Why Squash Balls Should Be Yellow

For over a century, squash has been played with a black ball on predominantly white courts. It’s a tradition rooted not in science or performance - but in history.

Today, as squash evolves into a more visual, digital, and broadcast-driven sport, that legacy choice is being challenged. A growing body of evidence suggests that the future of squash isn’t black - it’s yellow.

The Problem With Traditional Black Squash Balls

Squash is widely regarded as one of the most exciting sports to play - but one of the hardest to watch.

Traditional courts were never designed with spectators or cameras in mind. Enclosed by white plaster walls and often affected by glare from overhead lighting, they create one of the most visually challenging environments in sport.

The issues are clear:

• Low visibility for spectators: A small, fast-moving black ball becomes difficult to track against white walls and bright lighting.

• Poor video clarity: On camera, the ball often appears as a blur - especially at speeds exceeding 200 km/h.

• Glare and visual fatigue: Bright white surfaces reflect light, forcing the eye and brain to constantly adjust.

• Limited viewing angles: Traditional court design restricts perspective, making depth and speed harder to interpret.

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Even in professional settings, solutions like glass courts and white balls have been introduced purely to improve visibility for broadcast.

The core issue remains: the traditional setup was never built for how we consume sport today.

How Human Vision Detects Contrast

To understand why squash struggles visually, you need to understand how we see.

Human vision relies heavily on contrast - the difference between an object and its background. The greater the contrast, the easier it is for the brain to detect motion, track speed, and anticipate movement.

In squash:

• A black ball on a white background creates contrast - but introduces glare, which reduces clarity.

• The brain works harder to process movement in high-glare environments.

• At high speeds, low-contrast objects become significantly harder to track.

  
  

Younger players may adapt more quickly, but even then, the visual system is under strain.

When contrast is optimised and glare is reduced, something important happens:

• Players track the ball earlier

• Movement becomes more precise

• Shot execution improves

• The game feels faster but clearer

  
  

This is where modern court design and ball colour begin to change the experience entirely.

Why Yellow Works Best on Blue Courts

The combination of a yellow ball on a blue court represents the highest level of visual optimisation in squash.

Here’s why:

• Maximum contrast: Yellow stands out sharply against blue, making the ball easier to track in motion.

• Reduced glare: Darker court surfaces minimise light reflection, easing strain on the eyes.

• Improved depth perception: Variations in blue tones across walls enhance spatial awareness.

• Camera optimisation: High contrast and reduced glare allow cameras to capture the ball cleanly

  - even on mobile devices.

  
  

Lighting also plays a critical role. Professional-grade squash lighting - typically in the range of 1600–1800 lux with high colour accuracy - ensures consistent visibility across the court.

The result is a playing and viewing experience that aligns with how both humans and cameras process visual information.

What This Means for the Future of Squash

We are no longer in a purely physical sporting era - we are in a visual and digital one.

Sport today is:

• Watched on phones

• Shared on social media

• Analysed through video

• Experienced globally through streaming

  
  

For squash to grow, it must be seen clearly, understood quickly, and shared easily.

This is where the next evolution begins.

A system built around:

• Optimised ball colour

• Engineered court design

• Professional lighting

  
  

…transforms squash from a difficult-to-watch sport into one that is broadcast-ready, visually engaging, and accessible to new audiences.

This is the thinking behind SunSquash Pro - a modern approach that aligns the sport with the way the world now sees, plays, and shares it.

Because the future of squash isn’t just about performance.

It’s about visibility.