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

Marianne Werdel Witmeyer vs Naoko Sawamatsu H2H: 1-1

Marianne Werdel Witmeyer and Naoko Sawamatsu are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, they are tied 1–1 on hard courts. Most recently, Marianne Werdel Witmeyer won the 1991 Schenectady quarterfinal 6-3 6-2.

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Marianne Werdel Witmeyer
USA
H2H
1 – 1
2 main-draw meetings
Naoko Sawamatsu
JPN Age 53 Right-Handed 167 cm / 5'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Marianne Werdel Witmeyer 6-3 6-2 Naoko Sawamatsu #38 Match data Aug 24, 1991* QF Schenectady Tier V → modern equivalent WTA 250 Hard
Naoko Sawamatsu #37 6-1 6-3 Marianne Werdel Witmeyer Match data Apr 20, 1991* SF Pattaya Tier V → modern equivalent WTA 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
Marianne Werdel Witmeyer — — — 1,850 181 203 47.1% 0 0 0 0 1 1
Naoko Sawamatsu #266 #14 881 1,970 183 129 58.7% 0 0 0 0 4 4

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.

Marianne Werdel Witmeyer Naoko Sawamatsu
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1983 0–1 0.0% — 1,492 0 0 1989 0–2 0.0% #262 1,477 0 0
1984 0–1 0.0% — 1,477 0 0 1990 14–6 70.0% #31 1,669 0 1
1985 6–3 66.7% — 1,541 0 1 1991 21–16 56.8% #33 1,723 0 1
1986 13–10 56.5% — 1,683 0 1 1992 23–13 63.9% #24 1,856 0 1
1987 10–17 37.0% — 1,659 0 1 1993 24–13 64.9% #28 1,853 0 2
1988 11–20 35.5% — 1,586 0 1 1994 24–12 66.7% #26 1,870 0 3
1989 13–17 43.3% — 1,592 0 1 1995 22–13 62.9% #17 1,847 0 3
1990 18–18 50.0% — 1,745 0 1 1996 19–17 52.8% #38 1,811 0 3
1991 21–19 52.5% — 1,739 0 1 1997 24–19 55.8% #34 1,849 0 4
1992 13–17 43.3% — 1,697 0 1 1998 12–18 40.0% #55 1,721 0 4
1993 21–18 53.8% — 1,748 0 1 — — — — — — —
1994 22–22 50.0% — 1,773 0 1 — — — — — — —
1995 20–18 52.6% — 1,787 0 1 — — — — — — —
1996 8–18 30.8% — 1,665 0 1 — — — — — — —
1997 5–4 55.6% — 1,673 0 1 — — — — — — —

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.

Marianne Werdel Witmeyer Naoko Sawamatsu
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 %
1983 — — — — 0 1 1 0.0% — — — — — — — — 1989 0 1 1 0.0% — — — — — — — — 0 1 1 0.0%
1984 — — — — — — — — — — — — 0 1 1 0.0% 1990 13 3 16 81.3% 1 1 2 50.0% 0 2 2 0.0% — — — —
1985 1 2 3 33.3% — — — — — — — — — — — — 1991 13 10 23 56.5% 7 3 10 70.0% 1 2 3 33.3% 0 1 1 0.0%
1986 10 8 18 55.6% — — — — — — — — 3 2 5 60.0% 1992 13 7 20 65.0% 5 4 9 55.6% 3 1 4 75.0% 2 1 3 66.7%
1987 2 6 8 25.0% 0 2 2 0.0% 2 4 6 33.3% 6 5 11 54.5% 1993 12 8 20 60.0% 7 2 9 77.8% 4 2 6 66.7% 1 1 2 50.0%
1988 9 16 25 36.0% — — — — 1 3 4 25.0% 1 1 2 50.0% 1994 15 7 22 68.2% 5 3 8 62.5% 4 2 6 66.7% — — — —
1989 11 14 25 44.0% 1 1 2 50.0% — — — — 1 2 3 33.3% 1995 14 8 22 63.6% 4 3 7 57.1% 2 1 3 66.7% 2 1 3 66.7%
1990 14 12 26 53.8% 1 2 3 33.3% 0 1 1 0.0% 3 3 6 50.0% 1996 11 11 22 50.0% 4 3 7 57.1% 2 2 4 50.0% 2 1 3 66.7%
1991 16 11 27 59.3% 1 2 3 33.3% 2 2 4 50.0% 2 4 6 33.3% 1997 20 12 32 62.5% 0 3 3 0.0% 2 2 4 50.0% 2 2 4 50.0%
1992 11 12 23 47.8% 0 2 2 0.0% 1 2 3 33.3% 1 1 2 50.0% 1998 6 10 16 37.5% 3 5 8 37.5% 2 2 4 50.0% 1 1 2 50.0%
1993 14 10 24 58.3% 1 2 3 33.3% 2 2 4 50.0% 4 4 8 50.0% — — — — — — — — — — — — — — — — —
1994 15 13 28 53.6% 1 2 3 33.3% 2 2 4 50.0% 4 5 9 44.4% — — — — — — — — — — — — — — — — —
1995 14 11 25 56.0% 1 3 4 25.0% 1 2 3 33.3% 4 2 6 66.7% — — — — — — — — — — — — — — — — —
1996 3 10 13 23.1% 1 3 4 25.0% 0 2 2 0.0% 4 3 7 57.1% — — — — — — — — — — — — — — — — —
1997 5 4 9 55.6% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 125 129 254 49.2% 7 20 27 25.9% 11 20 31 35.5% 33 33 66 50.0% Career 117 77 194 60.3% 36 27 63 57.1% 20 16 36 55.6% 10 9 19 52.6%

