The scene was the Darius and Girenas Stadium in Kaunas, the year was 2009, the race was the final of the women's 400m hurdles and the occasion was the European Athletics U23 Championships. As the runners hit the home turn, Perri Shakes-Drayton, of Great Britain, led from her teammate Eilidh Child and it was not long before the pair were celebrating gold and silver standing next to each other on the podium.