Mike McEwen outscored Matt Dunstone 9-8 in a battle of Canadian teams on Friday at the AMJ Players’ Championship.
Dunstone stole a point in the eighth end but McEwen scored a single in the extra end for the victory.
Switzerland’s Marco Hoesli topped American Korey Dropkin 5-3 in the other early men’s game at the Mattamy Athletic Centre.
In women’s play, Sweden’s Anna Hasselborg defeated Japan’s Satsuki Fujisawa 6-3 and South Korea’s Eun-Jung Kim beat Japan’s Sayaka Yoshimura 7-3.
Three more draws are scheduled for later in the day at the Grand Slam of Curling season finale.
The playoffs start Saturday and the finals are set for Sunday.
