George suffered a traumatic injury to his left leg/ankle when he was two and a half years old. He has reduced range of movement, his left leg is longer than his right, and his left foot is three shoe sizes smaller than his right. He has zero inversion/eversion movement in his left ankle. He first started triathlon in 2009 following his leg lengthening operation. In 2013 he won his first major medal, a bronze at the ITU World Championships in London - at 17 years-old that made him the youngest paratriathlon medallist ever.