Toh Wei Soong was first exposed to swimming at the age of six, as a form of therapy, since he was diagnosed with the rare condition of Transverse Myelitis when he was two. He soon fell in love with the experience of being in water, where he faced little restriction and could do things that he could not on land. It was in the water where he felt free, and just like anyone else. Wei Soong also attributed his confidence and discipline to the training and victories he has had in swimming. In 2018, Wei Soong qualified for the Commonwealth Games and was the first para-athlete to win a Bronze medal. Wei Soong has been swimming competitively since 2013. As a student, he had been taking lesser modules in NUS in order to maintain his full training load towards Tokyo 2020. He will be completing his studies (NUS -Philosophy, Politics and Economics) by 2024. Wei Soong trains under Coach Ang Peng Siong, who has been his coach since he started competitive swimming. Coach Ang currently works with some of the sports science and medicine support outside of SSI for Wei Soongs programme.