Simmelink won het first javelin throw competition on 1 June 1924. The athletics association organized a men’s athletics competitions including one women’s event, the javelin throw. At the end of the month she became for the first time champion of Twente. She was selected by the athletics association of Twente to compete at the international 1924 Westfalen–Twente athletics competition in Münster. She finished in this competition third behind Erna Pröschold and another German.