Jabarkan Rating dari The Amazing Race 18

Episode 2, "I Have Never Looked So Foolish In My Whole Entire Life", aired the same night as the 83rd Academy Awards.

Episode 9, "We're Good American People", aired on Easter Sunday.

Episode 10, "Too Many Cooks in the Kitchen", was delayed for one hour in most west coast CBS stations due to the breaking news coverage of the death of Osama bin Laden. (In four Pacific markets that air primetime from 7-10pm – Sacramento, Phoenix, Tucson, and Yuma – the ending was not seen.)

Episode 11, "This is Where It Ends", the two-hour season finale, aired on Mother's Day. It was the lowest-rated season finale in the show's history.