New Haven, CT, USA, 23 August 2014 |

Petra Kvitova has maintained her mastery over Sam Stosur with a 6-3 6-1 victory in the semifinals of the WTA Connecticut Open in New Haven.

The Czech, seeded second at the Premier-level event, romped through to her third straight New Haven final in one hour and 13 minutes.

The victory meant that Stosur has lost six of her seven career matches against the reigning Wimbledon champ.

But with Kvitova in such a rich vein of form, there was little Stosur could have done.

The Czech left-hander sent down 11 aces during the contest, including three in the ninth game – accompanied by a forehand winner – to seal the first set with a service hold at love.

Kvitova produced an astonishing nine aces and 20 winners in the first set alone, leaving Stosur somewhat shell-shocked.

The Aussie was unable to find the groove on her own serve which had been such a weapon all week in New Haven; she could not manage a trademark ace and landed just 59 per cent of her first serves, winning less than half those points.

Kvitova will face Slovakia’s Magdalena Rybarikova in the final.