On August 18, 2019, the Shamrocks became the fourth team in Alberta's history to win the Founders Cup national lacrosse championship.

In 2019, they won their second consecutive Larry Bishop Memorial Cup as RMLL champions by sweeping the Fort Saskatchewan Rebels in two games.

The Shamrocks finished the round robin in second with a 5-1 record, only losing to Ontario's Six Nations Rebels.

In the gold medal game, the Shamrocks built up a five-goal lead on the Rebels going into the third and rode it to a 16-15 win.

[3][4][5][6] After the Enoch Tomahawks, Edmonton Miners, and Calgary Mountaineers, the Shamrocks are the fourth Albertan team to ever win the national Junior B title.