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

Stefanie Voegele vs Klara Koukalova H2H: 1-0

Stefanie Voegele holds a 1–0 lead over Klara Koukalova in their WTA head-to-head. Across 1 main-draw meeting, Stefanie Voegele leads 1–0 on hard courts. Most recently, Stefanie Voegele won the 2013 Linz Open round of 32 5-7 7-5 6-0.

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Stefanie Voegele
Switzerland Age 36 Right-Handed 170 cm / 5'7"
H2H
1 – 0
1 main-draw meetings
Klara Koukalova
CZE Age 44 Right-Handed 166 cm / 5'5"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Stefanie Voegele #58 5-7 7-5 6-0 Klara Koukalova #33 Match data Oct 10, 2013* R32 Linz Open 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
Stefanie Voegele #1,075 #42 1,255 1,700 100 173 36.6% 0 0 0 0 0 0
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 Stefanie Voegele Klara Koukalova
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 2008 0–2 0.0% #124 1,486 0 0 — — — — — — —
19 2009 10–9 52.6% #75 1,559 0 0 2001 5–4 55.6% #139 1,519 0 0
20 2010 9–22 29.0% #135 1,504 0 0 2002 4–5 44.4% #117 1,527 0 0
21 2011 1–1 50.0% #138 1,518 0 0 2003 14–19 42.4% #63 1,537 0 0
22 2012 2–7 22.2% #92 1,498 0 0 2004 26–23 53.1% #46 1,611 0 0
23 2013 21–20 51.2% #50 1,664 0 0 2005 32–19 62.7% #35 1,764 0 2
24 2014 14–23 37.8% #79 1,544 0 0 2006 10–22 31.2% #117 1,546 0 2
25 2015 7–17 29.2% #119 1,510 0 0 2007 12–12 50.0% #63 1,578 0 2
26 2016 10–14 41.7% #114 1,517 0 0 2008 21–22 48.8% #72 1,574 0 2
27 2017 5–4 55.6% #169 1,650 0 0 2009 8–17 32.0% #90 1,533 0 2
28 2018 9–17 34.6% #83 1,594 0 0 2010 20–20 50.0% #41 1,656 0 2
29 2019 6–15 28.6% #119 1,594 0 0 2011 29–25 53.7% #41 1,713 0 2
30 2020 1–5 16.7% #116 1,602 0 0 2012 24–22 52.2% #28 1,721 0 2
31 2021 4–12 25.0% #147 1,537 0 0 2013 27–25 51.9% #35 1,675 0 2
32 2022 1–5 16.7% #260 1,497 0 0 2014 29–27 51.8% #40 1,611 0 3
33 — — — — — — — 2015 14–22 38.9% #99 1,549 0 3
34 — — — — — — — 2016 0–4 0.0% #400 1,486 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 Stefanie Voegele 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 %
18 2008 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
19 2009 6 6 12 50.0% 1 1 2 50.0% 3 2 5 60.0% — — — — 2001 — — — — 5 3 8 62.5% — — — — 0 1 1 0.0%
20 2010 8 13 21 38.1% 1 7 8 12.5% 0 2 2 0.0% — — — — 2002 0 2 2 0.0% 4 3 7 57.1% — — — — — — — —
21 2011 — — — — 1 1 2 50.0% — — — — — — — — 2003 3 6 9 33.3% 11 11 22 50.0% 0 1 1 0.0% 0 1 1 0.0%
22 2012 0 5 5 0.0% 2 2 4 50.0% — — — — — — — — 2004 8 12 20 40.0% 13 9 22 59.1% 5 2 7 71.4% — — — —
23 2013 13 13 26 50.0% 6 4 10 60.0% 1 2 3 33.3% 1 1 2 50.0% 2005 16 11 27 59.3% 11 6 17 64.7% 5 1 6 83.3% 0 1 1 0.0%
24 2014 10 13 23 43.5% 4 7 11 36.4% 0 2 2 0.0% 0 1 1 0.0% 2006 4 11 15 26.7% 4 7 11 36.4% 1 3 4 25.0% 1 1 2 50.0%
