Kammala jumla mai zuwa: A ranar 16 ga Yuni, 2021, an zabi Martens a matsayin daya daga cikin 'yan wasan farko na Netherlands 18 a wasannin Olympics na 2020, gasar wasannin Olympics ta farko ta mata ta Netherlands. A wasan farko na rukunin rukuni, Martens ta zira kwallaye na 50 a tawagar kasar da Zambia. Martens ya zira kwallaye daya a wannan wasan inda sakamakon karshe ya kasance Zambia 3<unk>10 Netherlands, wasan kwallon kafa na mata mafi girma a tarihin wasannin Olympics. A wasan rukuni na uku da na karshe na Netherlands, Martens ya ci wasu kwallaye biyu a kan China yayin da Holland ta ci gaba zuwa wasan kusa da na karshe na gasar. Sun fuskanci
Gasar cin Kofin Duniya ta Mata ta 2019 ta yi karo da Amurka, inda Martens ya rasa hukuncin a minti na 81 kuma an ci Netherlands bayan bugun daga bayan karin lokaci.