The Unexpected Shift in Color

Tennis fans today capture yellow balls for granted, but their introduction represented a significant turning point in the sport’s history.

For many, the color of a tennis ball is simply a given. But it wasn’t always this way: until 1970, tennis balls were white. The change wasn’t arbitrary; it stemmed from scientific research and advancements in television technology.

The Science Behind the Change

The story of the yellow tennis ball began around 1970 at the Technical University of Braunschweig. Scientists there were conducting experiments on reaction speeds to visual stimuli, using white tennis balls as part of their research. They discovered that the white balls weren’t ideal for visibility.

An interdisciplinary team from the fields of psychology, physics, photogrammetry and cartography as well as the Institute for Physical Exercise compared white balls with specimens of different colors. It soon became apparent that the yellow balls were much more noticeable – especially in the peripheral field of vision of the human eye.

The advantages of the brighter color were then confirmed in collaboration with the German Tennis Association (DTB) and the Dunlop company.

Improved Visibility for Viewers

Another key factor was the rise of color television. Yellow balls provided better contrast and improved visibility for viewers. Broadcasters and organizers wanted broadcasts to be easily accessible.

The new color scheme was first presented to the public at the German Tennis Championships in 1970. In 1972, the International Tennis Federation (ITF) officially adopted the yellow ball into its rules, replacing the white ball.

A Push for Modernization

The World Championship Tennis series, led by Mike Davies, also played a role. This competition aimed to make the sport more appealing to a wider audience through colorful clothing and rule changes, and colored balls fit that concept.

Wimbledon’s Tradition

However, the traditional tournament at Wimbledon initially resisted the change, adhering to its long-standing “everything in white” rule.

Despite the introduction of color broadcasts in 1967, Wimbledon didn’t switch to yellow balls until 1986.

Although the tournament was first broadcast in color in 1967, it took until 1986 before Wimbledon also switched to yellow balls. So Boris Becker won his first Grand Slam title with white balls in 1985.

FAQ

Why were tennis balls originally white?

Tennis balls were originally white simply because that was the standard color for available materials and manufacturing processes.

When did tennis balls officially change to yellow?

The International Tennis Federation (ITF) officially adopted the yellow ball in 1972.

Why did Wimbledon take so long to switch to yellow balls?

Wimbledon maintained its tradition of “everything in white” for many years, resisting the change until 1986.