The four-man bobsleigh team notched a track record time in the first run at 50.83, but the 51.18 in the second was enough to remain first.
The two Germany bobs - piloted by Francesco Friedrich and Nico Walter, respectively, were second and third. Latvia-2, driven by Oskars Kibermans, ended the competition in eighth place.
On Saturday, Martins Dukurs won the season's seventh Skeleton World Cup stage at the Igls track in Austria, his sixth win of the season.
Russia's Alexander Tretiakov finished the stage in overall second place, 0.45 seconds behind M.Dukurs, while Russia's Nikita Tregubov finished in overall third place, 0.74 seconds behind Dukurs.
Meanwhile, Martins' brother Tomass finished in overall eighth place, 1.51 seconds behinds his brother.
In the Skeleton WC standings at the moment, M.Dukurs is in overall first place with 1,560 points, followed by his brother Tomass in second with 1,334. points.
Martins has won six out of seven WC stages this season, and Tomass has five podium finishes.
M.Dukurs is currently the five-time defending Skeleton World Cup champ, while T.Dukurs has finished in overall second place the past two Skeleton World Cups.
Last season, M.Dukurs won seven out of eight Skeleton World Cup stages, while T.Dukurs finishes in the top three seven times. At the 2014 Sochi Olympic, M.Dukurs won the silver medal, while T.Dukurs finished in fourth place.