 A week later he was moved up in distance to contest the inaugural running of the Lingfield Derby Trial over one and a half miles.In a strong field which included the Aga Khan's well-regarded colt Firdaussi, April The Fifth displayed form well in advance of anything he had previously shown to win comfortably by two lengths.The win saw him enter contention for the Derby, although some questioned whether Walls had the necessary experience and expertise to prepare a horse for the most important race of the year.