H2H data updated: 2026-09-13 00:00 UTC

Kaoru Okamoto vs Jenny Byrne H2H: 1-0

Kaoru Okamoto holds a 1–0 lead over Jenny Byrne in their WTA head-to-head. Across 1 main-draw meeting, Kaoru Okamoto leads 1–0 on grass. Most recently, Kaoru Okamoto won the 1987 Birmingham round of 64 6-3 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.

Kaoru Okamoto
JPN Age 61 Right-Handed
H2H
1 – 0
1 main-draw meetings
Jenny Byrne
AUS Age 59

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kaoru Okamoto #131 6-3 6-3 Jenny Byrne #121 Match data Jun 10, 1987* R64 Birmingham WTA 250 Grass

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
Kaoru Okamoto #225 #75 14 1,589 23 44 34.3% 0 0 0 1 0 1
Jenny Byrne #610 #45 24 1,725 59 119 33.1% 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 Kaoru Okamoto Jenny Byrne
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
13 1978 0–1 0.0% — 1,483 0 0 — — — — — — —
15 1980 0–2 0.0% — 1,466 0 0 — — — — — — —
16 1981 0–3 0.0% — 1,441 0 0 1983 0–2 0.0% — 1,477 0 0
17 — — — — — — — 1984 1–2 33.3% #141 1,488 0 0
18 1983 3–2 60.0% — 1,473 0 0 1985 4–7 36.4% #132 1,491 0 0
19 1984 0–1 0.0% #189 1,465 0 0 1986 7–12 36.8% #107 1,527 0 0
20 1985 0–1 0.0% — 1,449 0 0 1987 6–15 28.6% #144 1,496 0 0
21 1986 2–1 66.7% #151 1,479 0 0 1988 7–16 30.4% #119 1,503 0 0
22 1987 6–8 42.9% #107 1,542 0 0 1989 14–16 46.7% #49 1,599 0 0
23 1988 1–8 11.1% #208 1,495 0 0 1990 0–4 0.0% #546 1,551 0 0
24 1989 5–7 41.7% #115 1,507 0 1 — — — — — — —
25 1990 3–6 33.3% #165 1,496 0 1 1992 11–18 37.9% #81 1,569 0 0
26 1991 2–2 50.0% #183 1,534 0 1 1993 5–14 26.3% #149 1,520 0 0
27 1992 1–2 33.3% #225 1,535 0 1 1994 4–12 25.0% #182 1,474 0 0
28 — — — — — — — 1995 0–1 0.0% #823 1,458 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 Kaoru Okamoto Jenny Byrne
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 %
13 1978 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
15 1980 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
16 1981 0 2 2 0.0% — — — — — — — — 0 1 1 0.0% 1983 — — — — — — — — 0 2 2 0.0% — — — —
17 — — — — — — — — — — — — — — — — — 1984 — — — — — — — — 1 2 3 33.3% — — — —
18 1983 2 1 3 66.7% — — — — — — — — — — — — 1985 — — — — 1 1 2 50.0% 3 4 7 42.9% 0 1 1 0.0%
19 1984 0 1 1 0.0% — — — — — — — — — — — — 1986 2 5 7 28.6% 3 3 6 50.0% 2 3 5 40.0% 0 1 1 0.0%
20 — — — — — — — — — — — — — — — — — 1987 2 4 6 33.3% 3 6 9 33.3% 1 5 6 16.7% — — — —
21 1986 2 1 3 66.7% — — — — — — — — — — — — 1988 5 8 13 38.5% 2 5 7 28.6% 0 2 2 0.0% 0 1 1 0.0%
22 1987 3 3 6 50.0% 0 1 1 0.0% 3 3 6 50.0% 0 1 1 0.0% 1989 13 11 24 54.2% 0 3 3 0.0% 1 2 3 33.3% — — — —
23 1988 0 4 4 0.0% 0 1 1 0.0% 1 2 3 33.3% 0 1 1 0.0% 1990 — — — — 0 4 4 0.0% — — — — — — — —
