Wassl was then stepped up in distance for the 204th running of the Epsom Derby over one and a half miles, in June. With Murray again in the saddle he started the 10/1 fifth choice in a 21-runner field but tired from half way and finished fourteenth behind Teenoso. He was tried over the distance again in the Irish Derby on much firmer ground at the Curragh on 25 June and finished fifth behind Shareef Dancer, Caerleon, Teenoso and Quilted. Wassl was brought back in distance to around one mile for his next two races and ran creditably in defeat, running third to Noalcoholic and Tolomeo in the Sussex Stakes at Goodwood on 27 July and third again, behind Luth Enchantee and L'Emigarnt in the Prix du Moulin at Longchamp on 4 September. Less than two weeks after his run in France he was sent to Ireland and stepped back up in distance for the Joe McGrath Memorial Stakes over ten furlongs at Leopardstown Racecourse and ran second to the five-year-old mare Stanerra. On his final appearance of the season, in the Champion Stakes at Newmarket on 15 October he ran poorly and came home eighteenth of the nineteen runners behind Cormorant Wood.
