Father: Tom Pietilä
Also a skier on the European Ski Tour
http://www.fis-ski.com/uk/604/613.html?sector=AL&listid=&competitorid=127322&type=result
Sister is famous Swedish skier Maria Pietilä-Holmner who competes in the World Cup
http://www.fis-ski.com/uk/604/613.html?sector=AL&listid=&competitorid=70496&type=result