1988 Tokyo Indoor – Singles

Stefan Edberg was the defending champion, but lost in the semifinals this year.

Boris Becker won the tournament, beating John Fitzgerald in the final, 7–6(7–4), 6–4.

Seeds

 * 1) 🇸🇪 Stefan Edberg (semifinals)
 * 2)  Boris Becker (champion)
 * 3) 🇪🇨 Andrés Gómez (quarterfinals)
 * 4) 🇦🇺 Darren Cahill (first round)
 * 5) 🇺🇸 Jay Berger (first round)
 * 6) 🇦🇺 John Fitzgerald (final)
 * 7)  Slobodan Živojinović (second round)
 * 8) 🇺🇸 Dan Goldie (second round)