Hammond was introduced to the Rubik's Cube in 1979 by Peter Horrill, head of mathematics at Nottingham High School.
[2] Hammond used a computer to determine an upper bound of 21 moves for the Rubik's Cube U group.
[7] Hammond solved the cube on other television shows including The Paul Daniels Magic Show, Midlands Today, ATV Today, as well as appearing on The Adventure Game with Graeme Garden, Carol Chell and Lesley Judd on 2 November 1981.
He also started Intelligent Shopping, a company that created software for purchasing highly secure products over the Internet in the same year.
[10] He finished second in the Victor Daly KO Teams at the summer American Bridge Association (ABA) national meet in 2006.
In 2006, at the ACBL NABC meet in Chicago, he won the Mini-Spingold II teams-of-four, another tournament for players with no more than 1500 masterpoints.