To run sub-2 : 04 , he needed to hit each kilometer under 2 : 56 .
In 2009 , Sammy Wanjiru attempted to break the then world record of 2 : 03 : 59 in Chicago .
To run sub-2 : 04 , Sammy Wanjiru needed to hit each kilometer under 2 : 56 .
In 2009 , Sammy Wanjiru attempted to break the then world record of 2 : 03 : 59 in Chicago .