25 2015 6 10 16 37.5% 1 5 6 16.7% 0 2 2 0.0% — — — — 2007 5 7 12 41.7% 7 5 12 58.3% — — — — — — — —
26 2016 5 7 12 41.7% 5 4 9 55.6% 0 3 3 0.0% — — — — 2008 6 9 15 40.0% 15 10 25 60.0% 0 2 2 0.0% 0 1 1 0.0%
27 2017 5 4 9 55.6% — — — — — — — — — — — — 2009 1 7 8 12.5% 7 9 16 43.8% 0 1 1 0.0% — — — —
28 2018 6 10 16 37.5% 3 4 7 42.9% 0 3 3 0.0% — — — — 2010 12 11 23 52.2% 5 8 13 38.5% 3 1 4 75.0% — — — —
29 2019 4 10 14 28.6% 2 4 6 33.3% 0 1 1 0.0% — — — — 2011 16 15 31 51.6% 10 7 17 58.8% 2 2 4 50.0% 1 1 2 50.0%
30 2020 1 3 4 25.0% 0 2 2 0.0% — — — — — — — — 2012 8 12 20 40.0% 8 6 14 57.1% 5 3 8 62.5% 3 1 4 75.0%
31 2021 1 7 8 12.5% 3 5 8 37.5% — — — — — — — — 2013 17 16 33 51.5% 7 6 13 53.8% 2 2 4 50.0% 1 1 2 50.0%
32 2022 1 4 5 20.0% 0 1 1 0.0% — — — — — — — — 2014 18 17 35 51.4% 4 6 10 40.0% 6 3 9 66.7% 1 1 2 50.0%
33 — — — — — — — — — — — — — — — — — 2015 5 14 19 26.3% 6 5 11 54.5% 3 3 6 50.0% — — — —
34 — — — — — — — — — — — — — — — — — 2016 0 4 4 0.0% — — — — — — — — — — — —
Career — 66 106 172 38.4% 29 48 77 37.7% 4 17 21 19.0% 1 2 3 33.3% — 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 262/273 of Stefanie Voegele'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 Stefanie Voegele 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 2008 2/2 1.5 5.0 60.0% 55.1% 33.6% 16.3% 35.9% 46.4% 44.3% — —/— — — — — — — — — —
19 2009 19/19 2.7 3.2 55.6% 66.8% 41.1% 47.3% 48.0% 55.2% 43.4% — —/— — — — — — — — — —
20 2010 30/31 2.8 2.4 56.1% 60.6% 44.0% 42.9% 45.1% 53.4% 42.3% — —/— — — — — — — — — —
21 2011 2/2 3.5 2.5 58.4% 56.9% 43.4% 50.0% 34.7% 51.7% 40.6% — —/— — — — — — — — — —
22 2012 8/9 2.5 4.1 53.6% 59.9% 42.3% 48.9% 33.7% 51.9% 41.9% — —/— — — — — — — — — —
23 2013 40/41 3.5 2.7 54.9% 66.3% 46.8% 48.5% 40.8% 57.6% 41.9% — —/— — — — — — — — — —
24 2014 36/37 4.4 1.9 56.4% 64.9% 42.8% 47.4% 49.5% 55.2% 42.3% — —/— — — — — — — — — —
25 2015 17/24 3.1 2.3 60.4% 60.0% 45.8% 54.8% 47.5% 54.2% 37.1% — —/— — — — — — — — — —
26 2016 24/24 2.6 1.8 56.8% 61.1% 42.5% 48.6% 43.8% 53.2% 42.7% — —/— — — — — — — — — —
27 2017 9/9 3.9 3.0 55.5% 63.6% 42.5% 53.3% 44.0% 54.3% 42.0% — —/— — — — — — — — — —
28 2018 26/26 3.3 1.9 56.8% 64.0% 47.0% 49.9% 36.3% 56.4% 38.5% — —/— — — — — — — — — —
29 2019 21/21 2.2 2.8 56.8% 62.3% 40.6% 44.6% 46.9% 53.0% 41.5% — —/— — — — — — — — — —
30 2020 6/6 2.0 3.0 53.4% 63.9% 39.8% 43.6% 31.9% 52.8% 40.3% — —/— — — — — — — — — —
31 2021 16/16 2.4 2.8 56.4% 59.0% 42.2% 53.8% 40.4% 51.7% 40.3% — —/— — — — — — — — — —
32 2022 6/6 0.8 3.7 51.6% 51.5% 31.0% 44.0% 48.0% 42.1% 40.6% 2014 31/56 1.8 5.0 55.4% 61.0% 41.7% 47.6% 48.1% 51.9% 43.5%
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%
