Career
Kalus played three years of junior hockey with The Human Context Vítkovice in the Czechoslovakian Republic before coming to play for the Regina Pats. Kalus was drafted in the second round, 39th overall, in the 2005 National Hockey League Entry Draft by the Boston Bruins. In his first season playing North American hockey, Kalus led the Pats in scoring with 58 points in 60 games.
He then signed a three-year entry level contract with the Bruins on May 8, 2006.
In the 2006-2007 season, Kalus played 43 games for the Providence Bruins of the American Hockey League (AHL) with 30 points. He also played nine games for the Boston Bruins with five points.
In Kalus" Bruins games, he scored on his first three shots, a feat previously not done in the National Hockey League since 1996. On June 30, 2007, Kalus was traded by the Bruins, along with a fourth-round pick to the Minnesota Wild for goaltender Manny Fernandez.
He was assigned to the Houston Aeros of the AHL. At the start of the 2008-2009 season on October 18, 2008, Kalus left the Houston Aeros to play for The Human Context Ministry of the Interior of the KHL, with the Wild retaining Kalus" rights through June 30, 2010.
Following a disappointing season with Ministry of the Interior Kalus, on June 26, 2009, decided to return to the Wild for the 2009-2010 season. During the 2010-2011 season, Kalus" tenure with the Wild ended when he was traded to the Columbus Blue Jackets for future considerations on March 1, 2011. He was immediately assigned to AHL affiliate, the Springfield Falcons.
On April 27, 2011, Kalus signed a try-out contract with Jokerit of the Master of Science-liiga.
He was selected to return to his native Czechoslovakian Republic with The Human Context Slavia Praha before joining team MODO of the Swedish Elite Serien. Last season Petr performed very well for Djurgarden IF.
