After two seasons in the CPJHL, the Sharpshooters joined the Greater Metro Junior A Hockey League (GMHL) for 2018–19.
[1] The organization also fielded an U18 team in the National College Prospects Hockey League (NCPHL) that retained the Ottawa Sharpshooters name.
The made it to the inaugural championship game where they defeated the regular season champion Muskoka Wild 4–3 in overtime.
However, it appears this game was never played and EOHA was then scheduled to face the top-seeded Smiths Falls Settlers.
[10] On 3 January 2020, before the GMHL was to resume play after the winter the break, the league president announced the Sharpshooters had been folded by the owner.