The meeting lasted 49 minutes and ended with a score of 6: 4, 6: 0 in favor of the fifth racket of the world.
The 24-year-old Russians surpassed the opponent in all respects: the percentage of hits on the first serve was 69% versus 51%, while Andrey won 22 of 24 goals in the first serve (92% versus 59% for the opponent).
At the reception, he also surpassed his opponent, having realized four break points and taking 21 draws out of 43. Rublev also filed seven times right through.
Thus, Russia took the lead in the confrontation with Germany.
Daniil Medvedev and Jan-Lennard Struff will be next on the court.
The winner will play on December 5 in the final with Croatia.
Earlier, President of the Russian Tennis Federation Shamil Tarpishchev spoke about the preparations for the Davis Cup semifinals with Germany.