For 10 seasons prior to 2010, the Hornets operated as the Oakville Jr. Ice, an affiliate of the senior team of the same name under the ownership of businessman Bill Metcalfe. For the 2010–11 season, the Oakville Hornets Girls Hockey Association (who held the team's league registration rights) removed Metcalfe and rebranded the team as the Jr. Hornets, citing a desire for their junior club to be more closely related to the youth teams they operated.[1]
After beginning the season with a 22-game unbeaten streak,[3] the 2014–15 Hornets were regular season champions and made the league semi-finals for the first time.[4][5] They would go on to earn a bronze medal before winning the Ontario Women's Hockey Association provincial championship.[6]
In the 2015–16 season, the Hornets finished in second at the provincial championship.[7]
Bolstered by the addition of Lexie Adzija, the leading scorer from the previous year's Devilettes, the 2016–17 Hornets began the season on a 17-game unbeaten streak, eventually losing to the Mississauga Jr. Chiefs.[8][9] They would go on to win a 'triple crown', finishing first the regular season standings, winning the league playoffs (their first league title), and earning gold at the provincial tournament.[8][10] Team captain Emma Maltais would win the league scoring title.[7]
As captain in the 2017–18 season, Sarah Fillier led the league tournament in scoring with 12 points in 10 games, and was named MVP of the provincial tournament. Oakville would come just short of repeat championships, losing 1–0 to the Toronto Jr. Aeros in the fourth straight league finals between the two clubs before earning silver at the provincial championship.[7][11]