The Amazing Race Asia 4 is the fourth season of The Amazing Race Asia, a reality television game show based on the American series The Amazing Race. The fourth installment of the show features several teams of two, each with a pre-existing relationship, in a race around Asia and the Pacific Rim. Production for this installment was delayed in 2009. It is also the first Amazing Race series to be filmed and broadcast in high-definition. The season premiered on 23 September 2010 and the finale aired on 9 December 2010.