The Grads compete in the Central Canada Hockey League (CCHL) as a member of the East Division.

In the Summer of 1974, the residents of Navan banded together and purchased the rights of the Eastern Ontario Junior Hockey League's Rockland Boomers.

In the Summer of 1991, the Grads became the 10th team in the Central Junior A Hockey League and have been a member of the CJHL ever since.

The Grads best season came in 2002-03 when the team finished 1st overall and were major contenders to qualify for the Fred Page Cup.

Claude Giroux made his rookie debut with the Grads in 2005, and he was selected by the QMJHL's Gatineau Olympiques after having been passed over at the Ontario Hockey League 2005's draft.