Jankovic saved two set points from 4-5, 15-40 - just as they did when she defeated Maria Sharapova to win the title here five years ago.
''That was the last time I was here, so I would love to win it again,'' Jankovic said.
The Serb is returning from a thigh muscle injury in February and moving outside the top 20.
- Jelena Jankovic
- Maria Sharapova
- Melanie South