Alexander Zubkov has claimed his second gold medal of the Sochi Games and Russia's 13th by winning the four-man bobsleigh.
Zubkov, who also earned gold in the two-man bob, was leading by just 0.04sec after Saturday's opening two runs.
On Sunday, he produced two more consistent runs to clock a combined time of 3min 40.60sec to finish 0.09sec ahead of second-placed Latvia-1.
Latvia's team, piloted by Oskars Melbardis, were second overnight and they maintained their position to get silver.
The USA-1 team, with Vancouver Olympic champion Steve Holcomb in the driver's seat, took bronze despite having been down in fourth overnight.