Michal Smola was junior world champion on the short distance in 2000. With the relay he also won the title in 2000, which the Czechs defended in 2001. In 2001 he won the bronze medals on the short and long distances. From 2002 he ran in the Active World Cup.
In 2006 Smola missed a World Championship medal as fourth on the long distance behind the Finn Jani Lakanen , the Swiss Marc Lauenstein and the Russian Andrei Chramow . In the Czech season with Vladimír Lučan and Petr Losman , he had previously missed a medal at the European Championships in Otepää, Estonia by a second. At the end of the 2006 World Cup season, he finished ninth, which would remain his best place in the World Cup. At the World Championships in 2008 in the Czech Republic, he was silver medalist in the middle distance behind the French Thierry Gueorgiou . The Czech season with Jan Procházka , Smola and Tomáš Dlabaja took fourth place. At the 2009 World Championship relay race, he interrupted the race to help the injured Swede Martin Johansson together with Thierry Gueorgiou and Anders Nordberg from Norway .
Smola runs in the Czech Republic for the SKOB Zlín association in his hometown. Internationally he started for the clubs FK Friskus Varberg , Södertälje Nykvarn Orientering and IFK Mora .