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Kazuki Nishiwaki is a 31-year-old Japanese professional on the ATP tour with 11 ranking points. Nishiwaki is a right-hander with a two-handed backhand who stands 178 cm. Nishiwaki was born in Kyoto-Uji, Japan.
Nishiwaki carries an ELO rating of 1524 over 162 rated matches, strongest on hard courts (1518). 15 results currently count toward Nishiwaki's ranking total.
<a href="https://atprank.com/player/kazuki-nishiwaki"><img src="https://atprank.com/api/card/player/kazuki-nishiwaki" alt="Live tennis ranking — atprank.com" width="640" height="180" /></a>Live card — updates automatically. Free to embed with the atprank.com link.
From matches in our dataset (2023–present).
Biggest upset victories — matches Kazuki Nishiwaki won as the betting underdog, ranked by pre-match odds.
Kazuki Nishiwaki’s wins over the highest-rated opponents, by the opponent’s pre-match ELO (since 2023).
Jie CuiM25 Hong Kong 2 2023 · 7-5 6-4ELO 1557def. 
Shuichi SekiguchiM25 Sapporo 1 2023 · 0-6 7-5 6-4ELO 1539def. 
Rares Teodor PieleanuM15 Sharm ElSheikh 3 2026 · 4-6 6-1 6-4ELO 1537def. Yuki MochizukiM25 Sapporo 1 2023 · 6-1 6-3ELO 1532def. Taisei IchikawaM25 Tainan 1 2023 · 4-6 7-6(4) 3-1 ret.ELO 1523Last match Jul 1, 2026 · last win Jun 29, 2026
Kazuki Nishiwaki's most-played opponents. Open any rivalry for the full meeting record and a win-probability prediction.
Yunseong Chung
Maxim Zhukov
Digvijaypratap Singh