The 1999 Japan Open Tennis Championships was a tennis tournament played on outdoor hard courts at the Ariake Coliseum in Tokyo, Japan that was part of the International Series Gold of the 1999 ATP Tour and of Tier III of the 1999 WTA Tour. The tournament was held from April 12 through April 18, 1999. Fifth-seeded Nicolas Kiefer and second-seeded Amy Frazier won the singles titles.
Nicolas Kiefer defeated Wayne Ferreira, 7âÂÂ6<sup>(7âÂÂ5)</sup>, 7âÂÂ5
Amy Frazier defeated Ai Sugiyama, 6âÂÂ2, 6âÂÂ2
Jeff Tarango / Daniel Vacek defeated Wayne Black / Brian MacPhie, 4âÂÂ3, retired
Corina Morariu / Kimberly Po defeated Catherine Barclay / Kerry-Anne Guse, 6âÂÂ3, 6âÂÂ2
The following players received wildcards into the singles main draw:
The following players received wildcards into the doubles main draw:
The following players received entry from the singles qualifying draw:
The following players received entry as lucky losers: