Agnieszka Radwanska, the 2012 runner-up, is making her 12th appearance at the All England Club. Only twice has she failed to make the second week: in 2007 she lost to Svetlana Kuznetsova in the third round and in 2011 she was felled by Petra Cetkovska in the second round. The Pole holds a 5-0 head-to-head lead against her opponent today, Christina McHale.
No.3 seed Karolina Pliskova's second round against Magdalena Rybarikova today will be a battle of accomplished grass-courters who have thus far been Wimbledon underperformers. Pliskova has reached a grass final in each of the past three years - the runner-up in Birmingham in 2015 (to Angelique Kerber) and Eastbourne in 2016 (to Dominika Cibulkova), and champion in Eastbourne last week. Yet the Czech has yet to make the third round of Wimbledon, having lost at this stage for the last four years. 2009 Birmingham champion Rybarikova, meanwhile, has compiled a 14-1 record in this year's grass season so far - but in 10 Wimbledon campaigns, this year is only the second time she's won a match.
Zarina Diyas reached the fourth round of Wimbledon on her debut here in 2014 - and again the following year. However, the Kazakh sat out for the second half of 2016 due to wrist surgery. Her opponent today is a familiar face: she has played Arina Rodionova three times in 2017 already, including twice on grass within the past month, and is yet to drop a set to the Australian.
Top seed Angelique Kerber faces 2013 semifinalist Kirsten Flipkens today, a rematch of their 2014 third-round encounter here. Kerber won that match 3-6, 6-3, 6-2.
In the 40 Slams Caroline Wozniacki has played, she has just five losses to players ranked outside the Top 100: No.187 Jelena Dokic at the 2009 Australian Open, unranked Kim Clijsters in the final of the 2009 US Open, No.196 Petra Cetkovska in the second round of Wimbledon 2013, No.136 Camila Giorgi at the US Open in 2013 and - once again - No.149 Cetkovska at the US Open in 2015. Today, Wozniacki squares off against No.131 Tsvetana Pironkova.
Tsvetana Pironkova has reached a grass quarterfinal or better every year since 2010 (except 2014, when she went winless on the surface). Three of the Bulgarian's twelve Top 10 wins have come on green lawns: Venus Williams in the quarterfinals of Wimbledon in 2010, Vera Zvonareva in the third round the following year and Agnieszka Radwanska in the first round of Eastbourne in 2012.
Polona Hercog's record in Slam second rounds is 1-12. Her sole third-round showing came at Roland Garros in 2010.
No.14 seed Garbiñe Muguruza first played Yanina Wickmayer in the second round of Hobart in 2014. The Belgian retired trailing 4-1, and Muguruza went on to win her first-ever career title. The Spaniard was also the victor in their only completed match to date, in the third round of Roland Garros last year.
Kristina Kucova was the 2007 US Open girls' champion, and in 2009 she made her Slam main draw debut at Wimbledon, making the second round as a Lucky Loser. This is her first main draw appearance at the All England Club since then.
No.7 seed Svetlana Kuznetsova dominates the head-to-head against compatriot and second-round opponent Ekaterina Makarova 6-1. However, the younger Russian's only win came in their sole grass-court encounter - 6-4, 7-5 in the quarterfinals of Eastbourne in 2010, a tournament Makarova would go on to win.
's-Hertogenbosch champion Anett Kontaveit is seeking to extend her winning streak to seven today against No.29 seed Daria Kasatkina. This is the first year the Estonian has won a match at Wimbledon, following three consecutive first-round defeats.
Magdalena Rybarikova was ranked as low as No.453 in March following wrist and knee surgeries last year - but has surged back into the Top 100 already. Find out more about the Slovak's spectacular comeback in our WTA Insider interview.
Thirty-nine days after Venus Williams made her first Slam final at the 1997 US Open, Naomi Osaka was born. Yesterday, they set up a tantalizing third-round match here. Chuck Culpepper has written about their cross-generational encounter for the Chicago Tribune.
Eastbourne champion Karolina Pliskova is one of the favorites to win Wimbledon this year. Find out more about life on tour with her sister Kristyna in the twins' exclusive photoshoot from Eastbourne.