Halep, whose match began on Wednesday but was halted because of rain with Pavlyuchenkova ahead 4-3, returned to close out a three-hour battle during which she required treatment for what appeared to be blisters on the bottom of her right foot.
The Romanian world number one will have a quick turnaround as she is set to cap the evening session with a battle against seven-time Grand Slam winner Venus Williams, who will also not be fully rested after beating Sorana Cirstea 7-6(4) 6-4 in a match that was postponed from Wednesday.

Simona Halep of Romania reacts after scoring a point against Anastasia Pavlyuchenkova of Russia during day four of the Rogers Cup at IGA Stadium on August 9, 2018 in Montreal, Quebec, Canada.

Image credit: Getty Images

Australian Open
'It's insane, it's inhumane' - Cornet upset at umpire over towel in searing heat
"I'm little bit dead, to be honest. It's a long time since I played my last match at Wimbledon. I will try to do my best to recover and fight next match," Halep said in her on-court interview.
"She's a champion and it's always difficult to play against her. On hard courts, it's more difficult. I will try to enjoy it and to have a nice atmosphere again."
Johanna Konta, who was leading former world number one Victoria Azarenka 6-3 3-0 on Wednesday before rain forced an overnight delay, returned to wrap up the match 6-3 6-1.

Johanna Konta of Great Britain returns a shot to Elise Mertens of Belgium during Day 5 of the Mubadala Silicon Valley Classic at Spartan Tennis Complex on August 3, 2018 in San Jose, California.

Image credit: Getty Images

Up next for the British number one will be a clash with defending champion Elina Svitolina.
U.S. Open champion Sloane Stephens, the third seed, beat Spain's Carla Suarez Navarro 6-2 7-5 to book her spot in the quarter-finals, where she will face Latvia's Anastasija Sevastova, a 6-3 7-6(2) winner over German 10th seed Julia Goerges.
Australian Open
'Never too late' - Tearful Cornet stuns Halep to reach first ever Grand Slam quarter-final
Australian Open men
‘I think we’ll still see him next year’: Konta on Murray’s future