The meeting took place in Melbourne, lasted 3 hours 26 minutes and ended with a score of 3: 6, 1: 6, 6: 3, 6: 3, 6: 4.
Thus, Karatsev reached the quarterfinals of the Australian Open.
In the quarterfinals, the Russian will meet with the winner of the Dominik Tim - Grigor Dimitrov pair.
Earlier, Potapova lost to Peterson in the first round of the tournament in Melbourne.