Dolphins Mitya and Solnyshko were thrown round discs depicting the flags of the two countries in their pool and had to bring them back.
Both came back at the same time for a 1-1 draw after the first run before the Russian flag was returned faster by Mitya in the last two throws for a predicted 3-1 Russia.
The dolphins are part of a growing menagerie of animals predicting World Cup games.
