[1] He spent his childhood in Auckland and was educated at St Peter's College.
Lewis coached Michael Stich through his win at Wimbledon over Boris Becker in 1991.
After Lewis stopped coaching Stich he returned home to New Zealand and started up a junior development programme with his brother Chris.
This programme developed many top juniors in Auckland, the most notable being Marina Erakovic.
Lewis now lives in Auckland, New Zealand with his wife Ann-Maree, his son Tyler, and his daughter Amber.