The Czech’s win in Group A brought the 28-year-old back into contention for a place in the semi-finals after he lost his opening match to Stanislas Wawrinka.
Berdych will play world No1 Rafael Nadal in his final round-robin match on Friday, with the Spaniard having already booked his spot in the last four thanks to his win over Stanislas Wawrinka on Wednesday.
Ferrer is out after losing both of his opening matches, but Wawrinka is still in contention for a last-four spot.
“It’s going to be a big one [against Nadal], that’s for sure,” said Berdych, who has lost his last 15 matches against the Spaniard.
“I probably cannot have any tougher opponent than I have. But he’s already through, he’s secure for the [year-end] No1, so you never know.
“But I know Rafa is a big fighter and he will never give a single point for free. So I’m not expecting any gifts.”