Dukes vs Kookaburra: How the Cricket Ball Differs Around the World
England and the West Indies use the Dukes ball; Australia, New Zealand and South Africa use Kookaburra; India uses SG. Each behaves differently, explaining why bowling conditions vary so much from country to country.
Three Different Balls
International cricket uses three different balls manufactured to different specifications: the Dukes (used in England and the West Indies), the Kookaburra (used in Australia, New Zealand, South Africa, Sri Lanka, Zimbabwe and associates), and the SG (used in India, Pakistan and Bangladesh). Each ball is made to ICC specifications but differs in seam height, leather quality and leather treatment — differences that profoundly affect how much the ball swings and seams.
The Dukes Ball
The Dukes ball, manufactured in England, has a pronounced seam that protrudes significantly above the leather surface. This high seam creates more friction with the air, producing greater conventional swing. It also holds its shape longer — the seam stays intact for 50-60 overs in Test cricket, continuing to assist swing bowlers well into the middle of an innings. England's conditions (overcast skies, humid air) combine with the Dukes ball's properties to create exceptional swing bowling conditions.
The Kookaburra Ball
The Kookaburra ball is used across most of the cricket world and has a lower seam than the Dukes — the seam is flatter and less pronounced. This means conventional swing occurs predominantly in the first 10-20 overs; after that, the ball typically stops swinging and becomes a flat-seam, reverse-swing ball. Australia's flat pitches and Kookaburra ball combination explains why pace bowlers like Starc and Cummins use reverse swing as their primary weapon after the first powerplay.
The SG Ball
The SG (Sanspareils Greenlands) ball used in the Indian subcontinent has a higher seam than the Kookaburra but different leather treatment than the Dukes. It tends to swing conventionally early but also produces significant reverse swing when worn — particularly on India's baked-hard pitches where the ball scuffs quickly. The SG ball's behaviour on subcontinental pitches rewards traditional seam bowling early before transitioning to a reverse swing phase when spin bowling dominates from day two onward.
Frequently asked questions
Why do different countries use different cricket balls?
Different countries use different cricket balls because of historical manufacturer relationships and preferences. England has used the Dukes ball since 1760; Australia adopted the Kookaburra for its harder leather suited to Australian conditions; India has traditionally used the SG ball manufactured in Meerut. The ICC permits different balls in different regions rather than standardising globally, though both balls used simultaneously in a match must be from the same manufacturer.
Which cricket ball swings the most?
The Dukes ball typically swings the most in favourable conditions — it has a higher seam than the Kookaburra, which creates more friction with air and produces more lateral movement. England's overcast, humid conditions further enhance swing. The Kookaburra swings in the first 20 overs but flattens quicker; the SG ball also swings early but behaves differently as it ages. The 'most swing' outcome depends on both the ball and the atmospheric conditions.