Palermaa has 13 EBT titles to his name, and was the EBT ranking champion for three consecutive years from 2007 to 2009, he also won the rankings 2011. Palermaa was also joint runner up in the 2005 EBT rankings, and runner up in the 2006 EBT rankings. Osku won his first U.S. PBA Tour title at the 2010 Geico Shark Championship, which was part of the PBA's World Series of Bowling in Las Vegas, Nevada. He has since won four more PBA Tour titles, including a major at the 2011 PBA World Championship. Palermaa has to date bowled 52 perfect games, including five in PBA Tour events. Palermaa was captain of the European team for the Weber cup from 2008 to 2012.
Achievements
2006
Palermaa won the bronze medal at the World Ranking Masters tournament. Palermaa won the 2006 AMF World Cup, defeating Norway'sPetter Hansen 2 games to 1 in the final. Palermaa averaged over 250 in the qualifying rounds, bowling 2 perfect games in the process. Palermaa was voted the 'Bowler Of The Year' by the industry writers, and was also voted 'Bowler Of The Year' in his native Finland, and 'Athlete Of The Year' in his home town, Espoo
2007
In April, Palermaa was invited for the first time to participate in the World Tenpin Masters tournament, held at the Barnsley Metrodome. Palermaa beat South Africa'sGuy Caminsky in the first round, before losing to the 2006 champion, American PBA bowler Chris Barnes in the quarter-final. Following this, Palermaa travelled to Turkey for the 4th Istanbul open, and was victorious, defeating fellow two-handed bowler Jason Belmonte from Australia in the single-game final. This win, his 5th on the European Bowling Tour and his 2nd in 2007, put him on top of the 2007 EBT rankings, narrowly ahead of 3-time EBT ranking champion, Paul Moor from England. Palermaa participated in the 2007 World Ranking Masters at the Kegel Training Centre, Lake Wales, Florida, U.S., and finished the 24 game qualifier as the number 1 seed, with an average of 241.58. He was then defeated in the quarter finals by Thomas Gross of Austria 2-0. Palermaa finished in 5th position. Palermaa has been voted Finnish 'Bowler of the Year' 2006 - 2009.
International tournament titles
2005 Super Series Tour Championships Champion 2008 European Ranking Masters Super Six Gothenburg 2009 World Ranking Masters Super Six Super Star 2010 Dubai International
European Bowling Tour titles
2005 III Catalonia Open - Trofeu Galasa Columbia 300 Vienna Open 2006 Kungsbacka International Tournament 2007 Brunswick Euro Challenge 4th Istanbul Bowling Open 2008 Brunswick Aalborg International Ebonite Lahti Open 2009 Hammer Bronzen Schietspoel Tournament
PBA Tour titles
2010 Won the Geico Shark Championship at the PBA World Series of Bowling in Las Vegas, Nevada on November 6, 2010. 2011 Won the PBA World Championship in Las Vegas, NV on November 18, 2011. This was his second PBA Tour title and first PBA major. 2013 Won the WBT Bahrain Open on March 10, 2013 for his third PBA Tour title. 2014 Won the WBT Thailand Open on August 28, 2014; his fourth PBA Tour title. 2015 Won the WBT Bowling World Open in Tokyo on July 12, 2015; his fifth PBA Tour title.
Miscellaneous
Palermaa uses the two handed "shovel" style, which gives him a high RPM rate. For certain spares and splits, he is known to throw the ball hard and straight one-handed, in an attempt at bouncing pins out the back of the pit.
