They played in the Greater Metro Junior 'A' Hockey League.

In April 2008, it was announced that Oro-Medonte had received its first junior hockey club since 1992.

The name pays homage to Oro's long hockey history, and the team's predecessor the Oro 77's who participated in the Georgian Bay Junior C Hockey League from 1977 until 1992.

[1] On September 15, 2008, the Oro-Medonte 77's played their first ever GMHL game, on the road, in Richmond Hill against the Ontario Lightning Rams.

After three seasons in the GMHL, in the Summer of 2011, the 77's ceased operation.