She won a silver medal with the Japan women's national basketball team at the 1994 Asian Games.

Her WNBA debut took place on June 21, 1997 in a 73 - 61 win over the Utah Starzz where she recorded 3 points in 16 minutes of playing time.

She was traded to the Phoenix Mercury on July 31, 1997 and played 12 games for them, averaging 2.8 points and 1.2 rebounds.

[2] Hagiwara was waived by the Mercury on July 31, 1998 (exactly one year after being traded to the team) and would never play in the WNBA afterwards.

Her final WNBA game was played on July 20, 1998 in a 88 - 67 win over her former team, the Sacramento Monarchs.