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

Kazuko Sawamatsu vs Sonja Pachta H2H: 1-0

Kazuko Sawamatsu holds a 1–0 lead over Sonja Pachta in their WTA head-to-head. Across 1 main-draw meeting, Kazuko Sawamatsu leads 1–0 on grass. Most recently, Kazuko Sawamatsu won the 1973 Wimbledon round of 128 6-2 6-2.

JPN Age 75 Right-Handed
H2H
1 0
1 main-draw meetings

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kazuko Sawamatsu 6-2 6-2 Sonja Pachta Match data Jun 27, 1973* R128 Wimbledon Grand Slam 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
Kazuko Sawamatsu 1,954 179 100 64.2% 0 0 0 1 8 9
Sonja Pachta 1,592 17 20 45.9% 0 0 0 0 2 2

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 Kazuko Sawamatsu Sonja Pachta
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1968 9–7 56.2% 1,556 0 0
18 1969 16–8 66.7% 1,674 0 1
19 1970 10–8 55.6% 1,727 0 2
20 1971 18–10 64.3% 1,826 0 3
21 1972 28–16 63.6% 1,848 0 6
22 1973 38–21 64.4% 1,825 0 6
23 1974 37–20 64.9% 1,900 0 8
24 1975 23–10 69.7% 1,954 0 9
27 1968 1–1 50.0% 1,495 0 0
28 1969 2–3 40.0% 1,483 0 0
29 1970 3–1 75.0% 1,539 0 1
30 1971 0–1 0.0% 1,521 0 1
31 1972 11–8 57.9% 1,592 0 2
32 1973 0–3 0.0% 1,553 0 2
34 1975 0–2 0.0% 1,519 0 2
35 1976 0–1 0.0% 1,509 0 2

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 Kazuko Sawamatsu Sonja Pachta
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
17 1968 1556 119.1 +59 56.3% +0.87 2–0 +0.07
18 1969 1674 127.4 +49 -122 64.7% +1.25 2–1 (67%) +0.72
19 1970 1727 133.7 -29 -107 59.1% +0.75 2–6 (25%) -1.68
20 1971 1827 139.8 -118 0 59.3% +0.81 6–1 (86%) 1–0 -2.27
21 1972 1848 149.8 -200 -59 +3 61.1% +1.22 5–4 (56%) -3.87
22 1973 1826 145.5 -160 +61 +45 60.9% +0.99 10–5 (67%) 3–4 (43%) 104.0 +1.60
23 1974 1900 150.9 -79 -49 +35 61.7% +0.94 8–2 (80%) 4–3 (57%) 106.4 -3.51
24 1975 1955 150.1 +26 -50 64.9% +1.09 6–2 (75%) 3–1 (75%) 106.5 -0.94
27 1968 1496 99.8 50.0% +0.50 +0.25
28 1969 1483 97.5 -15 30.0% -1.80 1–1 +0.02
29 1970 1540 108.5 +12 85.7% +2.43 1–0 +0.58
30 1971 1521 97.9 33.3% -2.00 0–1 +0.28
31 1972 1593 114.9 -2 -13 51.3% -0.05 5–2 (71%) 1–0 +1.59
32 1973 1553 94.5 0.0% -3.67 +0.13
34 1975 1520 91.8 0.0% -3.75 +0.46
35 1976 1509 90.1 0.0% -6.00 0.00
Career 1955 150.4 -131 +6 +3 61.3% +1.01 41–21 (66%) 11–8 (58%) 110.7 -3.61 1593 103.1 -2 -9 42.7% -0.75 7–4 (64%) 1–0 +10.34

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.