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

Shuai Zhang vs Klara Koukalova H2H: 0-1

Klara Koukalova holds a 1–0 lead over Shuai Zhang in their WTA head-to-head. Across 1 main-draw meeting, Klara Koukalova leads 1–0 on hard courts. Most recently, Klara Koukalova won the 2014 Hobart International round of 16 6-1 6-2.

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Shuai Zhang
China Age 37 Right-Handed 177 cm / 5'10"
H2H
0 – 1
1 main-draw meetings
Klara Koukalova
CZE Age 44 Right-Handed 166 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Klara Koukalova #37 6-1 6-2 Shuai Zhang #51 Match data Jan 10, 2014* R16 Hobart International International → 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
Shuai Zhang #54 #22 1,905 1,857 232 294 44.1% 0 0 0 0 3 3
Klara Koukalova #566 #20 1,860 1,803 275 288 48.8% 0 0 0 0 3 3

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 Shuai Zhang Klara Koukalova
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 2006 0–1 0.0% #203 1,495 0 0 — — — — — — —
18 2007 0–3 0.0% #149 1,464 0 0 — — — — — — —
19 2008 0–6 0.0% #235 1,412 0 0 2001 5–4 55.6% #139 1,519 0 0
20 2009 2–1 66.7% #154 1,467 0 0 2002 4–5 44.4% #117 1,527 0 0
21 2010 3–4 42.9% #90 1,492 0 0 2003 14–19 42.4% #63 1,537 0 0
22 2011 8–22 26.7% #126 1,445 0 0 2004 26–23 53.1% #46 1,611 0 0
23 2012 2–6 25.0% #127 1,457 0 0 2005 32–19 62.7% #35 1,764 0 2
24 2013 9–4 69.2% #52 1,598 0 1 2006 10–22 31.2% #117 1,546 0 2
25 2014 18–24 42.9% #61 1,600 0 1 2007 12–12 50.0% #63 1,578 0 2
26 2015 4–12 25.0% #139 1,518 0 1 2008 21–22 48.8% #72 1,574 0 2
27 2016 26–21 55.3% #23 1,774 0 1 2009 8–17 32.0% #90 1,533 0 2
28 2017 23–24 48.9% #36 1,774 0 2 2010 20–20 50.0% #41 1,656 0 2
29 2018 28–27 50.9% #40 1,726 0 2 2011 29–25 53.7% #41 1,713 0 2
30 2019 18–23 43.9% #40 1,681 0 2 2012 24–22 52.2% #28 1,721 0 2
31 2020 12–10 54.5% #35 1,733 0 2 2013 27–25 51.9% #35 1,675 0 2
32 2021 15–24 38.5% #60 1,631 0 2 2014 29–27 51.8% #40 1,611 0 3
33 2022 34–26 56.7% #25 1,733 0 3 2015 14–22 38.9% #99 1,549 0 3
34 2023 4–18 18.2% #245 1,524 0 3 2016 0–4 0.0% #400 1,486 0 3
35 2024 5–12 29.4% #205 1,574 0 3 — — — — — — —
36 2025 10–7 58.8% #81 1,731 0 3 — — — — — — —
37 2026 11–19 36.7% #54 1,698 0 3 — — — — — — —

