Head to head
Rivalry summary
Koji Watanabe and Giuseppe Merlo met 1 times on the ATP tour between 1968 and 1968. Koji Watanabe leads the head-to-head 1–0 against Giuseppe Merlo.
1
Clay
0
Koji Watanabe's wins on the left · Giuseppe Merlo's on the right · bar lengths share one scale
All meetings (1)
| 1968 | Gstaad | Clay | R32 | Koji Watanabe | 1-0 RET |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.