The Amazing Race 18

The Amazing Race 18 (also known as The Amazing Race: Unfinished Business) is the eighteenth installment of the American reality television show The Amazing Race. It featured eleven teams of two – each returning from a previous edition for the first time since Season 11 – in a race around the world for a $1 million prize.

The eighteenth cycle started on Sunday, February 20, 2011. It aired on CBS in the United States on Sunday nights at 8:00 p.m. with the two-hour season finale on May 8, 2011. The show is hosted by Phil Keoghan.

The winners of this season were father/son team Henry and Ivan Kemp.

This season was preceded by season seventeen and followed by season nineteen.

Results
The following teams participated in the Race, listed along with their respective placements in each leg and relationships as identified by the program. Note that this table is not necessarily reflective of all content broadcast on television, owing to the inclusion or exclusion of some data. Placements are listed in finishing order: