The Rattlers compete in the Canadian Elite Basketball League (CEBL), playing their home games at the SaskTel Centre.

[5] Ahead of their inaugural season, the Rattlers purchased a hardwood court from the Toronto Raptors and installed it at their home in the SaskTel Centre, along with shot clocks and net stands.

They beat the Edmonton Stingers in the semi-final, 85–83, and then the Hamilton Honey Badgers 94–83 in the final to capture the league's first championship.

[12] Team captain Alex Campbell was named Most-Valuable-Player of the 2019 playoffs, while the championship final marked the final game of local Michael Linklater's career; the veteran, who had helped lead the Huskies to a national U Sports basketball title in 2010 alongside Jockims, announced his retirement after the game.

[5] After the season, Jockims announced that he was stepping down from his roles as head coach and manager, but would stay with the organization as an advisor.

It was ultimately played as a 6-game round-robin tournament in St. Catharines, Ontario; the Rattlers finished in last place with a 1–5 record, eliminated from contention with a loss to the expansion Ottawa BlackJacks.

[23]The Rattlers struggled through the first half of the 2023 season, and after losing seven games in a nine-game stretch, the team fired Demopoulos on 6 July.

[24] The team had a 4–3 record under Massey, but were eliminated from playoff contention with a 92–89 loss in their final regular season game against the Calgary Surge.