Dunn reached her peak in 1994, achieving her lifetime bests at that years Commonwealth Games in Victoria. In the 100 metres she won a bronze medal in 11.23 secs, having run her pb of 11.15 secs in the semi-finals. In the 200 metres, she narrowly missed a medal running another lifetime best of 22.69 secs. These times would remain the best sprint times of the decade by a British woman. She added another bronze in the sprint relay. In 1995, she competed at her fourth World Championships in Gothenburg, reaching the semi-finals in the 200 metres. She earned selection for the 1996 Olympic Games, but was forced to withdraw due to illness. As of 2019, Dunn ranks 10th on the UK all-time list at 100 metres and 12th at 200 metres.