The U.S. Open along with the Australian Open has night matches played on the main stadium court.  Over the years, there have been many memorable matches played in Melbourne at night, but there’s nothing like 23,000 screaming New Yorkers at night.  The electricity can be kinetic even for early-round encounters.  The crowd urges on the players, cheers for the “ballbabes” and does the wave whenever it feels like it, even if the players are actually ready to play!  Bu then there are the daytime matches.  No Grand Slam matches Wimbledon in terms of having the stands filled with astute tennis fans for practically every match in Centre Court.  But the U.S. Open really falls flat during many daytime matches, even for some of the hotly-contested round of 16 and quarterfinal encounters.  The stands are barely filled.  People often blame the fact that the lower box seats, which are usually half empty during the day, are sold to corporate sponsors.  However, the upper nosebleed seats, where the average tennis fan sits, are also half empty.  How can you create atmosphere when no one comes to the party?!