For the first time in the Open Era, no Top 10 seeds have made the quarterfinals at a Grand Slam - and only one Top 10 player, No.11 seed Angelique Kerber (who moved back up this week after the seeding list was made). However, five quarterfinalists have career high rankings in the Top 10: Kerber (1), Serena Williams (1), Jelena Ostapenko (5), Dominika Cibulkova (5) and Julia Goerges (10). Two quarterfinalists are in the Porsche Race to Singapore Top 10: Angelique Kerber (5) and Daria Kasatkina (9).
World No.181 Serena Williams is the lowest-ranked player to reach the Wimbledon quarterfinals in the Open Era, beating the previous record of No.134 Mirjana Lucic-Baroni's semifinal run in 1999. Williams is the sixth lowest-ranked Grand Slam quarterfinalist since 1983, following No.187 Jelena Dokic (Australian Open 2009), No.192 Angelica Gavaldon (Australian Open 1990), No.349 Martina Hingis (Australian Open 2006) and the unranked Justine Henin (Australian Open 2010) and Kim Clijsters (US Open 2009). Williams is guaranteed to return to the Top 100 after Wimbledon, and could be as high as the Top 20 with a title.
Only three of this year's quarterfinalists have reached this stage without dropping a set: Dominika Cibulkova (23 games lost), Jelena Ostapenko (23 games lost) and Serena Williams (28 games lost). Daria Kasatkina, Angelique Kerber and Kiki Bertens have lost one set each (to Alison Van Uytvanck, Claire Liu and Venus Williams respectively); Julia Goerges and Camila Giorgi have both conceded two, the German to Vera Lapko and Barbora Strycova and the Italian to Anastasija Sevastova and Katerina Siniakova.
Angelique Kerber and Daria Kasatkina have had a dramatic rivalry that is now level at 3-3. The German won their first meeting in the 2016 Montréal quarterfinals 6-2, 6-2; Kasatkina captured her first two Top 2 victories over Kerber in the first two months of 2017 in Sydney and Doha, but Kerber got her revenge at the end of that year in Tokyo. This year, they have had contrasting matches: the Russian took an emphatic win 6-0, 6-2 in the Indian Wells quarterfinals, while Kerber won a dramatic epic 6-1, 6-7(3), 7-6(3) in last fortnight's Eastbourne quarterfinal - their sole grass encounter to date.
Each of the remaining head-to-heads is one-sided. Serena Williams has never lost a set to Camila Giorgi in three meetings, winning 6-2, 6-3 in the second round of Charleston in 2013, 7-6(6), 6-2 in a 2015 Fed Cup World Group play-off tie, and 6-4, 7-5 in the first round of the 2016 Australian Open.
Dominika Cibulkova is 2-0 against Jelena Ostapenko, winning 6-3, 6-3 in the second round of Eastbourne on grass in 2016, and 6-4, 3-6, 6-3 in the first round of Indian Wells in 2017.
This will be Kiki Bertens' first meeting with Julia Goerges off clay. The Dutchwoman won both of their previous encounters in contrasting fashion: 3-6, 6-4, 7-6(4) in the 2016 Nurnberg semifinals, and 6-2, 6-1 this April in the Charleston final. Both times, Bertens went on to capture the title. Today's match is a clash of two players who have hitherto performed worse on grass than elsewhere: coming into Wimbledon this year, Bertens had never defeated a Top 20 player on the surface and Goerges' record against Top 20 players was 3-8.
Seven-time Wimbledon champion Serena Williams is riding an 18-match winning streak at the All England Club, following her title runs in 2015 and 2016. The American has lost just three sets in this time: to Heather Watson and Victoria Azarenka in 2015 (in the third round and quarterfinals respectively), and to Christina McHale in 2016 (in the second round).
Dominika Cibulkova has now reached more quarterfinals at Wimbledon (3) than any other Slam (two at the Australian Open, two at Roland Garros and one at the US Open). During her seven quarterfinal runs, the Slovak has been a Top 16 seed only twice: No.11 at the 2015 Australian Open and No.15 at Roland Garros in 2012.
Kiki Bertens is the fourth Dutchwoman to have reached the Wimbledon quarterfinals in the Open Era following Betty Stove (1975, 1977), Brenda Schultz-McCarthy (1995) and Michaella Krajicek (2007). Only Stove, who was runner-up to Virginia Wade in 1977, has progressed beyond this stage here. Camila Giorgi and Jelena Ostapenko are bidding to become the first women from Italy and Latvia to reach the Wimbledon semifinals in the Open Era.
Julia Goerges finally overcame a 0-5 record in Grand Slam fourth rounds - which had been a record among active players - to make her first major quarterfinal. The record is now 0-4, held jointly by Alizé Cornet and Petra Martic.
Serena Williams is 34-13 in Grand Slam quarterfinals, having suffered more losses in this round than any other. However, only one of those defeats has come this decade, at the 2013 Australian Open to Sloane Stephens; Williams's last Wimbledon quarterfinal loss was in 2007 to Justine Henin.
Australian Open semifinalist and Roland Garros quarterfinalist Angelique Kerber is the only player to have reached the last eight at all three Grand Slams so far this year. The German has reached this stage four times at Wimbledon, every two years since 2012, compared to two quarterfinals (or better) at each of the other Slams.
Jelena Ostapenko is the only quarterfinalist from Wimbledon 2017 to have repeated her run this year.
Daria Kasatkina reached her maiden Grand Slam quarterfinal in Roland Garros last month, and has immediately backed it up in SW19. Ten other active players reached their second major quarterfinal at the very next Slam on from their first: Venus Williams (Australian Open 1998), Maria Sharapova (Wimbledon 2004), Victoria Azarenka (Wimbledon 2009), Andrea Petkovic (Roland Garros 2011), Sara Errani (Roland Garros 2012), Simona Halep (Roland Garros 2014), Eugenie Bouchard (Roland Garros 2014), Timea Bacsinszky (Wimbledon 2015), Karolina Pliskova (Australian Open 2017) and Jelena Ostapenko (Wimbledon 2017).
2017 Roland Garros champion Jelena Ostapenko has largely flown under the radar in SW19, having had her first major title defence unceremoniously ended in the first round in Paris. But with the pressure off, the Latvian has quietly found some of her best form again, writes Peter Bodo for ESPN.com.
Serena Williams's fourth-round defeat of Evgeniya Rodina was the first Grand Slam match between two mothers of the Open Era. As a comeback to professional tennis after maternity leave becomes a more viable option, tournaments are beginning to move with the times and provide more facilities, writes Karen Crouse for the Sydney Morning Herald.
ORDER OF PLAY
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