| Doubles | |
|---|---|
| 1999 Sybase Open | |
| Champions |  Mark Woodforde Todd Woodbridge [1] |
| Runners-up |  Aleksandar Kitinov  Nenad Zimonjić |
| Score | 7–5, 6–7, 6–4 |
| Draw | 16 |
| Seeds | 4 |
The 1999 Sybase Open was a men's tennis tournament played on indoor hard courts at the San Jose Arena in San Jose, California in the United States and was part of the ATP World Series of the 1999 ATP Tour. It was the 110th edition of the tournament ran from February 8 through February 14, 1999.
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.
Todd Woodbridge / Mark Woodforde (champions)
Jim Grabb / Richey Reneberg (quarterfinals) Alex O'Brien / Jared Palmer (semifinals) Brandon Coupe / 
David Roditi (quarterfinals)| First round | Quarterfinals | Semifinals | Final [1] | ||||||||||||||||||||||||
| 1 | T Woodbridge M Woodforde | 6 | 6 | ||||||||||||||||||||||||
| J Courier P Galbraith | 2 | 4 | 1 | T Woodbridge M Woodforde | 6 | 3 | 6 | ||||||||||||||||||||
 G Stafford B Talbot | 6 | 6 | G Stafford B Talbot | 4 | 6 | 3 | |||||||||||||||||||||
| P Rosner J Waite | 4 | 4 | 1 | T Woodbridge M Woodforde | 6 | 6 | |||||||||||||||||||||
| 4 | B Coupe D Roditi | 7 | 6 | 7 | D DiLucia M Sell | 4 | 1 | ||||||||||||||||||||
| B Haygarth TJ Middleton | 5 | 7 | 5 | 4 | B Coupe D Roditi | 5 | 4 | ||||||||||||||||||||
| D DiLucia M Sell | 6 | 5 | 6 | D DiLucia M Sell | 7 | 6 | |||||||||||||||||||||
 J Greenhalgh B Steven | 3 | 7 | 2 | 1 | T Woodbridge M Woodforde | 7 | 6 | 6 | |||||||||||||||||||
 F Meligeni  M Puerta | 6 | 6 | A Kitinov N Zimonjić | 5 | 7 | 4 | |||||||||||||||||||||
| J-M Gambill T Gambill | 4 | 4 | F Meligeni M Puerta | 7 | 4 | 2 | |||||||||||||||||||||
| 3 | A O'Brien J Palmer | 6 | 6 | 3 | A O'Brien J Palmer | 6 | 6 | 6 | |||||||||||||||||||
| D Bowen E Taino | 3 | 4 | 3 | A O'Brien J Palmer | 3 | 7 | 5 | ||||||||||||||||||||
| A Kitinov N Zimonjić | 6 | 4 | 7 | A Kitinov N Zimonjić | 6 | 6 | 7 | ||||||||||||||||||||
| J Gimelstob B MacPhie | 4 | 6 | 6 | A Kitinov N Zimonjić | 4 | 6 | 6 | ||||||||||||||||||||
| 2 | Jim Grabb R Reneberg | 6 | 6 | 2 | Jim Grabb R Reneberg | 6 | 1 | 4 | |||||||||||||||||||
| B Bryan M Bryan | 4 | 4 | |||||||||||||||||||||||||
Second-seeded Magnus Norman defeated Michael Chang 3–6, 6–3, 7–5 in the final to win the singles competition at the 2000 Heineken Open men's tennis tournament. Tommy Haas was the defending champion. but lost in the second round to Juan Balcells
Greg Rusedski was the defending champion of the singles event of the Heineken Open tennis tournament, held in Auckland, New Zealand, but did not compete that year.
The 1998 Sybase Open was a men's tennis tournament played on indoor hard courts at the San Jose Arena in San Jose, California in the United States and was part of the ATP World Series of the 1998 ATP Tour. It was the 109th edition of the tournament ran from February 9 through February 15, 1998.
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