Viktor Ahn threw his arms in the air as he crossed the finish line to claim the gold and his teammate Vladimir Grigore won the silver. Ahn has added to his three-existing gold medal, which he won while competing for South Korea in the 2006 Turin Games, before changing nationality.
"Of course I'm happy. I'm very happy, but I'm even more happy because Russia managed to win both the gold and silver," Ahn said. "I had no idea Russia was such a strong short track country. I want to try to win the relay and hope to enjoy the other competitions at these Games."
Ahn also won the bronze medal in the men's 1500m short track event.
Ahn won with a time of 1:25.325, followed by Grigore who clocked 1:25.399. Sjinkie Knegt of the Netherlands came in third with a time of 1:25.611.
Ahn, considered one of the all-time greats in South Korea, won 20 world championship gold medals and three Olympic titles before having a falling out with his coaches, leading to his gaining Russian citizenship in 2012.
This is Russia's third gold medal of 2014, with the previous two coming in figure skating.