Her teammates while playing for New Zealand included, among others, Rita Fatialofa, Margaret Forsyth, Yvonne Willering and Waimarama Taumaunu.

This included New Zealand winning the 1989 World Games title and defeating Australia 3–0 in a home series of matches.

[1][8][9][10][11] Between 1999 and 2000 Gunson coached Waikato Bay of Plenty Magic in New Zealand's Coco-Cola Cup.

[12][13] Between 1999 and 2008 Gunson served as head coach and/or director of netball for Team Bath.

During her time with Team Bath she helped mentor the next generation of English netball coaches, including Tamsin Greenway and Jess Thirlby.

In 2019 Team Bath renamed the trophy awarded to the winners of their pre-season tournament after Gunson.

She was the England head coach at both the 2002 Commonwealth Games and 2003 World Netball Championships.

She later worked as a Coaching Consultant at the New Zealand Academy of Sport North Island.