaked at 5.3 million viewers at 5:59pm during the second set.

Championship match statistics Category Andreescu S. Williams 1st serve % 45/68 (66%) 34/77 (44%) 1st serve points won 29 of 45 = 64% 25 of 34 = 74% 2nd serve points won9 of 23 = 39%13 of 43 = 30% Total service points won38 of 68 = 55.88% 38 of 77 = 49.35% Aces 5 9 Double faults 3 8 Winners 19 33 Unforced errors17 33 Net points won 5 of 8 = 63% 9 of 11 = 82% Break points converted 6 of 13 = 46% 3 of 8 = 38% Return points won 39 of 77 = 51% 30 of 68 = 44% Total points won 77 68Source

References

External links Women's Singles main draw 2019 US Open – Women's draws and results at the International Tennis Federation