In 2006, she won the silver medal in the 53 kg weight class at the 2006 Commonwealth Games. It was her first major achievement at an international competition.

Toua gave birth to her first child in 2007 to husband, Mavera Gavera. She now has two children, Paul and Ani-Geua. She owns her own weightlifting club in Port Moresby.

In 2018, competing in her third games in the Gold Coast she placed second once again for her second Commonwealth games silver and third medal overall. She was 10 kilos behind the gold medalist after failing her last two lifts. A month after the games ended the International Weightlifting Federation, in June, announced that the original winner, Khumukcham Sanjita Chanu of India, tested positive for testosterone from her A sample after the 2017 World Championships. The IWF had stated that if the Indian weightlifters B sample also returns positive. In January 2019 the IWF has revoked the provisional suspension of Chanu and let to keep her gold medal.