Adam Donnachie was born with amniotic band syndrome, which left both of his legs being underdeveloped. This led to minor amputations at 9 months old in 2001. He is a left leg below-the-knee and right leg through-the-knee amputee. He received his first prosthetics at two years old and his sporting journey began in 2007 after learning to swim in 1-on-1 lessons. This progressed quickly, joining his first club and starting to compete at 9 years old when he joined the Scottish Para Junior swimming squad. He made his first appearance for Scotland in Sheffield in 2012 and continued to do so until 2018. In that time, he broke multiple Breaststroke and Freestyle Scottish Records and won two Senior Medals. In 2016 he started playing Wheelchair Basketball and represented Scotland for 3 years at junior level, winning medals with the team. In 2020 he began a Sport Studies degree at Stirling University which saw him move to Stirling. In 2021 He started Athletics doing seated throws where he quickly rose to Scottish and UK number one, gaining his international Classification, Scottish and British titles and competing at the Wanda Diamond League as part of Team Scotland Achieve Programme. His goal is to represent Scotland or Great Britain at major Championships.