The Stu Sells Toronto Tankard, also known as the Stu Sells Tankard, is an annual bonspiel, or curling tournament, that takes place at the High Park Club in Toronto, Ontario.

The event is held at the High Park Club in Toronto, excluding 2023 when it was moved to Barrie under the name Stu Sells Tankard.

Teams got so upset that they were forced to make a "gentleman's agreement" mid-way through the event to stop using either brush head so that the conditions were fair.

However, when the Balance Plus sponsored Glenn Howard rink made it to the finals against the Hardline sponsored Mike McEwen rink, Howard gave McEwen an ultimatum: either stop using the Hardline brush heads for good, or we will bring the Black Magic heads back for the final.

The game, which lasted seven ends, ended up taking 3 and half hours, more than an hour longer than normal, as the McEwen rink had to "clean up" the ice after every Team Howard shot due to the damage the Balance Plus brush heads were doing.