Teenoso third favourite for the Lingfield Derby Trial in May. He took the lead five furlongs from the finish and stayed on well to win by three lengths from Shearwalk. When Lester Piggott, who had won the race eight times previously, elected to ride Teenoso in the Derby, the colt was strongly supported in the betting and started 9/2 favourite in a field of twenty-one runners. Racing on the heaviest ground seen at Epsom for many years, Teenoso was among the leaders from the start. Piggott sent the colt into the lead early in the straight and he was never in
Ribero to contest the King Edward VII Stakes. Ribero was required to concede four pounds to the Epsom Derby runner-up Connaught, who beat him by twelve lengths. In the Irish Derby at the Curragh at the end of June, Ribero started a 16/1 outsider with the Derby winner Sir Ivor starting 1/3 favourite. Sir Ivor was ridden by the Irish jockey Liam Ward, while Lester Piggott, who had ridden the colt to victory in the Derby, took the ride on Ribero. Ribero turned into the straight in second place behind Giolla Mear before moving up along the rail to take the