ZHUHAI, China - Petra Kvitova continued to power her way through the Huajin Securities WTA Elite Trophy Zhuhai, reaching the title match with another outstanding serving performance in a 6-2 6-2 win over Zhang Shuai in Saturday's semifinals.
Kvitova once again dominated with her first serve, which has been her best offensive asset all week. In Saturday's semifinal, she won 87% of her first serve points. That is up from 83% in her two round-robin matches and a significant increase from her season performance of 68%.
SAP Coaches View technology shows the tracking of the Kvitova serves. Her first-serve distribution (the green dots) was slightly favoring serves to the Zhang backhand. It also reveals that all three of Kvitova's aces (red dots) were in the deuce court.
This view also shows that Kvitova exclusively went to Zhang's backhand on second serves (blue dots). That strategy had mixed returns for Kvitova. She won 9 of the 14 second-serve points she put in play, but five double faults drove her overall success on those points down to 47%.
Kvitova's first-serve percentage, 62%, was consistent with her season average. But she capitalized on those points when she did put the ball in play. In fact, Kvitova won the first 16 first-serve points of the match, including all 13 in the opening set.
That made it very difficult for Zhang to get a foothold in any return game. Zhang did not win more than two points in any return game until the final game of the match in which she earned her only break opportunity.
The SAP Coaches View combines scoring information direct from the chair umpire with tracking data from HawkEye to allow for an in-depth look at five different aspects of a match. Each tracking option can be filtered to narrow the focus to specific situations within a match, such as break points. This information is available directly to coaches in real-time during a match on their SAP tablet and also available to them online after matches.
"Service" tracking shows the landing point for all serves. The display differentiates between first serves, second serves and aces. Additional data on the screen shows the percentage of overall service points won as well as looking specifically at first and second serves. It can also be narrowed to show the performance on particular points in the match, such as break points.
Through her three matches in Zhuhai, Kvitova has now won 85% of her first serve points and 76% of her service points overall while not being broken. That type of serving will again be key if she wants to claim the final trophy of the WTA season.