H2H data updated: 2026-07-18 17:48 UTC

Koji Watanabe vs Stepan Koudelka H2H: 0-1

Stepan Koudelka holds a 1–0 lead over Koji Watanabe in their ATP head-to-head. Across 1 main-draw meeting, Stepan Koudelka leads 1–0 on grass. Most recently, Stepan Koudelka won the 1970 London / Queen's Club second round 6-4 7-5.

JPN Age 84 Right-Handed
H2H
0 1
1 main draw meetings
TCH Age 81

H2H Match Log

DateTournamentCategoryRoundSurfaceWinnerScoreLoserMatch
Jun 17, 1970* London / Queen's Club ATP 250 R64 Grass Stepan Koudelka 6-4 7-5 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
Stepan Koudelka 1,526 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.

Age Koji Watanabe Stepan Koudelka
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
26 1968 6–5 54.5% 1,523 0 0
27 1969 4–10 28.6% 1,482 0 0
28 1970 0–3 0.0% 1,445 0 0
30 1972 1–1 50.0% 1,456 0 0