Flipkens won their previous meeting. That was in Holland on grass in June 2012. She won in 2 very tight sets.
They have very similar overall results this year. On hard courts Flipkens has better results and her ROI is also higher.
Gavrilova has had 2 very tight matches this week. Her serve has come under a lot of pressure.
Flipkens has come through the qualifying rounds. Her toughest match was in the qualifying rounds against Maria. In the main draw she has not lost a set.
Some value on Flipkens as underdog. This looks like going to 3 sets. I give Flipkens a good chance of winning the match.
Lay Gavrilova below 1.45 and remove or reduce liability if she then gets broken.
Update: Gavrilova won easily in 2 sets. Poor day on serve from Flipkens.