Guangzhou, China - Rising British star Laura Robson on Thursday reached the semi-finals of the WTA Guangzhou Open by defeating China's Peng Shuai 7-5, 5-7, 6-2.
The 18-year-old world No 74, who made it through to the last 16 at the US Open earlier this month with wins over Li Na and Kim Clijsters, needed more than three hours to defeat her Chinese opponent, ranked 27 places above her.
To reach the last eight Robson had defeated the second seed, Zheng Jie of China 6-3, 6-3. She next plays third-seeded Sorana Cirstea, the world No 30 for a place in the final. The Romanian beat Alize Cornet of France 6-4, 6-3.
The second semi-final will be between Ursula Radwanska of Poland and Hsieh Su-wei of Taiwan.
Robson is the first British woman to reach a main tour singles semi-final since Anne Keothavong at the Luxembourg Open in October 2011.
Collated results from the Guangzhou Open WTA tournament on Thursday (x denotes seeding):
Su-Wei Hsieh (TPE) bt Mathilde Johansson (FRA) 6-3, 6-0
Urszula Radwanska (POL x4) bt Chanelle Scheepers (RSA x5) 6-1, 7-5
Sorana Cirstea (ROM x3) bt Alize Cornet (FRA x8) 6-4, 6-3
Laura Robson (GBR) bt Shuai Peng (CHN x7) 7-5, 5-7, 6-2