Women’s tennis gets new statistic called “power index”, good or bad idea?
The new statistic in women’s tennis made its debut at the Acura Classic tournament, and it’s about determining how hard the player hits the ball. The “power index”, as it’s called, takes into account a player's fastest groundstroke (forehand or backhand), first serve, second serve, first-serve return, second-serve return and smash or volley. It is measured by ball-tracking technology from company Hawk-Eye Innovations. Read more »

