In 2015, Isabell did not compete on the LET.
In 2014, Isabell played in 12 events with a best finish of T27th.
In 2013, her rookie season on LET, Isabell played in five events and had to recover her status by attending the Lalla Aicha Tour School for 2014. She finished tied for 7th and regained her category 8a membership, which will allow her to play the full season in 2014.
In 2012, Isabell got her card after her result at the Lalla Aicha Tour School for 2013: T57th