A look at the records, key stats and notable numbers through the first two rounds of the Australian Open.

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3 Number of games Victoria Azarenka has surrendered through two rounds.

6 Number of first-serve points Tomas Berdych has lost through two rounds; he's won 72 of 78 points played on his first serve.

6 Women have captured the career Grand Slam: Margaret Court, Chris Evert, Martina Navratilova, Steffi Graf, Serena Williams and Maria Sharapova.

0-8 David Goffin's record versus Top 20 opponents in Grand Slam play; Goffin faces 20th-ranked Dominic Thiem today.

18 Seeded woman failed to survive the second round.

31 Record number of aces Kristyna Pliskova hit in her 4-6, 7-6 (6), 9-7 second-round loss to Monica Puig.

39 Combined double faults Jeremy Chardy (21) and Ernests Gulbis (18) produced in their first-round match, which Chardy won in five sets.

42 Shots between Marcel Granollers and John Isner—the longest rally of the tournament so far.

125 MPH serve by Serena Williams is the fastest struck by a woman through two rounds.

146 MPH is the fastest serve by a man, hit by Sam Groth.

299 Career Grand Slam victories for Roger Federer, who can become the first man in Open Era history to earn 300 major victories by defeating Grigor Dimitrov in the third round today.

599-144 Maria Sharapova's career record entering her third-round match with Lauren Davis.

Photo credit: Mark Peterson/Corleve