Hong Kong 1972ATP · Hard · Round of 16
6-3 8-6Player
Koji Watanabe
JPNBorn: January 19, 1942right-handed
19–2543.2% wins in the database
Latest ranking—not ranked
Best ranking—not ranked
Record19–2543.2% wins
Titles00 finals · 0 Grand Slams
Prize Money—awaiting a verified source
Height—
Birthplace—
Turned pro—
Playsright-handed
The year in motion
Season 2026
ATPno matches recorded in 2026
Koji Watanabe has not played a match in the 2026 season.
Explore the complete career →The complete career archive remains available below, with seasons, rankings and matchups.
Historical graph
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Career path
Ranking progression
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A documented week is a calendar week with at least one archived snapshot placing the player inside that range. Multiple snapshots count once; gaps are never filled. Read the methodology →
Seasons
12 most recentRecent finals
0 career titlesNo finals identified in the database.
25best-of-five matches
1reached a fifth set
0comebacks from 0–2
∞searchable situations
Performance by surface
Frequent opponents
Eddie CruzPHI2 matches2–0Francois JauffretFRA2 matches0–2Premjit LallIND2 matches1–1Allan StoneAUS1 match0–1Andres GimenoESP1 match0–1Bill BowreyAUS1 match0–1Charles Chang—1 match1–0Colin DibleyAUS1 match0–1Dick CrealyAUS1 match0–1Francois BattegayFRA1 match1–0Fred StolleAUS1 match0–1Frew McmillanRSA1 match1–0
Matches
44 foundSource dates represent the start of each tournament; daily filtering is consistent but does not claim the exact day of a round.
Hong Kong 1972ATP · Hard · Third round
6-3 6-0Wimbledon 1970ATP · Grass · First round
7-5 6-3 4-6 6-3Queen's Club 1970ATP · Grass · Second round
6-4 7-5Roland Garros 1970ATP · Clay · First round
7-5 6-3 6-1Davis Cup WG R1: BLR vs RUS 1970ATP · Round robin
9-11 6-2 6-1 3-6 6-3Davis Cup WG R1: BLR vs RUS 1970ATP · Round robin
8-6 7-9 6-4 6-0Davis Cup G2 R1: TUN vs POR 1970ATP · Round robin
6-2 6-3 6-4Davis Cup G2 R1: TUN vs POR 1970ATP · Round robin
6-3 6-3 6-1Kitzbuhel 1969ATP · Clay · Round of 16
6-4 8-10 6-2Kitzbuhel 1969ATP · Clay · Third round
5-7 6-1 6-3Gstaad 1969ATP · Clay · Third round
6-4 6-3Aix-en-Provence 1969ATP · Clay · Third round
9-7 6-3Aix-en-Provence 1969ATP · Clay · Second round
W/OWimbledon 1969ATP · Grass · Second round
9-7 3-6 9-7 9-7Wimbledon 1969ATP · Grass · First round
6-3 7-5 6-3Roland Garros 1969ATP · Clay · First round
6-1 6-1 6-1Davis Cup G1 R1: NZL vs IND 1969ATP · Round robin
6-3 6-3 5-7 6-2Davis Cup G1 R1: NZL vs IND 1969ATP · Round robin
6-2 6-3 6-4Davis Cup G2 R1: TUN vs POR 1969ATP · Round robin
6-3 6-4 6-4Davis Cup G2 R1: TUN vs POR 1969ATP · Round robin
6-2 6-1 6-2Auckland 1969ATP · Grass · Round of 16
7-5 6-4 4-6 8-6Australian Open 1969ATP · Grass · Second round
8-6 6-4 6-3Sydney 1969ATP · Grass · Third round
7-5 6-2 4-6 6-2Melbourne 1969ATP · Grass · Third round
2-6 8-6 6-4 7-5Hobart 1968ATP · Grass · Round of 16
9-7 6-2Hobart 1968ATP · Grass · Third round
7-5 6-2Davis Cup G1 R1: THA vs PAK 1968ATP · Round robin
8-6 6-1 6-2Davis Cup G1 R1: THA vs PAK 1968ATP · Round robin
6-2 3-6 6-3 6-2Hamburg Masters 1968ATP · Clay · Round of 16
6-3 6-3 7-5Hamburg Masters 1968ATP · Clay · Third round
6-1 7-5 1-6 6-4Hamburg Masters 1968ATP · Clay · Second round
6-4 7-5 6-2Amersfoort 1968ATP · Clay · Round of 16
3-6 6-3 6-4Amersfoort 1968ATP · Clay · Third round
6-3 6-4Amersfoort 1968ATP · Clay · Second round
6-1 6-1Gstaad 1968ATP · Clay · Round of 16
5-7 6-4 6-0Gstaad 1968ATP · Clay · Third round
1-0 RETDusseldorf 1968ATP · Clay · Round of 16
4-6 6-3 6-4Dusseldorf 1968ATP · Clay · Third round
0-6 6-2 7-6Wimbledon 1968ATP · Grass · First round
6-2 6-4 7-5Bristol 1968ATP · Second round
6-2 8-6Bristol 1968ATP · Third round
8-6 6-4Davis Cup G2 R1: ITA vs GEO 1968ATP · Round robin
4-6 6-2 6-0 6-2Davis Cup G1 PO: PAK vs NZL 1968ATP · Round robin
6-1 6-1 6-4