Katie Cottrill/Shawn Cottrill (Belgrave, ON) lost 5-3 to Tori Koana/Go Aoki (Karuizawa, JPN) in the Final of the Palmerston Mixed Doubles Spiel, held November 3 - 5, 2023 at the Palmerston Curling Club in Palmerston, Canada. To advance to the championship game, Cottrill/Cottrill won 9-6 over Mackenzie Kiemele/Graham Singer (Toronto, ON) in the semifinals of the 2023 Palmerston Mixed Doubles Spiel in Palmerston, Ontario, Canada; and won 7-4 over Megan Smith/Doug Thomson (Newmarket, ON) in the quarterfinals. of the 2023 Palmerston Mixed Doubles Spiel in Palmerston, Ontario, Canada;
 
Cottrill/Cottrill finished 3-0 in the 23-team qualifying round. . In their opening game, Cottrill/Cottrill defeated Anne Pifer/Neil Pifer (Charlotte, NC) 7-4, then won 8-6 against Hanna Davis/Steve Davis (Mississauga, ON) and 8-4 against Anneka Burghout/Marty Thompson (Toronto, ON) in their final qualifying round match.
 
With their runner-up finish at the Palmerston Mixed Doubles Spiel, Cottrill/Cottrill take home 11.000 world rankings points along with the $1,000CDN prize, remaining in 68th place overall on the World Ranking Standings with a net gain of -4.618 after improving upon their best so far this season. Cottrill/Cottrill ranks 103rd overall on the Year-to-Date rankings with 4.500 points earned so far this season.