The Australian Open, Wimbledon, the US Open and the Olympics all take advantage of Hawk-Eye on their featured courts. Roland Garros does not.
Bad line calls are an inevitable part of professional tennis. With Hawk-Eye, the technology exists to minimize the impact of these calls on the outcome of a match.
“There are ball marks on clay” according to Tournament Director Gilbert Ysern.
“Our chair umpires are used to checking the marks when needed so why would we need Hawk-Eye?”
What about those times when it’s difficult to even find the correct mark?
At Roland Garros 2013 Maria Sharapova experienced just that:
“For me it was the fact that the umpire did not recognize that the mark he pointed out was about a foot away from the actual mark. The other grand slams have Hawk-Eye … I know these types of situations happen, although much more rarely on the clay. Why don’t we have a system like this? I mean, is it a money concern? I don’t think so. This is just absolute proof that it can happen in any situation.”
Bob Bryan has even gone so far as to use a camera phone to shoot a contested mark on court resulting in a fine.