| 1998 Sybase Open | |
|---|---|
| Date | February 9–15 |
| Edition | 110th |
| Category | ATP World Series |
| Draw | 32S / 16D |
| Prize money | $315,000 |
| Surface | Hard / Indoor |
| Location | San Jose, U.S. |
| Venue | San Jose Arena |
| Champions | |
| Singles | |
 Andre Agassi[1] | |
| Doubles | |
 Mark Woodforde / Todd Woodbridge[2] | |
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 110th edition of the tournament ran from February 9 through February 15, 1998. Unseeded wildcard-entry Andre Agassi won the singles title.[3]
- ^ "1998 San Jose – Singles draw". Association of Tennis Professionals (ATP).
- ^ "1998 San Jose – Doubles draw". Association of Tennis Professionals (ATP).
- ^ John Barrett, ed. (1999). ITF World of Tennis 1999. London: CollinsWillow. p. 157. ISBN 9780002188623.