RIO DE JANEIRO - Both Singapore's paddlers in the women's singles event have made the quarter-finals, after Feng Tianwei swept past Austria's Liu Jia at Riocentro Pavilion 3 on Monday night.

The Singaporean, the second seed in this event, beat her world No. 25 opponent 11-6, 11-6, 11-7, 6-11, 11-4.

Feng was largely untroubled in the match against Liu, an opponent she had never lost to in five previous encounters on the professional circuit. Still, with a raucous crowd in the stands rooting for the underdog, errors leaked from the Singaporean's bat with victory in sight.

"I got into the rhythm of the match pretty quickly but my opponent changed tack in the fourth game and I couldn't adapt quickly enough," Feng said.

Feng was playing her second match of the day, having survived a scare from Luxembourg's Ni Xialian earlier in the third round, winning that match 8-11, 5-11, 11-8, 11-5, 11-4, 11-5.

The 2012 singles bronze medallist will face Japan's Ai Fukuhara next, joining team-mate Yu Mengyu in the last eight.

She said: "I may have a superior head-to-head record against Ai but at this stage, it doesn't really matter what happened in the past."

Earlier in the day, Yu also earned a place in the quarter-finals after beating South Korean Jeon Ji Hee 12-10, 8-11, 12-10, 11-7, 11-2.

Yu will play North Korean Kim Song I on Tuesday morning (9pm, Singapore time).