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

Klara Koukalova vs Mashona Washington H2H: 0-1

Mashona Washington holds a 1–0 lead over Klara Koukalova in their WTA head-to-head. Across 1 main-draw meeting, Mashona Washington leads 1–0 on hard courts. Most recently, Mashona Washington won the 2004 Japan Women's Open semifinal 3-6 7-5 6-2.

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Klara Koukalova
CZE Age 44 Right-Handed 166 cm / 5'5"
H2H
0 – 1
1 main-draw meetings
Mashona Washington
USA Age 50 Right-Handed 168 cm / 5'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mashona Washington #61 3-6 7-5 6-2 Klara Koukalova #50 Match data Oct 9, 2004* SF Japan Women's Open Tier III → 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
Klara Koukalova #566 #20 1,860 1,803 275 288 48.8% 0 0 0 0 3 3
Mashona Washington #990 #50 676 1,645 42 76 35.6% 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 Klara Koukalova Mashona Washington
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 1994 0–1 0.0% #407 1,499 0 0
19 2001 5–4 55.6% #139 1,519 0 0 — — — — — — —
20 2002 4–5 44.4% #117 1,527 0 0 — — — — — — —
21 2003 14–19 42.4% #63 1,537 0 0 — — — — — — —
22 2004 26–23 53.1% #46 1,611 0 0 1998 1–3 25.0% #165 1,493 0 0
23 2005 32–19 62.7% #35 1,764 0 2 1999 4–5 44.4% #130 1,506 0 0
24 2006 10–22 31.2% #117 1,546 0 2 2000 3–9 25.0% #142 1,481 0 0
25 2007 12–12 50.0% #63 1,578 0 2 2001 1–2 33.3% #134 1,489 0 0
26 2008 21–22 48.8% #72 1,574 0 2 2002 1–5 16.7% #109 1,470 0 0
27 2009 8–17 32.0% #90 1,533 0 2 2003 1–5 16.7% #199 1,441 0 0
28 2010 20–20 50.0% #41 1,656 0 2 2004 13–12 52.0% #53 1,581 0 0
29 2011 29–25 53.7% #41 1,713 0 2 2005 13–22 37.1% #73 1,586 0 0
30 2012 24–22 52.2% #28 1,721 0 2 2006 5–10 33.3% #230 1,578 0 0
31 2013 27–25 51.9% #35 1,675 0 2 — — — — — — —
32 2014 29–27 51.8% #40 1,611 0 3 2008 0–1 0.0% #309 1,562 0 0
33 2015 14–22 38.9% #99 1,549 0 3 — — — — — — —
34 2016 0–4 0.0% #400 1,486 0 3 2010 0–1 0.0% #364 1,538 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 Klara Koukalova Mashona Washington
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 %
18 — — — — — — — — — — — — — — — — — 1994 0 1 1 0.0% — — — — — — — — — — — —
19 2001 — — — — 5 3 8 62.5% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
20 2002 0 2 2 0.0% 4 3 7 57.1% — — — — — — — — — — — — — — — — — — — — — — — — —
21 2003 3 6 9 33.3% 11 11 22 50.0% 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
22 2004 8 12 20 40.0% 13 9 22 59.1% 5 2 7 71.4% — — — — 1998 0 2 2 0.0% — — — — — — — — 1 1 2 50.0%
23 2005 16 11 27 59.3% 11 6 17 64.7% 5 1 6 83.3% 0 1 1 0.0% 1999 4 5 9 44.4% — — — — — — — — — — — —
24 2006 4 11 15 26.7% 4 7 11 36.4% 1 3 4 25.0% 1 1 2 50.0% 2000 2 5 7 28.6% 0 1 1 0.0% 0 1 1 0.0% 1 2 3 33.3%
25 2007 5 7 12 41.7% 7 5 12 58.3% — — — — — — — — 2001 1 2 3 33.3% — — — — — — — — — — — —
26 2008 6 9 15 40.0% 15 10 25 60.0% 0 2 2 0.0% 0 1 1 0.0% 2002 1 3 4 25.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
27 2009 1 7 8 12.5% 7 9 16 43.8% 0 1 1 0.0% — — — — 2003 1 4 5 20.0% — — — — — — — — 0 1 1 0.0%
28 2010 12 11 23 52.2% 5 8 13 38.5% 3 1 4 75.0% — — — — 2004 11 10 21 52.4% 1 1 2 50.0% 1 1 2 50.0% — — — —
29 2011 16 15 31 51.6% 10 7 17 58.8% 2 2 4 50.0% 1 1 2 50.0% 2005 5 14 19 26.3% 2 5 7 28.6% 6 3 9 66.7% — — — —
30 2012 8 12 20 40.0% 8 6 14 57.1% 5 3 8 62.5% 3 1 4 75.0% 2006 3 5 8 37.5% 1 3 4 25.0% 1 2 3 33.3% — — — —
31 2013 17 16 33 51.5% 7 6 13 53.8% 2 2 4 50.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
32 2014 18 17 35 51.4% 4 6 10 40.0% 6 3 9 66.7% 1 1 2 50.0% 2008 0 1 1 0.0% — — — — — — — — — — — —
33 2015 5 14 19 26.3% 6 5 11 54.5% 3 3 6 50.0% — — — — — — — — — — — — — — — — — — — — —
34 2016 0 4 4 0.0% — — — — — — — — — — — — 2010 — — — — 0 1 1 0.0% — — — — — — — —
Career — 119 154 273 43.6% 117 101 218 53.7% 32 24 56 57.1% 7 9 16 43.8% — 28 52 80 35.0% 4 12 16 25.0% 8 8 16 50.0% 2 4 6 33.3%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 66/96 of Klara Koukalova's and 22/77 of Mashona Washington's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.

