She is currently member of the SAC-CAS Swiss Team 2.
She is also competing in ultramarathon events.In 2015 Mathys was reprimanded for an ADRV for using clomiphene, a fertility drug which features on the WADA Prohibited List under section S4: Hormone and Metabolic Modulators.
Mathys was let off with a warning as the drug was being taken in the hope of getting pregnant.