Peterson won their only previous meeting. That was at this tournament in 2015 and she won in straight sets.
Peterson has better overall results this year. Apart from Wimbledon she has only played on clay in 2017. Her clay results are also better than Siniakova’s this season. She also has better stats on clay this year. She is playing at home but
has only won matches at this tournament in 2015.
Siniakova didn’t have a good grass season with just 1 win from 4 matches. She was very strong on clay last year and reached the final of this tournament. She has not reached that level so far this season and her confidence can not be high. Extra pressure on her this week as she tries to defend her final ranking points.
Some value on Peterson to take a set. Lay Siniakova below 1.40. She starts around 1.55.