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Qld researchers pinpoint the perfect penalty shot – a day too late for England

Just in time for soccer’s World Cup finals series – but too late for England – Australian scientists have developed a model for kicking penalty goals they claim delivers the best possible chance of finding the back of the net.

Dec 12, 2022, updated Dec 12, 2022

After analysing strategies used by strikers and keepers, researchers from the University of Queensland reckon they can advise coaches with a degree of confidence on identifying the best strategy against a particular goalie.

Professor Robbie Wilson, head of the uni’s Football Research Group , says the outcome of a penalty shot is determined by the complex interaction between shooter and goalkeeper.

“Usually, a player’s performance is constrained by biomechanical trade-offs but each player has a range of strategies to overcome these,” he said.

“For example, if a shooter kicks at a high speed, accuracy is decreased, and if a goalkeeper moves early, the probability they’ll move in the correct direction is reduced.”

The discovery arrived a day too late for English captain Harry Kane – who fired a penalty shot over the cross bar to consign England to yet another World Cup heartbreak in their 2-1 loss to arch-rivals France early Sunday in Qatar.

Wilson said every player, including international stars like Kane, Cristiano Ronaldo and Lionel Messi, has a range of kicking speeds and areas of the goal in which they are naturally better or worse.

“We wanted to find out how even the best footballers could improve their chances of penalty success,” he said.

“Previous models have often focused either on kickers or goalkeepers independently but ours examines the strengths and weaknesses of both, making it more accurate and much simpler.”

By taking into account every individual’s range of possible shot speeds, target location, footedness and kicking technique, the research model provides a detailed assessment of penalty taking possibilities and equips players with a range of strategies.

For example, a striker might have a different plan against an average keeper who tends to move a fraction of a second before the ball is kicked compared to one who tends to move later.

Wilson said the model would potentially become more important as the World Cup progresses through the finals rounds, and more penalty shootouts are likely.

“Penalties are the single-most important method of scoring a goal in football,” he said.

“They are the only time in a match where a goal kicker and a keeper are matched one-on-one.”

Since 1986, 39 per cent of World Cup finals series games have involved a penalty kick or been decided by a shootout, including the 1994 and 2006 deciders.

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