H2H data updated: 2026-09-05 00:00 UTC

Kenichi Hirai vs Roy Barth H2H: 0-1

Roy Barth holds a 1–0 lead over Kenichi Hirai in their ATP head-to-head. Across 1 main-draw meeting, Roy Barth leads 1–0 on hard courts. Most recently, Roy Barth won the 1971 Los Angeles Open round of 64 6-4 7-5.

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Kenichi Hirai
JPN Age 76 Right-Handed
H2H
0 – 1
1 main draw meetings
Roy Barth
USA Age 79 Right-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Roy Barth 6-4 7-5 Kenichi Hirai Match data Sep 22, 1971* R64 Los Angeles Open ATP 250 Hard

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
Roy Barth #373 #107 0 1,733 61 135 31.1% 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 Roy Barth
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
21 1971 1–7 12.5% — 1,443 0 0 1968 17–12 58.6% — 1,611 0 0
22 1972 2–3 40.0% — 1,466 0 0 1969 16–11 59.3% — 1,689 0 0
23 1973 1–5 16.7% #226 1,459 0 0 1970 13–24 35.1% — 1,576 0 0
24 1974 1–4 20.0% #228 1,438 0 0 1971 6–29 17.1% — 1,463 0 0
25 1975 0–4 0.0% #252 1,413 0 0 1972 1–26 3.7% — 1,402 0 0
26 1976 2–4 33.3% #187 1,438 0 0 1973 4–21 16.0% #126 1,355 0 0
27 1977 0–2 0.0% #220 1,420 0 0 1974 4–12 25.0% #136 1,398 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 Roy Barth
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 %
21 1971 1 4 5 20.0% 0 2 2 0.0% 0 1 1 0.0% — — — — 1968 13 6 19 68.4% 2 3 5 40.0% 2 3 5 40.0% — — — —
22 1972 1 1 2 50.0% 0 1 1 0.0% 1 1 2 50.0% — — — — 1969 5 4 9 55.6% 0 1 1 0.0% 11 5 16 68.8% 0 1 1 0.0%
23 1973 0 2 2 0.0% 1 2 3 33.3% 0 1 1 0.0% — — — — 1970 6 9 15 40.0% 3 7 10 30.0% 4 6 10 40.0% 0 2 2 0.0%
24 1974 1 1 2 50.0% 0 1 1 0.0% 0 2 2 0.0% — — — — 1971 5 10 15 33.3% 1 7 8 12.5% 0 5 5 0.0% 0 7 7 0.0%
25 1975 — — — — 0 2 2 0.0% 0 1 1 0.0% 0 1 1 0.0% 1972 0 7 7 0.0% 1 4 5 20.0% 0 1 1 0.0% 0 14 14 0.0%
26 1976 0 1 1 0.0% 1 2 3 33.3% 1 1 2 50.0% — — — — 1973 1 8 9 11.1% 0 3 3 0.0% 2 3 5 40.0% 1 7 8 12.5%
27 1977 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — — 1974 1 5 6 16.7% 1 3 4 25.0% 2 2 4 50.0% 0 2 2 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% — 31 49 80 38.8% 8 28 36 22.2% 21 25 46 45.7% 1 33 34 2.9%

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 Roy Barth
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
21 1971 1444 96.8 — — — — +64 — — 11.1% -2.11 1–0 0–2 — +0.42 1968 1611 115.9 — — — — +99 -107 -74 60.3% +0.63 1–5 (17%) — — +0.74
22 1972 1466 108.1 — — — — — — — 45.5% -0.27 0–1 — — -0.18 1969 1689 117.3 — — — — +43 — +26 54.8% +0.16 7–3 (70%) — — +0.19
23 1973 1460 113.9 — — — — — +51 — 31.3% -1.13 0–2 0–1 — -0.37 1970 1576 114.6 — — — — +64 -124 +94 38.6% -0.61 1–6 (14%) 3–1 (75%) 94.3 +2.02
24 1974 1439 100.0 — — — — — — — 33.3% -1.42 0–2 0–1 — +0.48 1971 1463 110.9 — — — — +6 -37 +100 22.5% -1.90 1–8 (11%) 1–1 — -0.59
25 1975 1413 115.4 — — — — — — — 10.0% -2.60 — 0–1 — -0.20 1972 1403 128.5 — — — — -39 +43 — 12.9% -2.60 1–6 (14%) 2–2 (50%) 97.6 -1.75
26 1976 1439 111.6 — — — — — +37 — 35.7% -0.43 — 0–1 — +0.34 1973 1355 109.0 — — — — -12 +60 +137 24.5% -1.76 1–6 (14%) 4–5 (44%) 97.0 +0.35
27 1977 1421 99.6 — — — — — — — 20.0% -2.40 0–1 0–1 — +0.09 1974 1399 109.0 — — — — -82 -14 +119 35.9% -1.21 0–4 (0%) 2–2 (50%) 97.2 +0.75
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 — 1733 119.0 — — — — +16 -49 +59 36.3% -0.98 12–38 (24%) 12–11 (52%) 92.2 +0.89

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.