 Hammond was the fastest qualifier for the first British Rubik's Cube Championship when he won the Midlands heat of the British Rubik's Cube Championship with a time of 35.38 seconds but did not win the event.Hammond used a computer to determine an upper bound of 21 moves for the Rubik's Cube U group.On 24 January 1981 Hammond appeared on BBC TV's live Saturday morning show "Multi-Coloured Swap Shop" with Erno Rubik and solved the
Rubik's Cube in 37 seconds.