Ki Bo-bae

Ki's London 2012 individual final against Mexico's Aída Román finished level on sets and went to a single-arrow shoot-off, the purest pressure test archery has, where the arrow nearest the centre wins. Ki took it, adding to her team gold from the same week. She won team gold again in Rio with individual bronze, and was world champion in 2015, so the London moment sits inside a long run of delivering on the biggest days.