2025 Stu Sells Oakville Tankard

The 2025 Stu Sells Oakville Tankard was held from September 5 to 8 at the Oakville Curling Club in Oakville, Ontario. The event was held in a triple knockout format with a purse of $30,000 on both the men's and women's sides. It was the first Stu Sells sponsored event held as part of the 2025–26 season.

Scotland's Team Ross Whyte dominated the men's event, winning all six of their games en route to claiming the championship 7–3 over the United States' Korey Dropkin. After qualifying through the A side, the team beat Ontario's Scott Howard in the quarterfinals and Sweden's Niklas Edin in the semifinals. Team Dropkin, meanwhile, qualified through the C side before eliminating Ontario's John Epping and South Korea's Lee Jae-beom. Scotland's Kyle Waddell and Ontario's Sam Mooibroek both also qualified before losing out in the quarterfinals. It was the first time Team Whyte won the event after losing the final in 2023 to Team Bruce Mouat.

On the women's side, South Korea's Ha Seung-youn won the title for a second time by scoring three in the eighth end to beat Japan's Momoha Tabata 6–5. Team Ha also won all of their games to claim the title, taking down Ontario's Hollie Duncan and Sweden's Isabella Wranå in their playoff games. Team Tabata qualified through the B side before beating the Olympic qualified rinks of Madeleine Dupont (Denmark) and Rebecca Morrison (Great Britain). Switzerland's Xenia Schwaller and Scotland's Fay Henderson both reached the playoff round as well.