In 2015, Isabella played in 12 LET tournaments and secured her best finish of the season at the Omega Dubai Ladies Masters where she came T12. She finished the season in 58th position in the Order of Merit, winning €29,596.11.
In 2014, Isabella played in 4 LET tournaments and secured her best finish at the Sberbank Golf Masters where she came T38.
In 2013, Isabella played in 8 LET tournaments and made 3 cuts with her best result T18 at the HONMA Pilsen Golf Masters. She returned to Lalla Aicha Tour School Final Qualifying and finished 59th to regain membership in Category 9b.
In 2012, Finished 2nd on the Nordea Tour Order of Merit (Sweden) after two wins. Position at Lalla Aicha Tour School for 2013: T49.