Career
Kemppainen competed at the 2014 Winter Olympics for Finland. He placed 9th in the qualifying round in the halfpipe, advancing to the final. He finished 8th in the final, with a best run of 78.20 points.
As of April 2014, his best showing at the World Championships is 5th, in the 2013 halfpipe.
Kemppainen made his World Cup debut in January 2006. His best World Cup overall finish in halfpipe is 2nd, in 2006-2007.
