1998 Franklin Templeton Tennis Classic – Singles

Mark Philippoussis was the defending champion, but lost in the second round to Tommy Haas.

Andre Agassi won the title, defeating Jason Stoltenberg 6–4, 7–6(7–3) in the final.

Seeds

 * 1) 🇦🇺 Mark Philippoussis (second round)
 * 2) 🇪🇸 Álbert Costa (quarterfinals)
 * 3) 🇸🇪 Magnus Norman (first round)
 * 4) 🇩🇪 Nicolas Kiefer (second round)
 * 5) 🇪🇸 Francisco Clavet (first round)
 * 6) 🇪🇸 Albert Portas (first round)
 * 7) 🇪🇸 Julián Alonso (first round)
 * 8) 🇦🇺 Richard Fromberg (second round)

Qualifying seeds
• # Byron Black (second round)

• # 🇪🇸 Juan Albert Viloca (second round)

• # 🇦🇺 Scott Draper (qualifying competition, lucky loser)

• # Wayne Black (first round)

• # 🇩🇪 Oliver Gross (second round)

• # 🇦🇷 Franco Squillari (qualified)

• # 🇦🇺 Sandon Stolle (first round)

• # 🇺🇸 Alex O'Brien (first round)

Qualifiers
• # 🇺🇸 Michael Joyce

• # 🇺🇸 Jan-Michael Gambill

• # 🇦🇷 Franco Squillari

• # Ramón Delgado

Lucky loser

 * 1) 🇦🇺 Scott Draper

Special exempt

 * 1) 🇨🇦 Sébastien Lareau (reached the semifinals at Philadelphia)