2004 - Played first event of career on ITF Circuit in Japan (as WC).
2005 - Played first Tour main draw at Tokyo [Japan Open], falling 1r (as WC); fell in Tour qualifying twice; continued to play on ITF Circuit.
2006 - Played second Tour main draw at Birmingham, reaching 3r (l. to Bartoli); fell in Tour qualifying twice (incl.
US Open); won two singles titles on ITF Circuit.
2007 - QF twice, at Bali and Seoul; reached 3r once; fell 1r three times (incl.
Wimbledon) and in Tour qualifying five times (incl. other three majors); won one singles title and two doubles titles on ITF Circuit.
2008 - First Top 100 season; reached 2r six times (incl. Olympics); fell 1r five times (incl.
Roland Garros) and in Tour qualifying 13 times (incl. other three majors); won three singles titles on ITF Circuit; made Top 100 debut on April 14 (after Amelia Island; rose from No.114 to No.99).
2009 - First Top 100 season; SF twice, at Strasbourg (d. No.3 seed Peng en route; ret. vs. Hradecka w/left thigh strain) and Guangzhou (as No.7 seed, l. to No.8 seed Brianti); QF once, at Auckland (as qualifier, d. No.4 seed Wozniak en route; ret. vs. Keothavong w/left hamstring strain); reached 2r twice; fell 1r 16 times, incl. all four Grand Slams, at
Australian Open (l. to Malek),
Roland Garros (l. to Garbin),
Wimbledon (l. to Rezai) and
US Open (l. to No.24 seed Cirstea); played all four majors in a season for first time; fell in Tour qualifying three times; member of Japanese Fed Cup team that l. to Serbia 4-1 in World Group II (went 0-2); won one doubles title on ITF Circuit; ret. in Rome 2r w/left thigh strain and in Los Angeles 1r w/GI illness.
