The following year at the same event he reached the quarter-finals, as he did in Cincinnati in 1972, Cincinnati and Hilversum both in 1974, and the Tokyo Outdoor in 1979.
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The right-handed resident of Tokyo best doubles results were reaching the final of the Osaka Grand Prix in 1973, partnering Aussie legend Ken Rosewall, as well as the Denver WCT final in 1974, partnering Mark Cox.
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Kamiwazumi is tied for the most years played on the Japanese Davis Cup team, 12, a record he shares with Gouichi Motomura.
In the next round they had a walkover win over the Japanese pair, Jun Kamiwazumi and Toshiro Sakai.
Jun Kasai | Jun'ichirō Tanizaki | C-jun | Jun Senoue | Jun Maeda | Jun Akiyama | Jun Shibata | Jun Lana | Jun Jin | Xie Jun | Ma Jun | Liu Jun, Prince Shixing | Lee Dong-Jun | Jun Togawa | Jun Miyake | Jun Märkl | Jun Kaneko | Jun Kamiwazumi | JUN | Japanese aircraft carrier Jun'yō | Sima Jun (Jin Dynasty) | Sima Jun | Nakagawa Jun'an | Ma Jun (environmentalist) | Lee Seung-Jun | ''Jun'yō's'' | ''Jun'yō'' | Jun Suzuki | Jun Sasaki | Jun Murai |