Russian Alexander Zubkov secured a golden finale for the Winter Olympics hosts by adding the four-man bobsleigh crown to his two-man title in Sochi.
Zubkov, watched by Russian Prime Minister Dmitry Medvedev, held on to his slim overnight lead to take gold by nine hundredths of a second ahead of Latvia's Oskars Melbardis.
American Steve Holcomb, the 2010 champion, won bronze.
Holcomb also secured bronze in the two-man event.
Zubkov's double success helped Russia top the medals table with 13 golds.
