Just how often were McEnroe's tirades justified? A detailed analysis of two years of challenged calls in tennis using the Hawk-Eye replay system shows players got it right about 40 percent of the time. Published this summer in the Proceedings of the Royal Society B, the study suggests both players and linemen have an impressive accuracy of just over 1.5 inches. In 94 percent of the challenges, the ball was within three inches of the line.

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A memo sent from Major League Baseball’s Umpires Union to its members last week suggests instant replay will be implemented by August 1st. In typical MLB fashion, the proposed plan is a decade late, ignores the potential provided by modern technology and will likely create more questions than answers. In the words of Yogi Berra, “This is like déjà vu all over again.” (see: steroid debacle).

But fear not Red Sox Nation and Marlin fan! We've concocted an ingenious plan that will save baseball from its masochistic ways. Before PopSci rescues America’s Pastime, it’s important to detail the current plan so we might strip it naked and expose the deficiencies.

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