 US Open semifinalist and Auckland champion Jelena Janković also sailed through in straight sets, but rising teen Nicole Vaidišová had to survive a tough three set challenge from Jill Craybas to advance.2005 and 2003 champion Serena Williams showed glimpses of the form that saw her rise to World No.1 when she swept past 27th seed Mara Santangelo 6–2 6–1 despite a relatively poor service percentage of 45%.The second day was ravaged by heat in excess of 40 deg Celsius (104 deg Fahrenheit) causing the Extreme Heat Policy to be implemented.