Serena Williams equalled the women’s record for most matches won at grand slams but she was far from happy.
Playing as music glamour couple Beyonce and Jay Z watched on from her players’ box, the world No.1 looked rather displeased with herself at times, including when she shook her head and smirked on the way to the net for a post-victory handshake.
“I just think it should have been a different scoreline for me. I feel like I made a lot of errors,” Williams said.
“But, you know, there’s nothing I can do about that now. What really matters is I got the win. Hopefully I’ll just get better.”
Really? This performance didn’t seem OK?
After all, Williams delivered 13 aces with and compiled a 38-4 edge in winners. She only dropped six games and needed all of 65 minutes to win.
“I just didn’t have a great day,” was her assessment.
There were some issues, including 28 unforced errors and an off night returning serves, she won only 13 of 40 points on King’s first serve.
King noticed Williams’ negative body language as she headed to the net.
“I think Serena’s a perfectionist. She always wants to play her best. … If she doesn’t play really well, she’s always a little bit hard on herself,” King said.
Williams still managed to tie Martina Navratilova’s professional-era women’s record with her 306th career victory in grand slam matches.
Williams beat Vania King 6-3 6-3 to reach the US Open’s third round.
Another win when she takes on Swede Johanna Larsson in the third round and Williams will equal the all-time number of wins at the majors.
Only Roger Federer, with 307, has won more grand slam matches than Williams in the Open era, which dates back to 1968.
Equally impressive was her older sister Venus, who stayed on track for a possible semi-final clash with Serena by sprinting past German Julia Goerges to reach the third round.
Venus, 36, relied on her big serve throughout the match, posting a 6-2 6-3 victory over the German.
Venus Williams, the US Open winner of 2000 and 2001, was runner-up to top seed Martina Hingis as an unseeded player in the inaugural year of Ashe Stadium and 19 years later finished the first US Open day session played entirely under a roof.
“1997 was a long time ago,” Williams said on court after her victory.
“I’m so grateful to be here still playing, still winning matches and I can’t wait for the next round.”
The elder Williams sister will next play 26th seed Laura Siegemund of Germany.
Earlier on day four Romanian fifth seed Simona Halep advanced to the third round with a 6-3 6-4 win over Lucie Safarova in the first full match played under a closed roof at Arthur Ashe Stadium.
“It was a little bit (of an adjustment),” Halep said about playing under the roof.
“But I had the chance to warm up in the morning before the match.
“I don’t want to say anything bad because it wasn’t bad. Had a nice feeling.
Halep will play Hungary’s Timea Babos in the third round.
Also advancing to the third round is Polish fourth seed Agnieszka Radwanska, who beat Briton Naomi Broady 7-6 (11-9) 6-3.
Radwanska will now face French 25th seed Caroline Garcia.
Australia’s Sam Stosur wasn’t the only seed to bow out, Swiss 15th seed Timea Bacsinszky fell to unseeded American Varvara Lepchenko 6-4 4-6 6-4.