In the summer of 1980 Croatia Hamilton embarked on a new challenge. Following the lead of Ivan Hegeduš, Nikica Jurić, Janko Barić and the Pašalić brothers, the first ever men’s bowling league was formed and began play in the fall of that same year.
Due to a lack of lane availability, the league was forced to play with only six teams in its inaugural season. Consequently, there was an excessive amount of bowlers to be placed on a waiting list. This meant that immediate preparations for a second season began. The following September, 12 teams and a total of 60 men took to the lanes at Lucky Strike Bowlerama in Stoney Creek. The league has been at capacity since the beginning.
As bowling became so popular among the men, in 1984 the ladies of Croatia Hamilton decided to host a fundraising dinner to help establish a Women’s 10-Pin league. A short time later an executive was elected that included President Josie Vuksan, Vice-President Mary Grbavac, Treasurer Marica Grbavac, and Secretary Mary Bilic. Membership grew rapidly and the women’s 10-pin bowling league had six teams and 30 bowlers, and survived a successful six-year tenure.
In 1999 Croatia Hamilton organized it's first Golf Tournament, and in 2009 formed a Women's Bocce League. Ice-hockey Team HRV and softball team HammerHeads have also represented Croatia Hamilton.