In 2016 Sedney competed at the 2016 European Athletics Championships in Amsterdam in both the 100 metres and the 4 x 100 metres relay. In the 100 m she made it to the semi finals where her time of 11.44 was not enough to advance to the finals. The Dutch relay team led by Schippers, with Samuel, van Schagen and Sedney as anchor runner won the 4 x 100 meters relay with a national record of 42.04.