Jonathan manages computers for the Isaac Newton Institute for Mathematical Sciences in Cambridge. His interest in Go began at university, with the discovery, in a secondhand bookshop, of Kaoru Iwamoto's introductory guide to the game. He attended the local Go club and soon got to dan level. As well as playing Go, he enjoys Ballroom and Latin American Dancing.
Jonathan is a member of the Cambridge Club, represented the UK at the WMSG 2008 in Beijing and has been BGA Secretary since 2010.