 Rock Sand's winning prize money of £19,719 made him the highest earner of the British season ahead of the filly Pretty Polly.He was kept in training until the spring of 1905 with the aim of running in the Ascot Gold Cup, but persistent tendon trouble forced his retirement.Despite winning more top class races than most Derby winners, Rock Sand was never rated very highly, although it was acknowledged that he was "unmistakably... a high-class racehorse".