| 1998 Chase Championships | |
|---|---|
| Date | November 16 – November 22 |
| Edition | 27th (singles) / 23rd (doubles) |
| Category | Year-end championships |
| Draw | 16S/8D |
| Prize money | $2,000,000 |
| Surface | Carpet / indoor |
| Location | New York City, United States |
| Venue | Madison Square Garden |
| Champions | |
| Singles | |
 Martina Hingis | |
| Doubles | |
 Lindsay Davenport /  Natasha Zvereva | |
The 1998 Chase Championships was a women's tennis tournament played on indoor carpet courts at Madison Square Garden in New York City, New York in the United States. It was the 27th edition of the year-end singles championships, the 23rd edition of the year-end doubles championships, and was part of the 1998 WTA Tour. The tournament was held from November 16 through November 22, 1998. Martina Hingis won the singles title and earned $500,000 first-prize money. It was the last edition of the tournament to be played in the best-of-five-set format for the final which it had used since 1984.[1]
Finals
Singles
Martina Hingis defeated Lindsay Davenport, 7–5, 6–4, 4–6, 6–2.
- It was Hingis' 14th title of the year and the 39th of her career.
Doubles
Lindsay Davenport / Natasha Zvereva defeated 
Alexandra Fusai / Nathalie Tauziat, 6–7, 7–5, 6–3.
- It was Davenport's 12th title of the year and the 43rd of her career. It was Zvereva's 8th title of the year and the 81st of her career.