Hannah Peters/Getty Images
By SI.com Staff
January 22, 2015

Since 1985, the number of tournaments played in North America has gradually decreased over time. What has the effect been over the last thirty years? For the men and women, the number of Top 100 North American players has also diminished. See the change in the ATP and WTA Top 100 below.

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.


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