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 Shuai Zhang Klara Koukalova
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 %
17 2006 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18 2007 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
19 2008 0 5 5 0.0% 0 1 1 0.0% — — — — — — — — 2001 — — — — 5 3 8 62.5% — — — — 0 1 1 0.0%
20 2009 2 1 3 66.7% — — — — — — — — — — — — 2002 0 2 2 0.0% 4 3 7 57.1% — — — — — — — —
21 2010 3 3 6 50.0% 0 1 1 0.0% — — — — — — — — 2003 3 6 9 33.3% 11 11 22 50.0% 0 1 1 0.0% 0 1 1 0.0%
22 2011 7 17 24 29.2% 1 4 5 20.0% 0 1 1 0.0% — — — — 2004 8 12 20 40.0% 13 9 22 59.1% 5 2 7 71.4% — — — —
23 2012 2 5 7 28.6% 0 1 1 0.0% — — — — — — — — 2005 16 11 27 59.3% 11 6 17 64.7% 5 1 6 83.3% 0 1 1 0.0%
24 2013 8 3 11 72.7% 1 1 2 50.0% — — — — — — — — 2006 4 11 15 26.7% 4 7 11 36.4% 1 3 4 25.0% 1 1 2 50.0%
25 2014 10 15 25 40.0% 4 6 10 40.0% 4 3 7 57.1% — — — — 2007 5 7 12 41.7% 7 5 12 58.3% — — — — — — — —
26 2015 1 6 7 14.3% 3 5 8 37.5% 0 1 1 0.0% — — — — 2008 6 9 15 40.0% 15 10 25 60.0% 0 2 2 0.0% 0 1 1 0.0%
27 2016 24 15 39 61.5% 2 4 6 33.3% 0 2 2 0.0% — — — — 2009 1 7 8 12.5% 7 9 16 43.8% 0 1 1 0.0% — — — —
28 2017 18 14 32 56.3% 3 7 10 30.0% 2 3 5 40.0% — — — — 2010 12 11 23 52.2% 5 8 13 38.5% 3 1 4 75.0% — — — —
29 2018 22 19 41 53.7% 6 6 12 50.0% 0 2 2 0.0% — — — — 2011 16 15 31 51.6% 10 7 17 58.8% 2 2 4 50.0% 1 1 2 50.0%
30 2019 11 15 26 42.3% 1 4 5 20.0% 6 4 10 60.0% — — — — 2012 8 12 20 40.0% 8 6 14 57.1% 5 3 8 62.5% 3 1 4 75.0%
31 2020 7 7 14 50.0% 5 3 8 62.5% — — — — — — — — 2013 17 16 33 51.5% 7 6 13 53.8% 2 2 4 50.0% 1 1 2 50.0%
32 2021 6 13 19 31.6% 4 8 12 33.3% 5 3 8 62.5% — — — — 2014 18 17 35 51.4% 4 6 10 40.0% 6 3 9 66.7% 1 1 2 50.0%
33 2022 22 15 37 59.5% 4 8 12 33.3% 8 3 11 72.7% — — — — 2015 5 14 19 26.3% 6 5 11 54.5% 3 3 6 50.0% — — — —
34 2023 4 10 14 28.6% 0 4 4 0.0% 0 4 4 0.0% — — — — 2016 0 4 4 0.0% — — — — — — — — — — — —
35 2024 5 10 15 33.3% 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
36 2025 9 5 14 64.3% 1 1 2 50.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
37 2026 7 9 16 43.8% 3 7 10 30.0% 1 3 4 25.0% — — — — — — — — — — — — — — — — — — — — —
Career — 168 191 359 46.8% 38 72 110 34.5% 26 31 57 45.6% — — — — — 119 154 273 43.6% 117 101 218 53.7% 32 24 56 57.1% 7 9 16 43.8%

