By surface
| Surface | Isao Watanabe | Kenneth Tsui |
|---|
All meetings (1)
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-03-14 | ATP | Davis Cup G2 QF: HKG vs JPN | Round Robin | — | Isao Watanabe | 6-0 | 6-0 | 6-2 |
| Surface | Isao Watanabe | Kenneth Tsui |
|---|
| Date | Tour | Tournament | Round | Surface | Winner | Set 1 | Set 2 | Set 3 | Set 4 | Set 5 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1970-03-14 | ATP | Davis Cup G2 QF: HKG vs JPN | Round Robin | — | Isao Watanabe | 6-0 | 6-0 | 6-2 |