Rubuta ci gaba ga wannan sakin layi - 2004 ya fara Groot tare da gasar zakarun Turai na 2004
a Madrid inda ta sami nasarar lashe lambobin yabo guda uku, azurfa a cikin 4 × 100 m freestyle tare da Inge Dekker, Annabel Kosten da Marleen Veldhuis. Akwai lambar tagulla a cikin 50 m butterfly da wata tagulla a cikin 4 × 100 m medley tare da Stefanie Luiken, Madelon Baans da Marleen Veldhuis. Bayan wannan gasa ta shirya don yin gasa a Wasannin Olympics na bazara na 2004 a Athens, Girka, inda ta kasance a cikin tawagar da ta sami lambar tagulla a tseren tseren mita 4×100, tare da Inge de Bruijn, Marleen Veldhuis, da Inge Dekker.