With Madison Keys into the quarterfinals after beating fellow American Madison Brengle, it seems as though guidance from new coach Lindsay Davenport has helped Keys to better manage her power and become more consistent. Through four rounds in Melbourne, Keys' aggressive ground game has allowed her to break serve 14 times in 7 sets. And compared to her 2014 WTA averages, Keys' serve and return stats have also improved at the Australian Open.
Check SI.com's Australian Open Daily Data Visualizations hub page throughout the whole tournament for the latest data-driven infographics and charts from IBM, the official technology partner for the Australian Open. IBM captures and analyzes the data that powers all of the Grand Slams, as well as the digital platforms that extend the experience to fans around the world.