24 1989 5 2 7 71.4% 0 1 1 0.0% 0 3 3 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
25 1990 3 2 5 60.0% 0 1 1 0.0% 0 1 1 0.0% 0 2 2 0.0% 1992 5 11 16 31.3% 0 4 4 0.0% 6 3 9 66.7% — — — —
26 1991 2 1 3 66.7% — — — — — — — — 0 1 1 0.0% 1993 3 11 14 21.4% 1 1 2 50.0% 1 2 3 33.3% — — — —
27 1992 — — — — — — — — — — — — 1 2 3 33.3% 1994 3 8 11 27.3% 0 2 2 0.0% 1 2 3 33.3% — — — —
28 — — — — — — — — — — — — — — — — — 1995 0 1 1 0.0% — — — — — — — — — — — —
Career — 17 17 34 50.0% 0 6 6 0.0% 4 9 13 30.8% 1 9 10 10.0% — 33 59 92 35.9% 10 29 39 25.6% 16 27 43 37.2% 0 3 3 0.0%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 Kaoru Okamoto Jenny Byrne
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
13 1978 1484 94.1 — — — — — — — 0.0% -4.50 — — — +0.24 — — — — — — — — — — — — — — — —
15 1980 1466 98.1 — — — — — — — 0.0% -4.00 — — — -0.26 — — — — — — — — — — — — — — — —
16 1981 1441 93.7 — — — — +118 — — 14.3% -3.00 0–1 0–1 — +0.23 1983 1478 95.3 — — — — — — — 0.0% -2.50 — — — +0.04
17 — — — — — — — — — — — — — — — — 1984 1488 102.3 — — — — — — +74 33.3% -1.00 — 0–1 — +0.09
18 1983 1474 101.6 — — — — +92 — — 53.3% 0.00 3–2 (60%) 1–1 — +0.60 1985 1492 109.7 — — — — — — +74 40.7% -0.59 2–3 (40%) 1–2 (33%) 98.2 +0.87
19 1984 1466 100.5 — — — — — — — 33.3% -0.67 0–1 — — -0.03 1986 1527 113.0 — — — — -15 +44 +67 43.2% -0.73 1–5 (17%) 4–1 (80%) 98.5 +0.81
20 1985 1450 92.5 — — — — — — — 0.0% -5.00 — — — +0.04 1987 1496 108.6 — — — — +17 +27 +25 32.7% -1.20 3–4 (43%) 2–0 — +0.25
21 1986 1480 106.1 — — — — +81 — — 57.1% +1.43 1–0 0–2 — +0.49 1988 1503 105.4 — — — — +5 -14 — 31.4% -1.33 3–2 (60%) 2–4 (33%) 101.0 +0.21
22 1987 1543 119.7 — — — — +26 — +59 43.3% -0.07 1–1 0–3 (0%) — +0.51 1989 1599 142.7 — — — — +78 -152 -98 47.1% -0.32 4–6 (40%) 4–3 (57%) 101.5 -0.34
23 1988 1496 101.8 — — — — -12 — +74 20.0% -2.20 0–2 — — -0.11 1990 1552 93.6 — — — — — -167 — 0.0% -3.88 — — — -0.33
24 1989 1508 102.8 — — — — +50 — +5 42.3% -0.73 1–1 0–1 — +1.66 — — — — — — — — — — — — — — — —
25 1990 1496 100.2 — — — — +51 — — 31.6% -1.11 1–0 0–1 — +0.82 1992 1570 121.9 — — — — +29 -216 +69 40.9% -0.74 3–5 (38%) 3–5 (38%) 98.7 +0.44
26 1991 1534 117.3 — — — — +41 — — 50.0% +0.38 — 0–1 — -0.21 1993 1520 102.2 — — — — -19 — +113 32.6% -1.30 1–4 (20%) — — +0.49
27 1992 1536 100.8 — — — — +39 — — 28.6% -2.00 1–0 1–1 — +0.29 1994 1475 108.6 — — — — +17 — +134 32.4% -1.22 1–4 (20%) 2–1 (67%) 98.8 +0.11
28 — — — — — — — — — — — — — — — — 1995 1458 90.1 — — — — — — — 0.0% -5.50 — — — +0.08
51 2016 1516 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1590 107.9 — — — — +47 — +49 36.0% -0.97 8–8 (50%) 2–11 (15%) 94.2 +6.37 — 1725 118.8 — — — — +25 -48 +59 36.8% -1.00 18–33 (35%) 18–17 (51%) 98.5 +1.53

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.