Can You Change Bowls During a Game? The Rules Explained

Players sometimes want to change to a narrower bias, a different size or a set that feels better as conditions change. In a normal uninterrupted game, that is not permitted.

The default rule: keep the same set

Each player must use the appropriate number of bowls from the same set during the game. Under the World Bowls Laws of the Sport, changing sets during an uninterrupted game—or during a stoppage continued on the same day—normally means forfeiting the game.

Exception 1: a damaged bowl

If a bowl is damaged, the umpire decides whether replacement is needed. The replacement should come from the same set. If that is impossible, the complete damaged set may be replaced with another set. A bowl that splits after being struck also causes the end to be declared dead before the replacement procedure is followed.

Exception 2: the playing surface changes

A player may change sets when the game is moved between a vegetation surface and a synthetic or indoor surface. That exception recognises that a major surface change can make the original equipment unsuitable.

Exception 3: play resumes another day

If a stopped game is continued on a different day, a player may use a different set from the one used previously. The score resumes from the stoppage point, but the equipment choice can change.

Trial ends are more flexible

During trial ends, a player may use a combination of bowls from different sets, provided they do not use more bowls than the game format allows. This is a useful time to compare options before committing to one matched set for scoring play.

Choose before the first scoring bowl

Test grip, size and bias during practice or the permitted trial ends. Check that the serial numbers match and that the stamps meet the event's conditions of play. Once the game starts, settle into the set rather than chasing a different result through equipment.

Track the game, not the gear

WGTS offers digital scorecards and camera-assisted measurement on compatible devices. Try WGTS for iPhone or WGTS for Android.

Rules note: an umpire should decide damage and replacement questions; do not substitute a bowl informally.