Father, Fumio; mother, Mariko; older brothers, Jun and Ryo.
Considers hisbackhand a weapon and prefers hard courts.
Hobbies include listening to music.
Particularly fond of a hip hop artist named “Zeebra.”
(UPDATED 17 AUGUST 2020)
Broke into Top 50 and achieved career-high No. 47 on 23 July 2012 after reaching Atlanta SF. EnteredTop 100 on 4 April 2011 after winning Pingguo, CHN Challenger title without dropping a set. Finished as Japanese No. 1 in 2006 and 2007.Peaked at No. 20 in juniors on 16 December 2002.
Advanced to ATP Tour SFs at 2012 Chennai as Q and 2012 Atlanta. Earned biggest career wins over No. 17 Wawrinka in 2012 Chennai QF and No. 19 Nishikori in 2012 Atlanta QF.
Owns 1-13 record at ATP 500 event in Tokyo. Snapped 12-match losing streak at event by winning 1R match over Struff in 2019.
Reached Grand Slam 2R at 2012 Wimbledon, 2013 Australian Open, 2013 Wimbledon as Q and 2015 Australian Open. Yet to win an ATP Masters 1000 main draw match (0-6).
Boasts 398-225 record on ATP Challenger Tour with 18 titles in 31 finals. Owns 3rd-most wins and 5th-most titles in tour history. Captured most recent Challenger title at 2016 Winnipeg, CAN.