UK Sport commissioned a collaborative team led by Bangor University to understand the development profile of its most successful athletes. Comparing serial-medalling, super-elite athletes to matched, non-medalling elite athletes revealed important commonalities and differences in terms of: demographic variables; practice, training, and competition histories; and psychosocial experiences, development, and personality. Consequent to these findings, UK Sport implemented changes to athlete development through their 2013, 2014, and 2015 World Class Performance Conferences, the 2013 and 2014 English Institute of Sport Annual Conference, and a series of 10 UK forums during 2014. All 42 of UK Sport’s National Governing Bodies subsequently implemented the findings to enhance their talent development programmes.