Age Klara Koukalova Mashona Washington
Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts% Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts%
28 — —/— — — — — — — — — — 2004 1/25 4.0 4.0 55.1% 68.4% 29.0% 40.0% 30.8% 50.7% 44.2%
29 — —/— — — — — — — — — — 2005 9/35 3.2 4.0 67.6% 61.3% 43.0% 56.0% 38.2% 55.4% 42.4%
30 — —/— — — — — — — — — — 2006 10/15 2.5 4.5 64.9% 60.7% 46.9% 46.0% 36.0% 55.6% 38.9%
32 2014 31/56 1.8 5.0 55.4% 61.0% 41.7% 47.6% 48.1% 51.9% 43.5% 2008 1/1 1.0 5.0 64.5% 55.0% 36.4% 50.0% 40.0% 48.4% 35.7%
33 2015 31/36 0.7 5.5 55.6% 60.9% 46.7% 43.3% 48.1% 54.4% 42.6% — —/— — — — — — — — — —
34 2016 4/4 0.3 7.3 56.6% 57.9% 44.2% 56.5% 65.5% 52.2% 36.5% 2010 1/1 2.0 1.0 68.9% 57.7% 53.1% 54.5% 60.0% 56.3% 39.8%
Career — 66/563 1.2 5.4 55.5% 60.8% 44.2% 46.1% 49.2% 53.1% 42.7% — 22/118 2.8 4.1 65.7% 60.9% 44.3% 50.4% 37.9% 55.0% 40.4%

