Stats: Smallest margin of victory in Tests (by runs)
Here is a list of victories by smallest margins in the history of Test cricket. The second Test match between England and Australia at Edgbaston, Birmingham in the 2005 Ashes series, widely believed to be one of the best Test series to have ever been played, where Australia lost to England by a margin of two runs, also happens to be on the list.
Note: Stats updated till October 17th, 2013.