H2H data updated: 2026-07-19 02:51 UTC
Koji Watanabe vs Zlatko Ivancic H2H: 1-0
Koji Watanabe holds a 1–0 lead over Zlatko Ivancic in their ATP head-to-head. Across 1 main-draw meeting, Koji Watanabe leads 1–0 on clay. Most recently, Koji Watanabe won the 1969 Kitzbuhel third round 5-7 6-1 6-3.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
JPN
Age 84
Right-Handed
H2H
1
–
0
1 main draw meetings
CRO
Right-Handed
H2H Match Log
| Date | Tournament | Category | Round | Surface | Winner | Score | Loser | Match |
|---|---|---|---|---|---|---|---|---|
| Aug 14, 1969* | Kitzbuhel | ATP 250 | R32 | Clay | Koji Watanabe | 5-7 6-1 6-3 | Zlatko Ivancic | 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 |
| Zlatko Ivancic | #662 | #662 | 0 | 1,500 | 1 | 12 | 7.7% | 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 | Zlatko Ivancic | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 0–3 | 0.0% | — | 1,454 | 0 | 0 |
| 1969 | 4–10 | 28.6% | — | 1,482 | 0 | 0 | 1969 | 1–2 | 33.3% | — | 1,448 | 0 | 0 |
| 1970 | 0–3 | 0.0% | — | 1,445 | 0 | 0 | 1970 | 0–1 | 0.0% | — | 1,445 | 0 | 0 |
| 1972 | 1–1 | 50.0% | — | 1,456 | 0 | 0 | 1971 | 0–2 | 0.0% | — | 1,426 | 0 | 0 |
| — | — | — | — | — | — | — | 1973 | 0–1 | 0.0% | — | 1,420 | 0 | 0 |
| — | — | — | — | — | — | — | 1978 | 0–1 | 0.0% | — | 1,415 | 0 | 0 |
| — | — | — | — | — | — | — | 1979 | 0–1 | 0.0% | #662 | 1,410 | 0 | 0 |
| — | — | — | — | — | — | — | 1980 | 0–1 | 0.0% | — | 1,399 | 0 | 0 |