At the 2022 Commonwealth Games, she won the gold medal in the 200 m butterfly.

She was selected for the 2022 Commonwealth Games in Birmingham, where she competed in the 200m butterfly, reaching the final and winning the gold medal.

[1][3][4] At the 2022 World Short Course Championships in Melbourne Dekkers earned a bronze medal by finishing third in the 200 metre butterfly with a time of 2:03.94.

[5] The following year at the 2023 World Aquatics Championships in Fukuoka, Japan Dekkers earned a silver medal in the 200 metre butterfly with a time of 2:05.46 when she finished second to Canadian Summer McIntosh and ahead of American Regan Smith who was third.

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