Russia have claimed their first Olympic bobsleigh gold, with pilot Alexander Zubkov guiding the host nation to a commanding victory in Sochi.
Alongside Alexey Voevoda, Zubkov recorded a combined time of three minutes 45.39 seconds for four runs.
They finished 0.66 secs ahead of Switzerland, who took silver, while the USA sled, piloted by World Cup champion Steven Holcomb, finished third.
Great Britain were 23rd with the Jamaicans finishing 29th out of 30.
The success of Zubkov and Voevoda gave Russia their fifth gold medal of the Games.
The Team GB duo of Lamin Deen and John Baines were only paired last week following the withdrawal of Craig Pickering through injury.
They did not feature in the fourth and final run after they finished outside of the top 20 which qualified from round three.
'It hasn't been easy as we haven't had much time to prepare, but I felt we were getting better each round,' Deen told BBC Sport.
'We've had an extra nine runs on the track though and that will really help us come the four-man event.'
Jamaican pilot Winston Watts, 46, said he was disappointed the team could not finish higher but was delighted by the response to their presence in the event.
It was the Caribbean island's first appearance in bobsleigh at the Winter Olympics since 2002.
'We didn't achieve what we wanted to, but we lit up the Games and I'm pleased wi.