H2H data updated: 2026-07-18 17:48 UTC
Koji Watanabe vs Hans Joachim Ploetz H2H: 0-1
Hans Joachim Ploetz holds a 1–0 lead over Koji Watanabe in their ATP head-to-head. Across 1 main-draw meeting, Hans Joachim Ploetz leads 1–0 on grass. Most recently, Hans Joachim Ploetz won the 1969 Wimbledon second round 9-7 3-6 9-7 9-7.
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JPN
Age 84
Right-Handed
H2H
0
–
1
1 main draw meetings
GER
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Jun 27, 1969* | Wimbledon | Grand Slam | R64 | Grass | Hans Joachim Ploetz | 9-7 3-6 9-7 9-7 | Koji Watanabe | Match data |
* Estimated match date where the exact historical date is unavailable.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 | Finals | 500 | 250 | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Koji Watanabe | #1,376 | #1,182 | 3 | 1,542 | 11 | 19 | 36.7% | 0 | 0 | 0 | 0 | 0 | 0 |
| Hans Joachim Ploetz | #281 | #65 | 0 | 1,661 | 70 | 94 | 42.7% | 0 | 0 | 0 | 0 | 0 | 0 |
Career Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Koji Watanabe | Hans Joachim Ploetz | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles |
| 1968 | 6–5 | 54.5% | — | 1,523 | 0 | 0 | 1968 | 14–11 | 56.0% | — | 1,549 | 0 | 0 |
| 1969 | 4–10 | 28.6% | — | 1,482 | 0 | 0 | 1969 | 18–16 | 52.9% | — | 1,605 | 0 | 0 |
| 1970 | 0–3 | 0.0% | — | 1,445 | 0 | 0 | 1970 | 12–17 | 41.4% | — | 1,628 | 0 | 0 |
| 1972 | 1–1 | 50.0% | — | 1,456 | 0 | 0 | 1971 | 2–5 | 28.6% | — | 1,578 | 0 | 0 |
| — | — | — | — | — | — | — | 1972 | 2–5 | 28.6% | — | 1,540 | 0 | 0 |
| — | — | — | — | — | — | — | 1973 | 2–5 | 28.6% | — | 1,531 | 0 | 0 |
| — | — | — | — | — | — | — | 1974 | 5–9 | 35.7% | #95 | 1,572 | 0 | 0 |
| — | — | — | — | — | — | — | 1975 | 13–16 | 44.8% | #76 | 1,610 | 0 | 0 |
| — | — | — | — | — | — | — | 1976 | 2–10 | 16.7% | #185 | 1,514 | 0 | 0 |