1998 Chase Championships – Singles
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Martina Hingis defeated Lindsay Davenport in the final, 7–5, 6–4, 4–6, 6–2 to win the singles tennis title at the 1998 Chase Championships.
Jana Novotná was the defending champion, but lost in the first round to Steffi Graf.
This marked the last WTA Championships final to be best-of-five-sets.
Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
- United States Lindsay Davenport (final)
- Switzerland Martina Hingis (champion)
- Czech Republic Jana Novotná (first round)
- Spain Arantxa Sánchez-Vicario (first round)
- United States Monica Seles (quarterfinals)
- France Mary Pierce (quarterfinals)
- Spain Conchita Martínez (first round)
- France Nathalie Tauziat (quarterfinals)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
- NB: The Final was best of 5 sets while all other rounds were best of 3 sets.