Per-Olof "Posa" Serenius (born 9 March 1948 in Hedemora

Hedemora

Hedemora is the oldest locality in Dalarna County and the seat of Hedemora Municipality, Sweden, with 15,164 inhabitants in 2011.Despite its small population, Hedemora is for historical reasons normally still referred to as a city...

, Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

) is a Swedish ice speedway

Ice speedway

Ice Speedway is a developed form of Speedway racing, featuring racing on frozen surfaces. The sport uses bikes enhanced for the terrain. Participants can compete at international level.- Outline :...

 driver who has won gold in the World Championships a number of times. In 2009, he won his 20th gold medal in the Swedish Championships. His list of accomplishments includes two individual golds in the World Championships in 1995 (Inzell

Inzell

Inzell is a municipality in the district of Traunstein in Bavaria, Germany. It is known for the Eisstadion Inzell, an outdoor artificial ice rink that has been used for many international speed skating championships....

) and 2002 (Lillehammer

Lillehammer

is a town and municipality in Oppland county, Norway, globally known for hosting the 1994 Winter Olympics. It is part of the traditional region of Gudbrandsdal. The administrative centre of the municipality is the town of Lillehammer. As of May 2011, the population of the town of Lillehammer was...

) and three team golds in 1985, 1995, 2002. He participated in the documentary film Icy Riders from 2008.