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A startup venture, EndGame Technologies, has designed novel computer modeling software to assist National Football League coaches with critical play-calling decisions–the kind that often determine the outcome of the game. Should a team punt on fourth down–or go for it? Or attempt a two-point conversion after a touchdown? The software, called ZEUS, is designed to answer such questions by calculating the consequences of each decision in a matter of seconds.

Head ZEUS researchers Chuck Bower and Frank Frigo want to revolutionize football by changing the way plays are called. Already, their statistics on past NFL games have revealed that teams consistently lose approximately one game per season by making the wrong play calls in critical situations. And with only 16 games in an NFL season, each win or loss is of paramount importance.

Football is a game of strategy and risk management. Each coach goes into a game with a plan, explains Dwight Smith, head football coach at MIT. Although every variable is considered beforehand, adjustments have to be made as the game progresses. ZEUS is meant to help coaches make those on-the-fly decisions. The software was created by mining historical NFL data and developing distribution curves of success rates for individual actions, such as how far a running back carries the ball.

Coaches could use ZEUS at any point in the game, by entering a set of variables, such as the score, field position, possession, down, and time remaining on the clock. Then the user enters two play-call options and the software analyzes each one separately, playing the game to its conclusion 100,000 times. During each iteration, ZEUS considers a different scenario.

All the decisions about play calls that occur after the initial play are based on historical NFL data. This data isn’t specific to a particular coach, though; it’s based on records from a wide variety of coaches. (The researchers call this algorithm the “generic” NFL coach.) In a matter of seconds, ZEUS displays the Game Winning Chance–the play that gives the team the highest probability of winning.

Unlike interactive football simulations, which require about the same amount of time to play out as a real game, ZEUS performs its calculations and recommendations in real time, displaying the computer’s results before the next snap.

According to Bower, the challenge for them now lies not in the technology, but in getting NFL teams to adopt it. “We have shown it to 10 NFL teams, [everyone] from managers to head coaches,” he says. “But at this point no one has stepped forward and said we are ready to pay for the product.”

The problem: ZEUS is still illegal under NFL guidelines. The league doesn’t permit computers on the sidelines or in the coach’s booth on game day. Although there are no restrictions on using high-tech analytical tools off the field, the traditional elements of strategy continue to be preserved on game day.

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