His breakthrough came in 2006, when he was runner-up at the Winter Series #3 in Portugal and Hansabanka Baltic Open in Latvia, before winning the Aller Masters in Denmark and the Telia Tour Final at Rya Golf Club. He topped the Nordic Golf League Order of Merit to graduate to the Challenge Tour. His best finish as a rookie on the Challenge Tour was a tie for 8th at the NÖ Open in Austria. He finished 95th in the rankings to keep playing in 2008.[4]
Leijon was runner-up to Jonas Blixt at Lyckorna Scratch in 2008, and he won the 2010 Titleist Trophy at La Manga Club in Spain.[5] In 2012, he recorded several runner-up finishes, including at the Söderby Masters and Finnish Open.[6][7] He also lost a playoff to Johan Carlsson at the Nordea Tour Championship, to finish fourth in the Nordic Golf League Order of Merit and again earn promotion to the Challenge Tour.[4]
