She beat Alieksandra Sosnovic 7-6, 6-0 on July 9 to continue her hot run of form.
Ostapenko's opponent in the fight for a place in the semi finals of Wimbledon will be Slovenian tennis player Dominika Cibulkova, who is currently ranked 33rd in the world.
Latvian attention then turned to Ernests Gulbis, in action Monday evening against Japan's Kei Nishikori in the men's competition for a place in the last 8. Gulbis started well, taking the first set 6-4, but eventually lost in four sets after injuring his leg in the third set.