No.3 seed Wang Qiang is the highest-ranked player in the quarterfinals, and will face Bernarda Pera for the second time this year. Previously, Wang defeated the American 7-6(5), 6-2 in the second round of Indian Wells. The Chinese No.1 is bidding for her first career claycourt semifinal.
No.6 seed Katerina Siniakova, No.9 seed Barbora Strycova and wildcard Karolina Muchova have continued the tournament's streak of at least three home players in the last eight every year since its current incarnation debuted in 2015, with Siniakova and Strycova's clash also guaranteeing that the streak of at least one Czech semifinalist in every year will also carry on.
Barbora Strycova leads her head-to-head against Katerina Siniakova 3-1, with all matches coming on clay. This is the third time the two Czechs have met in the Prague quarterfinals, with Siniakova taking their 2015 duel 6-4, 6-2 and Strycova winning 6-3, 5-7, 6-3 two years later. Both have reached the last eight at home for the fourth time this year, with Siniakova progressing to the semifinals once in 2015 and Strycova reaching the final in 2010 and the semifinals in 2017.
Lucky loser Tamara Korpatsch, who fell to Iga Swiatek in the final round of qualifying but got into the main draw when Karolina Pliskova and Marketa Vondrousova withdrew, is 2-0 against qualifier Jil Teichmann. The German has lost just five games across those previous matches, in the first round of the Darmstadt ITF W25 event in 2016 and in her Gstaad opener in 2017.
Five of this year's quarterfinalists are relative novices at this stage of a WTA event. Natalia Vikhlyantseva made two Premier semifinals to bookend her breakthrough season in 2017, as well as the 's-Hertogenbosch final - but her run this week is her first last-eight showing at WTA level since Moscow that year. Bernarda Pera, a quarterfinalist in Charleston and semifinalist in Guangzhou last year, and Tamara Korpatsch, who made the last eight of Gstaad in 2017 and Lugano in 2018, are both playing their third career quarterfinal; Karolina Muchova reached her first quarterfinal in Doha this February; and Jil Teichmann is making her debut in the final eight of a WTA tournament.
ORDER OF PLAY
CENTRE COURT (starts 11am)
Bernarda PERA (USA) vs WANG Qiang (CHN) 
[WC] Karolina MUCHOVA (CZE) vs Natalia VIKHLYANTSEVA (RUS)
Barbora STRYCOVA (CZE)  vs Katerina SINIAKOVA (CZE) 
[Q] Jil TEICHMANN (SUI) vs [LL] Tamara KORPATSCH (GER)
COURT 1 (starts 12.30pm)
Anna KALINSKAYA (RUS) / Viktoria KUZMOVA (SVK) vs Dalila JAKUPOVIC (SLO) / Paula KANIA (POL)
Nicole MELICHAR (USA) / Kveta PESCHKE (CZE)  vs [WC] Denisa ALLERTOVA (CZE) / Tereza SMITKOVA (CZE)