Unseeded German Sabine Lisicki beat fourth seed Daniela Hantuchova 6-3 6-2 in the rescheduled final of the Aegon Classic in Birmingham on Monday.
Ranked number 100 in the world, Lisicki had beaten third seed Shuai Peng in the semi-final - and was not overawed by her experienced Slovakian opponent.
She broke serve once in the first set and twice in the next set to secure her second WTA tour event career win.
Lisicki, 21, reached the Wimbledon quarter-finals in 2009.
She now appears to be close to the level of form she reached two years ago after slipping outside the world's top 200 last year following seven weeks on crutches - and found out on Sunday that she had been given a wildcard for the main draw at the All England Club.
"If I hadn't been given the wildcard, I would have been playing the qualifying on Tuesday - and it will be very helpful to be able to rest for a couple of days instead," she said. "But I don't want to put pressure on myself."
"I am in disbelief. I am shaking. It's an amazing week. At the start of it I never thought I would be standing here today. The comeback from injury was so difficult, it means so much to me."
Lisicki first broke Hantuchova in the fourth game, from which point her booming serve and fierce ground strokes always made her the likely winner.