In 2009, Jonasson continued to race for Elit Vetlanda Speedway in Sweden, Gorzow Wielkopolski in Poland and Edinburgh in the United Kingdom. He briefly signed as a doubling up rider for the Belle Vue Aces in the Elite League at the start of 2009 but was not used. In 2010 he rode for Swindon Robins, with short stints at Poole Pirates in 2011 and Peterborough Panthers in 2012. In May 2013 he re-signed for Poole Pirates.
Individual U-21 World Championship: 2007 - 6th place (10 points) 2008 - 8th place in Qualifying Round 4 (8 points) 2009 - Goričan - 11th place (6 pts) Team U-21 World Championship: 2006 - Silver medal (8 points) 2007 - 3rd place in Qualifying Round 1 (3 points) 2009 - Gorzów Wielkopolski - 3rd place (11 pts) Individual U-19 European Championship: 2007 - 5th place (10+1 points) Individual Swedish Championship: 2006 - 10th place 2007 - 17th place 2008 - Bronze medal 2009 - Bronze medal 2010 - 4th place 2011 - 5th place 2012 - Bronze medal 2013 - 5th place 2014 - Gold medal 2015 - 12th place Individual Junior Swedish Championship: 2005 - 12th place 2006 - Bronze medal 2007 - 11th place 2009 - Gold medal Starts in Grand Prix: General Practice Scandinavia - 2010 (IX) - 8 points (1,2,2,d,3) General Practice Challenge Vojens - 2010 (VI) - 9 points (2,2,1,1,3) General Practice Scandinavia (Målilla) - 2011 (VII) - 9 points (West,1,3,3,2,0) - came to semifinal.
