Basilashvili, who is positioned 107 on the planet, delivered a noteworthy execution to recuperate from losing the opening set and thrashing world number 10 Berdych 6-4 6-7 (5/7) 7-5.
The misfortune is a noteworthy hit to Berdych’s desires of fitting the bill for the season-finishing ATP World Tour Finals in London. He went into the competition sitting in the eighth and last qualifying position.
Qualifier Damir Dzumhur beat Spaniard Nicolas Almagro, the world number 43, 6-3 5-7 6-0.
Russian special case Karen Khachanov additionally advanced with a 6-4 6-4 win over Italian Andreas Seppi.