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 495/529 of Shuai Zhang's and 66/96 of Klara Koukalova'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 Shuai Zhang Klara Koukalova
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%
18 2007 1/3 0.0 2.0 55.8% 62.1% 39.1% 42.9% 100.0% 51.9% 22.7% — —/— — — — — — — — — —
19 2008 6/6 0.8 3.2 68.8% 53.0% 45.1% 47.6% 38.3% 50.3% 38.5% — —/— — — — — — — — — —
20 2009 2/3 0.0 4.0 65.6% 47.9% 49.0% 39.4% 37.9% 48.5% 42.7% — —/— — — — — — — — — —
21 2010 6/7 0.2 5.3 72.2% 51.8% 31.0% 48.7% 46.7% 46.1% 42.2% — —/— — — — — — — — — —
22 2011 28/30 0.6 2.5 69.3% 54.9% 39.3% 47.4% 41.5% 50.2% 39.4% — —/— — — — — — — — — —
23 2012 8/8 1.1 3.0 64.8% 56.8% 35.6% 43.8% 44.0% 49.6% 41.2% — —/— — — — — — — — — —
24 2013 11/13 1.5 1.5 64.9% 68.1% 47.0% 62.4% 49.6% 60.4% 48.0% — —/— — — — — — — — — —
25 2014 38/42 1.2 1.9 68.5% 57.4% 45.2% 51.5% 49.8% 53.8% 43.0% — —/— — — — — — — — — —
26 2015 14/16 1.6 2.8 66.9% 60.1% 45.8% 51.2% 59.4% 55.0% 42.9% — —/— — — — — — — — — —
27 2016 38/50 0.9 1.7 66.2% 58.7% 48.2% 49.5% 56.1% 55.2% 45.5% — —/— — — — — — — — — —
28 2017 44/47 2.9 2.7 63.5% 65.5% 43.9% 54.0% 49.5% 57.6% 44.3% — —/— — — — — — — — — —
29 2018 55/55 2.3 2.6 63.7% 63.6% 46.9% 52.4% 47.8% 57.3% 43.7% — —/— — — — — — — — — —
30 2019 41/41 2.1 2.8 62.7% 62.5% 44.0% 51.7% 47.7% 55.7% 41.9% — —/— — — — — — — — — —
31 2020 22/22 2.0 2.5 67.4% 61.9% 48.0% 48.9% 50.6% 57.2% 43.0% — —/— — — — — — — — — —
32 2021 39/39 1.5 2.9 64.7% 59.8% 43.1% 53.0% 43.0% 54.0% 39.9% 2014 31/56 1.8 5.0 55.4% 61.0% 41.7% 47.6% 48.1% 51.9% 43.5%
33 2022 58/60 2.1 2.2 65.7% 64.3% 48.1% 45.8% 47.7% 58.8% 42.2% 2015 31/36 0.7 5.5 55.6% 60.9% 46.7% 43.3% 48.1% 54.4% 42.6%
34 2023 22/22 1.2 2.9 61.1% 57.6% 39.6% 41.4% 52.3% 50.6% 37.3% 2016 4/4 0.3 7.3 56.6% 57.9% 44.2% 56.5% 65.5% 52.2% 36.5%
35 2024 17/17 1.5 2.1 64.9% 61.4% 43.5% 45.0% 40.9% 55.0% 39.3% — —/— — — — — — — — — —
36 2025 15/18 2.6 2.9 67.0% 60.0% 39.9% 39.2% 47.8% 53.4% 45.4% — —/— — — — — — — — — —
37 2026 30/30 1.4 2.1 68.8% 60.1% 47.4% 54.3% 41.8% 56.1% 39.5% — —/— — — — — — — — — —
Career — 495/530 1.7 2.5 65.6% 60.9% 44.8% 49.9% 48.0% 55.3% 42.2% — 66/563 1.2 5.4 55.5% 60.8% 44.2% 46.1% 49.2% 53.1% 42.7%

