Third-seeded Maria Kirilenko of Russia squandered three match points in losing to Kazakh qualifier Galina Voskoboeva 1-6, 7-5, 6-4 in the second round of the Pattaya Open on Wednesday.
Sixth-seeded Peng Shuai of China defeated Elena Baltacha of Britain 2-6, 6-1, 6-4 in 1 hour, 51 minutes, marking the third time in five years Peng made it into at least the quarterfinals in Pattaya.
She will face the winner between top-seeded Vera Zvonareva and local player Nungnadda Wannasuk.
Kirilenko led 6-1, 5-2 and served for the match at 5-4, 40-0 but let her nerves get the better of her. She built a 3-1 lead in the third set and failed again to capitalize on the opportunity.
It was the second premature exit from Pattaya for the Russian, who as the second seed in 2007 was knocked out in the first round.
''I wasn't in the match at all until I was down 3-0 in the second set,'' Voskoboeva said. ''But I started to play better from then. When you are down match point at 4-5, 0-40 , you need luck as well. But I didn't think about that. I just played point by point.''