
Japan
| Age | 84 (23-11-1941) |
| Country | |
| Birthplace | |
| Height | |
| Weight | |
| Plays | |
| Backhand | |
| Favorite Surface | |
| Coach | |
| Turned Pro | |
| Player Status | Inactive |
| year | All | hard | clay | indoor | grass |
| 1974 | 0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
| 1970 | 0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
| 1968 | 3-5 | 0-0 | 3-5 | 0-0 | 0-0 |
| Grand Slam | 0.0% | 0 / 1 |
| Masters | 0.0% | 0 / 0 |
| Main Tour | 40.0% | 4 / 6 |
| Cups | 100.0% | 1 / 0 |
| Challengers | 0.0% | 0 / 0 |
| Futures | 0.0% | 0 / 0 |
| Vs No.1 | 0.0% | 0 / 0 |
| Vs Top.5 | 0.0% | 0 / 0 |
| Vs Top.10 | 0.0% | 0 / 0 |
| Vs Top.20 | 0.0% | 0 / 0 |
| Vs Top.50 | 0.0% | 0 / 0 |
| Vs Top.100 | 0.0% | 0 / 0 |
| Overall | 37.5% | 3 / 5 |
| Hard | 0.0% | 0 / 0 |
| Clay | 37.5% | 3 / 5 |
| Indoor | 0.0% | 0 / 0 |
| Grass | 0.0% | 0 / 0 |
| Fourth | 0.0% | 0 / 1 |
| Third | 20.0% | 1 / 4 |
| Second | 75.0% | 3 / 1 |
| First | 0.0% | 0 / 1 |
![]() Isao Watanabe | Loss VIEW H2H | ![]() Jan Kodes | ||
![]() Isao Watanabe | Loss VIEW H2H | ![]() Ashley Cooper | ||
![]() Isao Watanabe | Loss VIEW H2H | ![]() Jaime Pinto Bravo | ||
![]() Isao Watanabe | Loss VIEW H2H | ![]() Nicola Spear | ||
![]() Isao Watanabe | Loss VIEW H2H | ![]() Jurgen Fassbender | ||
![]() Isao Watanabe | Wins VIEW H2H | ![]() Ian Fletcher | ||
![]() Isao Watanabe | Loss VIEW H2H | ![]() Tito Vazquez | ||
![]() Isao Watanabe | Loss VIEW H2H | ![]() Alex Kurucz | ||
![]() Isao Watanabe | Wins VIEW H2H | ![]() Matthias Mauritz | ||
![]() Isao Watanabe | Wins VIEW H2H | ![]() Kenneth Tsui | ||
![]() Isao Watanabe | Wins VIEW H2H | ![]() Henk Nijeboer | ||
![]() Isao Watanabe | Wins VIEW H2H | ![]() Hans Hartoch | ||
Shelton Shimabukuro Prediction H2H (0-0)
Johnson O'Connell Prediction H2H (0-0)
Shevchenko Sachko Prediction H2H (2-2)
Gorzny Miyoshi Prediction H2H (0-0)
Gokpinar Mckennon Prediction H2H (0-0)
Rozin Exsted Prediction H2H (0-0)
Adrian Mannarino Alex De Minaur Prediction H2H (1-4)