H2H data updated: 2026-09-12 00:00 UTC

Kazuko Sawamatsu vs Joy Schwikert H2H: 1-0

Kazuko Sawamatsu holds a 1–0 lead over Joy Schwikert in their WTA head-to-head. Across 1 main-draw meeting, Kazuko Sawamatsu leads 1–0 on clay. Most recently, Kazuko Sawamatsu won the 1974 Tokyo Japan Open round of 16 6-3 6-0.

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Kazuko Sawamatsu
JPN Age 75 Right-Handed
H2H
1 – 0
1 main-draw meetings
Joy Schwikert
USA

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kazuko Sawamatsu 6-3 6-0 Joy Schwikert Match data Oct 11, 1974* R16 Tokyo Japan Open WTA 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
Kazuko Sawamatsu — — — 1,954 179 100 64.2% 0 0 0 1 8 9
Joy Schwikert — — — 1,570 19 38 33.3% 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.

Kazuko Sawamatsu Joy Schwikert
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1968 9–7 56.2% — 1,556 0 0 1971 1–1 50.0% — 1,492 0 0
1969 16–8 66.7% — 1,674 0 1 1972 0–1 0.0% — 1,489 0 0
1970 10–8 55.6% — 1,727 0 2 1973 5–13 27.8% — 1,514 0 0
1971 18–10 64.3% — 1,826 0 3 1974 8–13 38.1% — 1,487 0 0
1972 28–16 63.6% — 1,848 0 6 1975 5–10 33.3% — 1,477 0 0
1973 38–21 64.4% — 1,825 0 6 — — — — — — —
1974 37–20 64.9% — 1,900 0 8 — — — — — — —
1975 23–10 69.7% — 1,954 0 9 — — — — — — —

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Kazuko Sawamatsu Joy Schwikert
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 %
1968 — — — — 9 5 14 64.3% 0 2 2 0.0% — — — — 1971 1 1 2 50.0% — — — — — — — — — — — —
1969 — — — — 13 6 19 68.4% 3 2 5 60.0% — — — — 1972 0 1 1 0.0% — — — — — — — — — — — —
1970 — — — — 3 4 7 42.9% 4 4 8 50.0% — — — — 1973 1 5 6 16.7% 2 5 7 28.6% — — — — 2 3 5 40.0%
1971 — — — — 4 4 8 50.0% 14 6 20 70.0% — — — — 1974 4 2 6 66.7% 2 4 6 33.3% 0 4 4 0.0% 1 2 3 33.3%
1972 1 1 2 50.0% 11 7 18 61.1% 13 8 21 61.9% 3 0 3 100.0% 1975 — — — — 1 2 3 33.3% — — — — 3 1 4 75.0%
1973 3 1 4 75.0% 18 8 26 69.2% 16 9 25 64.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — —
1974 6 1 7 85.7% 11 9 20 55.0% 17 9 26 65.4% 3 1 4 75.0% — — — — — — — — — — — — — — — — —
1975 — — — — 19 7 26 73.1% 4 3 7 57.1% — — — — — — — — — — — — — — — — — — — — —
Career 10 3 13 76.9% 88 50 138 63.8% 71 43 114 62.3% 7 4 11 63.6% Career 6 9 15 40.0% 5 11 16 31.2% 0 4 4 0.0% 6 6 12 50.0%

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Kazuko Sawamatsu Joy Schwikert
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
1968 1556 119.1 — — — — — +59 — 56.3% +0.87 2–0 — — +0.07 1971 1492 98.8 — — — — — — — 33.3% -2.33 0–1 — — -0.02
1969 1674 127.4 — — — — — +49 -122 64.7% +1.25 2–1 (67%) — — +0.72 1972 1490 98.0 — — — — — — — 0.0% -4.00 — — — -0.21
1970 1727 133.7 — — — — — -29 -107 59.1% +0.75 2–6 (25%) — — -1.68 1973 1515 118.3 — — — — -12 +9 — 27.0% -2.00 1–2 (33%) 1–1 — -0.97
1971 1827 139.8 — — — — — -118 0 59.3% +0.81 6–1 (86%) 1–0 — -2.27 1974 1487 105.6 — — — — +53 +24 -15 40.8% -0.51 3–4 (43%) 0–2 — +1.91
1972 1848 149.8 — — — — -200 -59 +3 61.1% +1.22 5–4 (56%) — — -3.87 1975 1478 110.3 — — — — +172 +34 — 34.4% -0.91 1–1 2–1 (67%) — +1.09
1973 1826 145.5 — — — — -160 +61 +45 60.9% +0.99 10–5 (67%) 3–4 (43%) 104.0 +1.60 — — — — — — — — — — — — — — — —
1974 1900 150.9 — — — — -79 -49 +35 61.7% +0.94 8–2 (80%) 4–3 (57%) 106.4 -3.51 — — — — — — — — — — — — — — — —
1975 1955 150.1 — — — — — +26 -50 64.9% +1.09 6–2 (75%) 3–1 (75%) 106.5 -0.94 — — — — — — — — — — — — — — — —
Career 1955 150.4 — — — — -131 +6 +3 61.3% +1.01 41–21 (66%) 11–8 (58%) 110.7 -3.61 Career 1570 111.9 — — — — +43 +19 -15 34.1% -1.16 5–8 (38%) 3–4 (43%) 97.4 +3.27

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.