H2H data updated: 2026-09-03 00:00 UTC

Kenichi Hirai vs John Whitlinger H2H: 0-1

John Whitlinger holds a 1–0 lead over Kenichi Hirai in their ATP head-to-head. Across 1 main-draw meeting, John Whitlinger leads 1–0 on clay. Most recently, John Whitlinger won the 1977 Japan Open round of 64 6-0 7-6.

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Kenichi Hirai
JPN Age 76 Right-Handed
H2H
0 – 1
1 main draw meetings
John Whitlinger
USA Age 72 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
John Whitlinger 6-0 7-6 Kenichi Hirai Match data Nov 2, 1977* R64 Japan Open ATP 250 Clay

Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

Career Comparison

Player Current Peak Pts Elo W L Win % GS 1000 including documented historical predecessor categories Finals 500 including documented historical predecessor categories 250 including documented historical predecessor categories Titles
Kenichi Hirai #648 #180 0 1,503 7 32 17.9% 0 0 0 0 0 0
John Whitlinger #264 #75 0 1,630 45 77 36.9% 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 Kenichi Hirai John Whitlinger
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 — — — — — — — 1973 1–1 50.0% #143 1,506 0 0
20 — — — — — — — 1974 11–9 55.0% #85 1,579 0 0
21 1971 1–7 12.5% — 1,443 0 0 1975 6–15 28.6% #98 1,567 0 0
22 1972 2–3 40.0% — 1,466 0 0 1976 17–29 37.0% #130 1,541 0 0
23 1973 1–5 16.7% #226 1,459 0 0 1977 7–17 29.2% #127 1,512 0 0
24 1974 1–4 20.0% #228 1,438 0 0 1978 0–1 0.0% #374 1,497 0 0
25 1975 0–4 0.0% #252 1,413 0 0 — — — — — — —
26 1976 2–4 33.3% #187 1,438 0 0 1980 3–5 37.5% #264 1,495 0 0
27 1977 0–2 0.0% #220 1,420 0 0 — — — — — — —
28 1978 0–2 0.0% #496 1,413 0 0 — — — — — — —
31 1981 0–1 0.0% — 1,400 0 0 — — — — — — —

Surface Results by Age

Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.

Age Kenichi Hirai John Whitlinger
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win % W L M Win %
19 — — — — — — — — — — — — — — — — — 1973 — — — — 1 1 2 50.0% — — — — — — — —
20 — — — — — — — — — — — — — — — — — 1974 2 2 4 50.0% 2 3 5 40.0% 5 2 7 71.4% 2 2 4 50.0%
21 1971 1 4 5 20.0% 0 2 2 0.0% 0 1 1 0.0% — — — — 1975 2 3 5 40.0% 4 9 13 30.8% — — — — 0 3 3 0.0%
22 1972 1 1 2 50.0% 0 1 1 0.0% 1 1 2 50.0% — — — — 1976 8 8 16 50.0% 4 11 15 26.7% 0 2 2 0.0% 5 8 13 38.5%
23 1973 0 2 2 0.0% 1 2 3 33.3% 0 1 1 0.0% — — — — 1977 2 7 9 22.2% 3 6 9 33.3% 0 1 1 0.0% 2 3 5 40.0%
24 1974 1 1 2 50.0% 0 1 1 0.0% 0 2 2 0.0% — — — — 1978 0 1 1 0.0% — — — — — — — — — — — —
25 1975 — — — — 0 2 2 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
26 1976 0 1 1 0.0% 1 2 3 33.3% 1 1 2 50.0% — — — — 1980 1 3 4 25.0% 0 1 1 0.0% — — — — 2 1 3 66.7%
27 1977 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
28 1978 — — — — 0 1 1 0.0% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
31 1981 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 3 9 12 25.0% 2 13 15 13.3% 2 8 10 20.0% 0 2 2 0.0% — 15 24 39 38.5% 14 31 45 31.1% 5 5 10 50.0% 11 17 28 39.3%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.

Age Kenichi Hirai John Whitlinger
Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule Yr Elo P+ Serve+ Return+ PD TPW% Hard Elo Clay Elo Grass Elo Set Win % Set Margin Dec. Set Tiebreak Pressure+ Schedule
19 — — — — — — — — — — — — — — — — 1973 1506 97.9 — — — — — — — 50.0% -1.00 — — — +0.16
20 — — — — — — — — — — — — — — — — 1974 1580 113.1 — — — — +13 -57 +11 52.9% +0.08 4–3 (57%) 4–3 (57%) — +2.32
21 1971 1444 96.8 — — — — +64 — — 11.1% -2.11 1–0 0–2 — +0.42 1975 1568 124.8 — — — — -12 -22 — 30.4% -1.39 2–2 (50%) 1–6 (14%) — 0.00
22 1972 1466 108.1 — — — — — — — 45.5% -0.27 0–1 — — -0.18 1976 1541 118.0 — — — — +58 -38 — 38.0% -0.94 8–8 (50%) 8–5 (62%) — +5.18
23 1973 1460 113.9 — — — — — +51 — 31.3% -1.13 0–2 0–1 — -0.37 1977 1513 107.6 — — — — +38 -25 — 34.5% -1.43 3–6 (33%) 4–2 (67%) — +1.62
24 1974 1439 100.0 — — — — — — — 33.3% -1.42 0–2 0–1 — +0.48 1978 1498 92.7 — — — — — — — 0.0% -5.00 — — — +0.19
25 1975 1413 115.4 — — — — — — — 10.0% -2.60 — 0–1 — -0.20 — — — — — — — — — — — — — — — —
26 1976 1439 111.6 — — — — — +37 — 35.7% -0.43 — 0–1 — +0.34 1980 1495 101.6 — — — — +31 — — 38.9% -0.95 1–1 1–0 — +1.16
27 1977 1421 99.6 — — — — — — — 20.0% -2.40 0–1 0–1 — +0.09 — — — — — — — — — — — — — — — —
28 1978 1414 105.5 — — — — — — — 20.0% -2.60 0–1 — — -0.11 — — — — — — — — — — — — — — — —
31 1981 1400 96.5 — — — — — — — 0.0% -3.00 — — — +0.23 — — — — — — — — — — — — — — — —
Career — 1504 112.1 — — — — +64 +44 — 25.8% -1.50 1–7 (13%) 0–7 (0%) 88.6 +1.79 — 1630 116.6 — — — — +37 -33 +11 38.7% -0.96 18–20 (47%) 18–16 (53%) 104.2 +8.71

Career Rivalries

Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.