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 Klara Koukalova Mashona Washington
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
18 — — — — — — — — — — — — — — — — 1994 1500 110.4 — — — — — — — 0.0% -5.00 — — — -0.19
19 2001 1520 104.0 — — — — — +55 — 47.8% +0.26 4–1 (80%) 0–1 — +1.03 — — — — — — — — — — — — — — — —
20 2002 1527 105.4 — — — — — +71 — 50.0% -0.42 2–4 (33%) 1–0 — +0.68 — — — — — — — — — — — — — — — —
21 2003 1537 119.8 — — — — -60 +108 — 44.4% -0.35 7–8 (47%) 1–3 (25%) 99.1 +0.56 — — — — — — — — — — — — — — — —
22 2004 1612 117.6 — — — — -110 +85 +30 49.5% -0.07 8–7 (53%) 6–4 (60%) 103.5 +0.67 1998 1494 104.5 — — — — +27 — — 33.3% -1.11 0–1 1–1 — +0.08
23 2005 1764 126.4 — — — — -90 +7 -18 55.5% +0.09 15–4 (79%) 9–2 (82%) 118.0 +1.13 1999 1506 104.0 — — — — +24 — — 47.4% -0.53 0–1 1–1 — +0.76
24 2006 1547 107.1 — — — — +14 +77 +135 37.0% -1.05 2–7 (22%) 3–3 (50%) 92.0 +0.20 2000 1481 104.4 — — — — +34 — — 26.9% -2.00 1–1 3–0 (100%) — +0.23
25 2007 1579 115.5 — — — — -13 +59 — 50.0% +0.06 3–5 (38%) 3–4 (43%) 98.3 +0.21 2001 1489 110.4 — — — — +28 — — 42.9% -0.86 0–1 — — -0.08
26 2008 1574 111.3 — — — — -45 +84 — 48.5% -0.08 10–9 (53%) 3–5 (38%) 100.5 +0.48 2002 1470 104.3 — — — — +40 — — 23.1% -1.85 0–1 1–1 — -0.30
27 2009 1534 110.3 — — — — -72 +97 — 35.0% -0.95 5–5 (50%) 4–5 (44%) 100.5 -0.40 2003 1441 96.8 — — — — +23 — — 26.7% -1.80 1–2 (33%) 1–1 — +0.24
28 2010 1657 126.4 — — — — -49 -66 +4 46.2% -0.20 10–5 (67%) 5–6 (45%) 106.2 +0.89 2004 1581 124.4 -0.46 +0.14 0.897 47.0% -15 — — 51.8% +0.25 3–3 (50%) 1–0 — +0.41
29 2011 1713 131.7 — — — — -15 -60 -54 50.4% -0.03 13–6 (68%) 7–4 (64%) 109.2 +0.80 2005 1586 116.5 +0.23 -0.86 0.949 48.9% -73 -83 +76 37.8% -0.89 7–5 (58%) 6–4 (60%) 107.0 -0.35
30 2012 1721 128.0 — — — — -45 -9 -3 51.0% +0.17 10–6 (63%) 5–7 (42%) 103.3 -0.68 2006 1579 111.3 +0.23 -2.15 0.876 47.1% -56 -69 +67 38.9% -1.14 2–4 (33%) 1–1 — -1.40
31 2013 1676 139.6 — — — — -9 +65 +31 51.7% +0.15 9–9 (50%) 6–9 (40%) 95.7 -1.87 — — — — — — — — — — — — — — — —
32 2014 1612 127.9 -2.87 -0.03 0.906 47.8% +13 +61 +151 50.8% -0.13 10–8 (56%) 11–4 (73%) 104.3 -0.55 2008 1563 98.4 -1.32 -4.37 0.692 42.4% — — — 0.0% -3.00 — — — +0.01
33 2015 1549 110.8 -2.79 +1.36 0.935 48.1% -28 +101 +170 40.5% -0.84 2–6 (25%) 3–4 (43%) 95.0 -0.51 — — — — — — — — — — — — — — — —
34 2016 1486 101.6 -2.24 -1.27 0.765 45.0% -28 — — 27.3% -1.55 0–3 (0%) 0–1 — +0.16 2010 1539 98.5 -1.16 -3.20 0.911 48.5% — — — 33.3% -1.00 0–1 — — +0.25
Career — 1804 125.9 -2.79 +0.55 0.910 47.8% -34 +51 +56 47.9% -0.19 110–93 (54%) 67–62 (52%) 106.6 +0.50 — 1646 117.0 +0.07 -1.67 0.899 47.7% -13 -78 +74 38.5% -0.92 14–20 (41%) 15–9 (63%) 104.1 -0.29

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.