The under–25 age group events were established in 1998 and continue today. From 2000 until 2019 there were disciplines at senior level. In 2019, the IIBC came to an agreement with the
World Bowls organisation. The agreement was to merge their two international indoor championships, the IIBC Championships and the
World Cup Singles. The new event would be called the
World Bowls Indoor Championships. In 2004, the mixed pairs event was added to the under 25 championships for the first time. In 2005,
Guernsey hosted the under 25 championships for the first time. In 2012,
Amy Stanton became the first female to win the women's title three years running. In 2014, Chloe Watson became the first Irish and youngest ever winner of the women's title at the age of 17. == Past winners ==