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At the 1996 Summer Olympics in Atlanta, Georgia, she finished in sixth position (8:0848) with the 4×200 m freestyle relay, alongside Carla Geurts, Patricia Stokkers, and Kirsten Vlieghuis.
At the 1996 Summer Olympics in Atlanta, Georgia, she finished in sixth position (8:0848) with the 4×200 m freestyle relay, alongside Carla Geurts, Patricia Stokkers, and Kirsten Vlieghuis.
In Atlanta Smit was also on the women"s relay team, that ended up in fourth place (3:4240) in the 4×100 m freestyle, together with Marianne Muis, Wilma van Hofwegen, and Karin Brienesse. In her only individual start, in the 200 m individual medley, she finished in seventh position, clocking 2:16.73. Smit was married to the Dutch swimming star Pieter van den Hoogenband.
In September 2012 the couple announced their separation.