With more than 10 000 wins, he is the most victorious harness driver in Scandinavia. Kontio started his career in late 1960"son Since 2000 he has lived in Sweden.
Kontio"s daughter Anna-Julia Kontio is a successful Finnish equestrian in Show jumping.
Finnish Trotting Derby: 1993, 1994, 1996, 1997, 1999, 2009, 2011 Finnish Trotting Criterium: 1975, 1992, 1993, 2008, 2010 The Finlandia Race: 1985, 1986, 2007 Kuninkuusravit: 2015 Swedish Trotting Derby: 2008, 2012 Swedish Trotting Criterium: 2009 Hugo Åbergs Memorial: 1995 Åby Stora Pris: 1993, 2001, 2013 European Trotting Derby: 1992 5-year-old European Championship: 1994 Grand critérium de vitesse de la Côte d"Azur: 1995, 2008 Grand Prix du Sud-Ouest: 1996, 2000 Critérium Continental: 2004 Gran Premio Tino Triossi: 2001, 2005 Gran Premio Orsi Mangelli: 2003 Gran Premio delle Nazioni: 2008, 2009 Premio Costa Azurra: 1995, 1999 Grote Prijs der Giganten: 1985, 1986, 1993 Graf Kalman Hunyady Memorial: 1998, 2000 Copenhagen Cup: 1992 Grosser Preis von Bild Hamburg: 1986, 1995.
