Turmann was a member of the Estonian team at the 2014 European Mixed Curling Championship, playing lead. The team finished 12th. Turmann and partner Harri Lill represented Estonia at the 2016 World Mixed Doubles Curling Championship. The team finished in 2nd place in their group with a 5–1 record, and ended up losing to China in the quarterfinals and settled for a 6th-place finish. In 2018 Marie and partner Harri Lill won Estonian nationals and represented Estonia at the 2018 World Mixed Doubles Curling Championship. They went undefeated in group play, but lost in the round of 16 to Turkey. Turmann and Lill returned to represent Estonia at the 2019 World Mixed Doubles Curling Championship. They again won their group, with a 6–1 record, and made it as far as the quarterfinals where they lost to the United States.