Career — 262/273 3.0 2.5 56.2% 62.8% 43.4% 47.9% 43.5% 54.3% 41.4% — 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 Stefanie Voegele 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
18 2008 1486 102.6 +0.81 +2.45 0.828 45.1% — — — 33.3% -1.67 0–2 1–0 — -0.30 — — — — — — — — — — — — — — — —
19 2009 1559 110.5 -1.00 -0.45 0.970 48.9% -15 — +110 44.4% -0.20 7–0 (100%) 0–3 (0%) 107.0 +1.19 2001 1520 104.0 — — — — — +55 — 47.8% +0.26 4–1 (80%) 0–1 — +1.03
20 2010 1504 114.4 -2.38 -0.92 0.908 47.8% +41 -52 — 37.7% -0.88 1–8 (11%) 4–5 (44%) 92.7 +0.26 2002 1527 105.4 — — — — — +71 — 50.0% -0.42 2–4 (33%) 1–0 — +0.68
21 2011 1518 101.1 -0.37 -0.64 0.842 46.1% — — — 50.0% -1.00 — — — -0.21 2003 1537 119.8 — — — — -60 +108 — 44.4% -0.35 7–8 (47%) 1–3 (25%) 99.1 +0.56
22 2012 1498 112.2 -1.83 -0.15 0.870 46.8% -12 +15 — 31.8% -1.23 1–3 (25%) — — -0.33 2004 1612 117.6 — — — — -110 +85 +30 49.5% -0.07 8–7 (53%) 6–4 (60%) 103.5 +0.67
23 2013 1665 132.8 +0.93 -1.21 0.988 49.8% -31 -48 -123 46.9% -0.05 14–4 (78%) 5–8 (38%) 112.4 -0.72 2005 1764 126.4 — — — — -90 +7 -18 55.5% +0.09 15–4 (79%) 9–2 (82%) 118.0 +1.13
24 2014 1544 116.4 -1.15 -1.36 0.944 48.6% +18 +54 — 43.7% -0.69 3–12 (20%) 6–6 (50%) 91.8 +0.91 2006 1547 107.1 — — — — +14 +77 +135 37.0% -1.05 2–7 (22%) 3–3 (50%) 92.0 +0.20
25 2015 1511 109.4 -3.15 -3.22 0.811 46.1% +55 +2 — 30.2% -1.26 3–4 (43%) 2–4 (33%) 97.9 -0.11 2007 1579 115.5 — — — — -13 +59 — 50.0% +0.06 3–5 (38%) 3–4 (43%) 98.3 +0.21
26 2016 1517 103.6 -2.18 -1.45 0.912 48.0% +27 +22 -70 42.0% -0.72 3–3 (50%) 0–2 — +1.52 2008 1574 111.3 — — — — -45 +84 — 48.5% -0.08 10–9 (53%) 3–5 (38%) 100.5 +0.48
27 2017 1651 123.2 -0.54 +0.06 0.918 48.3% +32 — — 50.0% -0.25 2–0 1–0 — +0.12 2009 1534 110.3 — — — — -72 +97 — 35.0% -0.95 5–5 (50%) 4–5 (44%) 100.5 -0.40
28 2018 1594 119.0 +0.12 -3.10 0.884 47.4% +36 -67 -143 39.3% -0.89 3–6 (33%) 2–3 (40%) 97.2 -1.04 2010 1657 126.4 — — — — -49 -66 +4 46.2% -0.20 10–5 (67%) 5–6 (45%) 106.2 +0.89
29 2019 1594 116.8 -2.79 -1.89 0.882 47.2% +41 -76 — 34.8% -1.02 0–4 (0%) 1–4 (20%) 92.2 -0.08 2011 1713 131.7 — — — — -15 -60 -54 50.4% -0.03 13–6 (68%) 7–4 (64%) 109.2 +0.80
30 2020 1602 112.7 -0.73 -1.09 0.854 46.6% +29 — — 28.6% -1.57 0–2 1–1 — +0.01 2012 1721 128.0 — — — — -45 -9 -3 51.0% +0.17 10–6 (63%) 5–7 (42%) 103.3 -0.68
31 2021 1538 111.9 -2.04 -1.43 0.834 46.0% +15 -4 — 28.9% -1.40 3–3 (50%) 1–1 — +0.06 2013 1676 139.6 — — — — -9 +65 +31 51.7% +0.15 9–9 (50%) 6–9 (40%) 95.7 -1.87
32 2022 1498 106.8 -4.32 -2.01 0.701 41.9% +78 — — 15.4% -2.46 1–0 — — +0.47 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 — — — — — — — — — — — — — — — — 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
Career — 1700 120.1 -1.29 -1.46 0.904 47.8% +20 -14 -33 39.1% -0.79 41–51 (45%) 24–37 (39%) 96.3 +0.64 — 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.