Graphic: 40th Berlin Marathon
Kenyan Patrick Makau could break his own world record at classic event
The 40th Berlin Marathon, a classic race through a city with a thrilling history, takes place on Sunday September 29.
The fast, flat course, which has seen several world records set, takes more than 40,000 runners past the major sights of the German capital, with the austere buildings of the former East Berlin providing a sharp contrast to the hi-tech commercial property in the west of the city.
It could see both athletes challenge the world record of 2:03:38, set by Makau during the 2011 race.
Kipsang enters the contest with a 2:03:42 personal best, the second fastest marathon ever run on a record-eligible course only behind Makau.
Our interactive graphic below shows course route and profile, with previous winners and course record holders.
For more information visit the official website here