Yasutaka Uchiyama
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Yasutaka Uchiyama (内山 靖崇, Uchiyama Yasutaka, born 5 August 1992) is a Japanese tennis player playing on the ATP Challenger Tour. He achieved career-high ATP singles ranking of world No. 162 on 31 July 2017 and doubles ranking of No. 102 on 20 August 2018.

As a junior Uchiyama compiled a win/loss record of 99–61 (and 77–56 in doubles), reaching as high as No. 12 in the combined world rankings in March 2010. He reached the final of the 2009 Australian Open Boys' Doubles with Mikhail Biryukov, losing to Francis Casey Alcantara and Hsieh Cheng-peng in the final.

Uchiyama has won eight ITF Futures singles title and reached the final of the Lexington Challenger in August 2015, losing to John Millman in three sets.

Uchiyama made Davis Cup debut for Japan in February 2013, Asia/Oceania Zone Group I first round against Indonesia in Tokyo. At 2014 Davis Cup World Group first round against Canada in Tokyo, He played the doubles rubber pairing Kei Nishikori, winning over Canadian pair Daniel Nestor and Frank Dancevic. Japan defeat Canada with 4-1 to advance to the quarterfinals in the World Group for the first time ever.