| Championship | Event | # | Competitors |
|---|---|---|---|
| National Team Open 2004 | Oceanman/Oceanwoman Relay | 7 |
Japan National Team
(JPN) Kozue FUJIWARA, Taemi KASAI , Yumi KATO, Sayako SUZUKI |
| National Team Open 2004 | 4x50m Medley Relay | 10 |
Japan National Team
(JPN) Yumi INAGAKI, Taemi KASAI , Fukiko SATO, Sayako SUZUKI |
| National Team Open 2004 | Rescue Tube Rescue | 11 |
Japan National Team
(JPN) Yumi INAGAKI, Taemi KASAI , Fukiko SATO, Sayako SUZUKI |
| National Team Open 2004 | 4x50m Obstacle Relay | 15 |
Japan National Team
(JPN) Kozue FUJIWARA, Taemi KASAI , Fukiko SATO, Sayako SUZUKI |