Former champion Naomi Osaka was sent packing from Indian Wells after losing in straight sets to Colombia's Camila Osorio.
Wrapping up the first set in less than 25 minutes, the pair led 4-1 in the second when they were made to work a bit as Galfi and Pera won four games on the trot to make it five-all.
Summary of sports events and persons who made news on Wednesday
Serena Williams survived another scare to beat older sister Venus 3-6, 6-3, 6-4 on Thursday in the latest instalment of their reluctant on-court sibling rivalry to reach the quarter-finals of the inaugural Top Seed Open in Lexington, Kentucky.
The 36-year-old Australian Open champion arrived in the Dutch port city at the weekend knowing a run to the semi-finals will move him ahead of Rafael Nadal in the ATP standings.
Images from Day 1 at the Australian Open.
A summary of sports events and sports persons, who made news on Wednesday
The match ended in 52 minutes as Williams played her forehand into the net.