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.

Marianne Werdel Witmeyer Naoko Sawamatsu
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
1983 1492 100.4 — — — — — — — 0.0% -2.50 — 0–1 — -0.02 1989 1477 96.0 — — — — — — — 20.0% -2.20 0–1 — — +0.30
1984 1478 96.1 — — — — — — — 0.0% -4.00 — — — +0.29 1990 1669 124.7 — — — — +57 — — 62.5% +0.77 6–2 (75%) 5–1 (83%) 110.2 +1.75
1985 1542 112.3 — — — — +15 — — 63.2% +0.89 1–0 0–1 — +0.37 1991 1724 133.2 — — — — -8 -44 -170 55.4% +0.49 5–6 (45%) 1–1 — +2.14
1986 1683 123.1 — — — — +21 — — 50.0% -0.34 8–2 (80%) 5–1 (83%) — +1.30 1992 1857 143.8 — — — — -17 -155 -248 60.7% +0.42 7–5 (58%) 4–2 (67%) 104.0 -0.25
1987 1659 129.2 — — — — +44 — -85 41.9% -0.77 2–6 (25%) 3–0 (100%) — -0.83 1993 1853 139.0 — — — — -68 -33 -152 62.1% +0.86 7–6 (54%) 2–0 — +0.17
1988 1587 119.6 — — — — +2 — -37 37.3% -1.03 2–3 (40%) 3–2 (60%) 100.4 -1.05 1994 1871 146.2 — — — — -20 -58 -130 60.7% +1.00 9–3 (75%) 4–3 (57%) 106.5 -0.99
1989 1592 119.9 — — — — -6 — — 44.1% -0.25 4–4 (50%) 3–4 (43%) 99.6 +2.41 1995 1848 150.6 — — — — +59 -74 -92 58.6% +0.48 10–7 (59%) 6–3 (67%) 103.1 +1.09
1990 1746 136.3 — — — — +8 -257 — 51.7% +0.10 7–10 (41%) 6–4 (60%) 103.1 -0.70 1996 1812 145.0 — — — — +5 +4 -6 53.2% +0.02 5–6 (45%) 3–2 (60%) 97.8 -0.27
1991 1740 132.5 — — — — +15 -243 -169 48.9% -0.13 10–4 (71%) 5–4 (56%) 103.3 +0.98 1997 1850 153.6 — — — — +44 -92 -62 54.0% +0.35 10–6 (63%) 5–5 (50%) 103.9 -1.59
1992 1697 133.3 — — — — +32 — -146 48.5% 0.00 3–7 (30%) 4–1 (80%) 98.1 +0.32 1998 1721 125.2 — — — — +37 -25 +64 40.5% -0.62 8–6 (57%) 1–1 — -0.88
1993 1749 139.9 — — — — +28 -270 -150 51.6% +0.31 8–5 (62%) 2–2 (50%) 101.6 -0.37 — — — — — — — — — — — — — — — —
1994 1773 143.7 — — — — +15 -260 -181 48.5% -0.08 9–6 (60%) 3–2 (60%) — -0.29 — — — — — — — — — — — — — — — —
1995 1788 149.0 — — — — +45 -292 — 54.1% +0.31 5–6 (45%) 3–2 (60%) 101.2 +0.06 — — — — — — — — — — — — — — — —
1996 1666 124.9 — — — — +54 -192 — 31.6% -1.28 3–2 (60%) 2–0 — +0.43 — — — — — — — — — — — — — — — —
1997 1673 119.1 — — — — +35 — — 52.6% +0.37 1–2 (33%) 0–1 — -0.07 — — — — — — — — — — — — — — — —
Career 1850 139.7 — — — — +22 -251 -124 47.3% -0.20 63–57 (53%) 39–25 (61%) 108.6 +0.74 Career 1971 148.7 — — — — +11 -58 -103 56.1% +0.40 67–48 (58%) 31–18 (63%) 109.3 +0.47

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.