Misaki Doi beat Donna Vekic of Croatia 6-1, 6-2 in the women's singles Tuesday to book herself a spot in the third round of the Madrid Open.
Unseeded Doi, who pulled off a surprise upset over world No. 10 Madison Keys in the first round, needed just 51 minutes to dispose of her 82nd-ranked opponent.
"I was able to maintain my pace from start to finish," said the 26-year-old Doi, a left-handed player currently ranked 53rd in the world.
"I've been able to play aggressively which has made the difference," she said.
Doi will face 83rd-ranked Sorana-Mihaela Cirstea of Romania on Wednesday.