World quantity 31 Raducanu, the thirtieth seed, managed solely 16 winners to Bucsa’s 28, however maintained the higher hand in the important thing exchanges.
She saved six break factors in a aggressive first set earlier than successful the ultimate two video games to seemingly take cost of the match.
Raducanu gained the opening two video games of the second however, after lacking the possibility to go 3-0 up, was pegged again as Bucsa lastly broke serve to attract stage at 2-2.
She broke again instantly and gained 4 of the ultimate 5 video games.
Raducanu, who had a bye within the first spherical, was taking part in for the primary time since dropping to Barbora Krejcikova within the quarter-finals of the Korea Open this month, when she missed three match factors.
“I am very comfortable to have gotten over it and after a tricky one final week to bounce again,” mentioned Raducanu, earlier than impressing the group by talking Mandarin.
“I actually wish to do effectively right here. I am half-Chinese language so it is nice to come back again.”