A strong serving performance led Serena Williams to a 6-2 6-0 victory over Svetlana Kuznetsova in the Rome quarterfinals. According to SAP Tennis Analytics for Coaches, Williams exceeded her season averages in every serving category in her 51 minute victory Friday.

Six weeks ago, Kuznetsova defeated the World No.1 as Williams struggled with her service in Miami. In Rome, the Williams serve was vastly improved.

Williams put 78% of her first serves in play Friday, up considerably from her season average of 60%. The SAP Coaches View analytics also show that percentage was just 63% in the Miami match, which included a combined 56% in the final two sets, which Williams lost.

At 74%, Williams leads the WTA in first serve points won. On Friday, she did even better, winning 81% of first serve points. That is also a significant improvement over the Miami match in which she won only 60% of first serve points, and that dipped to 53% in her two losing sets.

She was also improved on second serves, winning 56 percent of those points, compared to her season percentage of 50%. In the Miami loss, Williams won only 39% of those points in total, and just 28% in the final two sets.

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.

For Serena Williams on Friday, there were many positives to take from this data.