Paul Chamberlin

Glenn Michibata is a former professional tennis player and former head coach of the Princeton University Tigers tennis team.

Grant Connell is a former professional tennis player from Canada, and has been a real estate agent for the past 14 years in Vancouver. He specializes in West Vancouver North Vancouver and Downtown properties real estate transactions. He is considered one of the world's top doubles player from the early to late -1990s, reaching the world No. 1 doubles ranking in November 1993.

Christo van Rensburg is a former professional tennis player from South Africa.

David Rikl is a former professional tennis player from the Czech Republic. His success came mostly in doubles, winning 30 titles and finishing runner-up at the 2004 US Open and 2001 Wimbledon Championships Doubles events. He also achieved a singles ranking of world No. 41 in May 1994.

Ramesh Krishnan was the defending champion but lost in the semifinals to Scott Davis.

The 1989 Bristol Open was a men's tennis tournament played on grass courts in Bristol in England that was part of the 1989 Nabisco Grand Prix. It was the tenth and last edition of the tournament and was held from 19 to 26 June 1989. Fourth-seeded Eric Jelen won the singles title.

The 1989 South African Open was a men's tennis tournament played on indoor hard courts in Johannesburg in South Africa that was part of the 1989 Nabisco Grand Prix. It was the 86th edition of the tournament and was held from 13 through 19 November 1989. Third-seeded Christo van Rensburg won the singles title.

Dan Goldie was the defending champion but did not compete that year.

The 1989 Singapore Open was a men's tennis tournament played on outdoor hard courts at the National Stadium in Singapore and was part of the 1989 Nabisco Grand Prix. The tournament took place from 24 April through 30 April 1989. Unseeded Kelly Jones, who entered the main draw as a qualifier, won the singles title.

Rick Leach and Jim Pugh won in the final 6–3, 6–4 against Paul Chamberlin and Paul Wekesa.

Kelly Evernden was the defending champion but lost in the first round to Lars-Anders Wahlgren.

Peter Doohan and Laurie Warder were the defending champions, but only Warder competed that year with Tim Pawsat.

Steve Guy and Shuzo Matsuoka were the defending champions but did not compete that year.

Nick Fulwood is a retired British tennis player who reached the third round of the 1989 Wimbledon Championships, where he defeated Jonathan Canter and compatriot Mark Petchey before losing to Paul Chamberlin.

Robert Van't Hof was the defending champion, but did not participate this year.

Michael Kures is a former professional tennis player from the United States. He was born in Czechoslovakia, but moved to the United States at age four.

Torben Theine is a former professional tennis player from Germany.

The men's doubles tournament at the 1988 Australian Open was held from 11 through 24 January 1988 on the outdoor hard courts at the Flinders Park in Melbourne, Australia. Rick Leach and Jim Pugh won the title, defeating Jeremy Bates and Peter Lundgren in the final.