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 Shuai Zhang Klara Koukalova
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 2006 1495 104.8 — — — — — — — 33.3% -1.67 0–1 — — -0.25 — — — — — — — — — — — — — — — —
18 2007 1464 103.0 -1.60 +0.26 0.473 38.5% +16 — — 0.0% -2.67 — 0–1 — -0.21 — — — — — — — — — — — — — — — —
19 2008 1413 101.8 -1.83 -2.28 0.775 44.3% +21 — — 14.3% -2.21 0–2 0–2 — -0.06 2001 1520 104.0 — — — — — +55 — 47.8% +0.26 4–1 (80%) 0–1 — +1.03
20 2009 1468 120.7 +2.65 +2.50 0.830 45.6% +21 — — 66.7% +0.33 — 1–0 — -0.05 2002 1527 105.4 — — — — — +71 — 50.0% -0.42 2–4 (33%) 1–0 — +0.68
21 2010 1492 103.6 -3.51 -1.21 0.783 44.3% +26 — — 37.5% -1.19 2–0 1–1 — +0.51 2003 1537 119.8 — — — — -60 +108 — 44.4% -0.35 7–8 (47%) 1–3 (25%) 99.1 +0.56
22 2011 1445 108.6 -4.27 -3.16 0.790 44.9% +24 +34 — 30.8% -1.57 3–4 (43%) 1–6 (14%) 96.1 -0.05 2004 1612 117.6 — — — — -110 +85 +30 49.5% -0.07 8–7 (53%) 6–4 (60%) 103.5 +0.67
23 2012 1457 113.5 -2.34 +0.08 0.817 45.5% +14 — — 23.5% -1.71 1–0 0–1 — -0.17 2005 1764 126.4 — — — — -90 +7 -18 55.5% +0.09 15–4 (79%) 9–2 (82%) 118.0 +1.13
24 2013 1599 123.5 +2.33 +1.26 1.212 54.5% -6 — — 70.4% +1.52 0–1 2–0 — +0.48 2006 1547 107.1 — — — — +14 +77 +135 37.0% -1.05 2–7 (22%) 3–3 (50%) 92.0 +0.20
25 2014 1600 117.2 -1.75 -0.53 0.931 48.5% -53 -65 +35 42.9% -0.46 10–6 (63%) 4–4 (50%) 105.2 +0.61 2007 1579 115.5 — — — — -13 +59 — 50.0% +0.06 3–5 (38%) 3–4 (43%) 98.3 +0.21
26 2015 1518 110.7 -2.05 -0.11 0.952 48.8% -20 -5 — 33.3% -0.83 0–4 (0%) 0–3 (0%) 92.0 -0.54 2008 1574 111.3 — — — — -45 +84 — 48.5% -0.08 10–9 (53%) 3–5 (38%) 100.5 +0.48
27 2016 1775 138.9 -0.62 +2.34 1.016 50.3% +20 -282 — 52.6% +0.18 8–1 (89%) 5–6 (45%) 106.8 -0.50 2009 1534 110.3 — — — — -72 +97 — 35.0% -0.95 5–5 (50%) 4–5 (44%) 100.5 -0.40
28 2017 1775 137.4 +0.89 +0.70 1.045 51.0% +50 -290 -233 50.9% +0.34 8–10 (44%) 7–8 (47%) 99.0 +0.05 2010 1657 126.4 — — — — -49 -66 +4 46.2% -0.20 10–5 (67%) 5–6 (45%) 106.2 +0.89
29 2018 1727 132.0 +0.70 +0.72 1.025 50.7% +26 -168 — 52.4% +0.02 5–9 (36%) 9–8 (53%) 96.6 +2.55 2011 1713 131.7 — — — — -15 -60 -54 50.4% -0.03 13–6 (68%) 7–4 (64%) 109.2 +0.80
30 2019 1682 131.5 -0.59 -1.30 0.946 49.1% -17 -99 -24 47.7% -0.17 4–6 (40%) 5–1 (83%) 102.8 +0.27 2012 1721 128.0 — — — — -45 -9 -3 51.0% +0.17 10–6 (63%) 5–7 (42%) 103.3 -0.68
31 2020 1733 131.8 0.00 +0.35 1.003 50.0% -62 -39 — 52.0% -0.06 4–2 (67%) 5–3 (63%) 104.9 -0.07 2013 1676 139.6 — — — — -9 +65 +31 51.7% +0.15 9–9 (50%) 6–9 (40%) 95.7 -1.87
32 2021 1632 116.8 -1.99 -2.77 0.869 47.1% -13 -16 +97 43.2% -0.80 2–5 (29%) 5–3 (63%) 97.9 +0.69 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
33 2022 1733 139.5 +1.53 -0.47 1.023 50.4% -6 -140 +117 53.4% +0.09 6–2 (75%) 11–8 (58%) 106.7 +1.01 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 2023 1524 112.2 -4.74 -4.13 0.755 43.8% +90 -25 +193 28.3% -1.61 1–5 (17%) 1–2 (33%) 94.2 +0.93 2016 1486 101.6 -2.24 -1.27 0.765 45.0% -28 — — 27.3% -1.55 0–3 (0%) 0–1 — +0.16
35 2024 1575 131.2 -0.87 -2.36 0.873 47.3% +48 — — 35.1% -1.08 0–3 (0%) 2–1 (67%) 97.8 -0.76 — — — — — — — — — — — — — — — —
36 2025 1731 134.6 -2.26 +1.21 0.975 49.2% +29 — — 50.0% -0.25 6–0 (100%) 1–2 (33%) 108.2 -1.06 — — — — — — — — — — — — — — — —
37 2026 1698 130.8 -0.77 -1.93 0.899 47.7% +2 -169 +62 39.7% -0.74 3–5 (38%) 4–1 (80%) 100.8 -0.17 — — — — — — — — — — — — — — — —
Career — 1858 134.2 -0.75 -0.61 0.945 48.8% +10 -114 +39 45.4% -0.37 63–66 (49%) 64–61 (51%) 103.1 +0.61 — 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

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.