Began playing tennis on clayat age 7 after father introduced him to the sport.
Speaks English, Japanese and Spanish.
Father, Paul, played college-level tennis; mother, Yasue, played basketball; sister, Kara.
Idols growing up were Roger Federer and Andy Roddick.
Favourite surfaces are hard and clay. Considers backhand as his best shot.
Favourite tournaments are the Grand Slams.
Enjoys playing ping pong, listening to classic rock music and watching movies, especially from Woody Allen.
If he wasn't a tennis player, he would have liked to have lived in the 1970s and been a musician like Jimmy Page. Loves Led Zeppelin.
(UPDATED 23 MAY 2024)
Achieved career-high No. 58 in January 2024 after reaching 2nd ATP Tour final in Auckland.
Advanced to 1st ATP Tour SF and final en route to 1st title at 2018 Istanbul to become the 2nd Japanese man in Open Era to win a tour-level title on clay (also Nishikori).
Led all players by qualifying for 9 tour-level events in 2022, including Australian Open, ATP Masters 1000 Indian Wells and ATP Masters 1000 Miami.
Also qualified at 2023 Acapulco and defeated No. 4 Ruud in 2R for biggest win of career.
Defeated 5-time champion Djokovic to reach 2018 Indian Wells 3R as Q and 5-time finalist Murray to reach 2022 Australian Open 3R as Q.
Won 17 of 21 tour-level and Challenger matches during 6-week span in 2016, defeating 2-time medallist Sock at Rio Olympics along the way.
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