Grass Court Statistics Overview
Koji Watanabe has found grass courts difficult, recording 5–10 across 15 matches (33.3%). The numbers point to a surface that has not consistently suited the game — a key area of opportunity on the calendar.
At Grand Slam level (Wimbledon): Koji Watanabe has struggled at Grand Slam level on grass: 1–4 (20.0%) in 5 matches. The best-of-five format and elite fields make this the toughest benchmark on this surface.
By format on grass — best-of-five: 2–7 (22.2%); best-of-three: 3–3 (50.0%). Markedly stronger in three-set formats; the win rate drops noticeably in five-setters, which has direct implications for Grand Slam performance on grass.
Best season: 1969 — 4–6 (40.0%) from 10 matches. The best single-season display to date — a useful reference point as the grass record continues to develop.
Koji Watanabe Grass Court Record by Year
| Year | W | L | Win% | Titles | Finals | SF | QF |
|---|---|---|---|---|---|---|---|
| 1970 | 0 | 2 | 0.0% | 0 | 0 | 0 | 0 |
| 1969 | 4 | 6 | 40.0% | 0 | 0 | 0 | 0 |
| 1968 | 1 | 2 | 33.3% | 0 | 0 | 0 | 0 |
Recent Grass Court Matches
| Date | Result | Opponent | Tournament | Round | Score |
|---|---|---|---|---|---|
| 1970-06-22 | Loss | Ingo Buding | Wimbledon | R128 | 7-5 6-3 4-6 6-3 |
| 1970-06-15 | Loss | Stepan Koudelka | Queen's Club | R64 | 6-4 7-5 |
| 1969-06-23 | Loss | Hans-Joachim Ploetz | Wimbledon | R64 | 9-7 3-6 9-7 9-7 |
| 1969-06-23 | Win | Patrice Beust | Wimbledon | R128 | 6-3 7-5 6-3 |
| 1969-01-29 | Loss | Raymond Moore | Auckland | R16 | 7-5 6-4 4-6 8-6 |
| 1969-01-29 | Win | Graeme Elliott | Auckland | R32 | 6-3 7-5 6-1 |
| 1969-01-20 | Loss | Bill Bowrey | Australian Open | R64 | 8-6 6-4 6-3 |
| 1969-01-13 | Win | Allen Shapter | Sydney | R64 | 6-4 6-0 |
| 1969-01-13 | Loss | Andres Gimeno | Sydney | R32 | 7-5 6-2 4-6 6-2 |
| 1969-01-06 | Loss | William Coghlan | Melbourne | R32 | 2-6 8-6 6-3 7-5 |
Koji Watanabe
Matches — Grass