Having completed its sixth season in 2009, the Olympus US Open Series has established itself as a true regular season of hard court tennis, linking 10 summer tournaments to the US Open. In 2008, Olympus became the first title sponsor of the Series. The 2009 Olympus US Open Series set a new record with nearly 47 million viewers across the six-week season – the largest TV audience in Series history. In addition, the Olympus US Open Series received unprecedented television exposure with over 100 hours on ESPN2, more than 250 hours on Tennis Channel and two tournament finals on CBS Sports.