The 1998 Chase Championships was a 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 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.
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.