THE champion three-year-old in Europe in 2015 by a clear margin of six pounds, Golden Horn is one of the best racehorses that we have seen this century. He is one of only three horses ever to complete the Group 1 treble of the Epsom Derby, the Eclipse Stakes and the Prix de l’Arc de Triomphe. Now he has retired to start his stud career at Dalham Hall in Newmarket, where there are 11 stallions in 2016, including such stars as Dubawi and New Approach,