Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Outcome | Date | Tournament | Surface | Partner | Opponents | Score |
| --- | --- | --- | --- | --- | --- | --- |
| Winner | 7 January 1991 | Adelaide , Australia | Hard | Stefan Kruger | Paul Haarhuis Mark Koevermans | 6–4, 4–6, 6–4 |
| Winner | 25 March 1991 | Miami , US | Hard | Piet Norval | Ken Flach Robert Seguso | 5–7, 7–6, 6–2 |
| Winner | 13 January 1992 | Auckland , New Zealand | Hard | Jim Grabb | Grant Connell Glenn Michibata | 6–4, 6–3 |
| Runner-up | 6 April 1992 | Johannesburg , South Africa | Hard | Piet Norval | Pieter Aldrich Danie Visser | 4–6, 4–6 |
| Runner-up | 18 May 1992 | Rome , Italy | Clay | Mark Kratzmann | Jakob Hlasek Marc Rosset | 4–6, 6–3, 1–6 |
| Runner-up | 3 August 1992 | Summer Olympics , Barcelona, Spain | Clay | Piet Norval | Boris Becker Michael Stich | 6–7, 6–4, 6–7, 3–6 |
| Runner-up | 17 May 1993 | Rome, Italy | Clay | Mark Kratzmann | Jacco Eltingh Paul Haarhuis | 4–6, 6–7 |
| Winner | 9 August 1993 | Los Angeles , US | Hard | Michael Stich | Grant Connell Scott Davis | 7–6, 7–6 |
| Runner-up | 15 November 1993 | Antwerp , Belgium | Carpet | Javier Sánchez | Grant Connell Patrick Galbraith | 3–6, 6–7 |
| Runner-up | 16 May 1994 | Rome, Italy | Clay | Javier Sánchez | Yevgeny Kafelnikov David Rikl | 1–6, 5–7 |
| Runner-up | 15 August 1994 | Cincinnati , US | Hard | Mark Kratzmann | Alex O'Brien Sandon Stolle | 7–6, 3–6, 2–6 |
| Winner | 15 May 1995 | Hamburg , Germany | Clay | Yevgeny Kafelnikov | Byron Black Andrei Olhovskiy | 6–1, 7–6 |
| Runner-up | 23 October 1995 | Lyon , France | Carpet | John-Laffnie de Jager | Jakob Hlasek Yevgeny Kafelnikov | 3–6, 3–6 |
| Winner | 23 February 1998 | Antwerp, Belgium | Hard | Yevgeny Kafelnikov | Tomás Carbonell Francisco Roig | 7–5, 3–6, 6–2 |
| Runner-up | 27 July 1998 | Washington, D.C. , US | Hard | Patrick Galbraith | Grant Stafford Kevin Ullyett | 2–6, 4–6 |
| Runner-up | 1 March 1999 | London , UK | Carpet | Byron Black | Tim Henman Greg Rusedski | 3–6, 6–7 |
| Winner | 2 August 1999 | Los Angeles, US | Hard | Byron Black | Goran Ivanišević Brian MacPhie | 6–2, 7–6 |
| Runner-up | 9 August 1999 | Montreal , Canada | Hard | Byron Black | Jonas Björkman Patrick Rafter | 6–7, 4–6 |
| Runner-up | 25 October 1999 | Lyon, France | Carpet | Sandon Stolle | Piet Norval Kevin Ullyett | 6–4, 6–7, 6–7 |
| Winner | 24 April 2000 | Monte Carlo , Monaco | Clay | Yevgeny Kafelnikov | Paul Haarhuis Sandon Stolle | 6–3, 2–6, 6–1 |
| Runner-up | 15 May 2000 | Rome, Italy | Clay | Yevgeny Kafelnikov | Martin Damm Dominik Hrbatý | 4–6, 6–4, 3–6 |
| Winner | 19 March 2001 | Indian Wells , US | Hard | Yevgeny Kafelnikov | Jonas Björkman Todd Woodbridge | 6–2, 7–5 |
| Winner | 14 May 2001 | Rome, Italy | Clay | Yevgeny Kafelnikov | Daniel Nestor Sandon Stolle | 6–4, 7–6 |
| Winner | 17 March 2003 | Indian Wells, US | Hard | Yevgeny Kafelnikov | Bob Bryan Mike Bryan | 3–6, 7–5, 6–4 |
Question:
What is Tournament, when Date is "6 April 1992"?
Answer:
Johannesburg , South Africa