The Lockerbie man is currently representing team Scotland as skip at the 2017 championships in Edmonton, Canada.
The top athlete already has two gold, two silver and a pair of bronze medals from the annual championships.
But he says his team must raise their game if they are to creep higher up the leader board.
The championships kicked off on Saturday but by Thursday morning (UK time) Team Scotland were lagging behind at joint sixth of the leader board, along with China, Italy and Norway, after four wins and five loses.
Speaking this week, he said: “We’ve just got to keep churning out some wins and try to drag ourselves up the table.
“All we know is – we’ve got to keep winning. Every team has played extremely well – that’s the standard of the tournament. We need to raise our game to another gear.”
Thursday morning’s league table showed an undefeated Canada on top, followed by Sweden and Swititzerland.
With team Russia lagging behind in last place, after failing to win a single game.
Games continue today.
