By afternoon, all the programmes went on according to schedule.
Event highlights included musical performances and appearances by popular tennis stars and celebrities — Andy Roddick, James Blake, Roger Federer, Serena Williams, Maria Sharapova, Will Ferrell, Jordin Sparks and many more.
The performance by funnyman Will Ferrell was probably the highlight of the day, when he appeared wearing the same outfit as Blake and a rubber hairpiece to mimic Blake's clean shaven head.
He then climbed clumsily into the umpire's chair and made a shout out at Blake's exhibition doubles match, offering funny advice like, "Get closer. Try to kiss your opponent."
Here's the video made by tennisnakama of the event:
(Images by Rob Loud/Getty Images North America)