It is the second time Jepchirchir has broken a world record over the distance. She registered her personal best of 1:05:06 in a mixed race three years ago in Ras Al Khaimah to set the world record, which only stood for eight months.
In the men's One Hour event, Britain's and Olympic champion Mo Farah held off the challenge of his training partner, home athlete Bashir Abdi, to set a new mark of 21,330m - eclipsing the 2007 mark of 21,285m set by Haile Gebrselassie. Abdi finished eight meters behind. Enditem
The Austrian will now challenge 2014 champion Marin Cilic of Croatia in the third round. Thiem has a 2-0 lead in their head-to-head series.
In the men's singles, Russian players Daniil Medvedev and Andrey Rublev joined Thiem in the last eight while Australia's Alex De Minaur also advanced. Enditem
Reigning champion Barty said there were two reasons for her decision to skip the clay-court tournament, which is scheduled to take place in Paris from September 27 to October 11.
The safety car came in at the end of lap 23, by which time almost all the drivers had made their pit stops legitimately, but almost immediately Charles Leclerc lost control of his Ferrari and crashed heavily at Parabolica, forcing proceedings to be halted while marshals cleared Leclerc's car and repaired damage to the barrier.
Williams said: "It was intense I have to say. We always have some really incredible matches and it brings out the best of my fitness when I play Sloane. I tried to stay calm and be more serene after the loss of the first set. I knew it was important for me just to keep trying, just to keep going."
She will take on 15th-seeded Maria Sakkari of Greece in the last 16, who stunned Williams at last month's Western & Southern Open.
Chelangat, 22, announced her arrival to the track world when she won the bronze medal in the women's 3,000m at the 2015 World Junior Championships in Cali, Colombia but has struggled with injuries and loss of form ever since.
PARIS, Sept. 7 (Xinhua) -- France striker Kylian Mbappe has tested positive for COVID-19 and will miss Tuesday's UEFA Nations League match against Croatia, the French Football Federation (FFF) said on Monday.
The Brazilian claimed that no one had informed PSG of their player having contracted COVID-19.