H2H data updated: 2026-09-14 00:00 UTC

Katerina Siniakova vs Polona Hercog H2H: 1-1

Katerina Siniakova and Polona Hercog are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, Katerina Siniakova leads 1–0 on clay, while Polona Hercog leads 1–0 on hard courts. Most recently, Polona Hercog won the 2019 Moscow first round 6-4 6-2.

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Katerina Siniakova
Czech Republic Age 30 Right-Handed 174 cm / 5'9"
H2H
1 – 1
2 main-draw meetings
Polona Hercog
Slovenia Age 35 Right-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Polona Hercog #49 6-4 6-2 Katerina Siniakova #60 Match data Oct 15, 2019 R32 Moscow Premier → modern equivalent WTA 500 Hard
Katerina Siniakova #76 6-1 6-4 Polona Hercog #72 Match data Apr 30, 2015* R16 Prague Open International → modern equivalent WTA 250 Clay

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
Katerina Siniakova #42 #27 1,718 1,893 228 246 48.1% 0 0 0 0 5 5
Polona Hercog #236 #35 1,605 1,767 170 214 44.3% 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 Katerina Siniakova Polona Hercog
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 2007 0–1 0.0% #375 1,488 0 0
17 2013 0–1 0.0% #171 1,488 0 0 2008 0–2 0.0% #245 1,470 0 0
18 2014 4–6 40.0% #84 1,521 0 0 2009 6–8 42.9% #68 1,501 0 0
19 2015 13–20 39.4% #102 1,522 0 0 2010 26–24 52.0% #47 1,633 0 0
20 2016 18–18 50.0% #52 1,765 0 0 2011 27–25 51.9% #36 1,698 0 1
21 2017 23–23 50.0% #49 1,695 0 2 2012 14–21 40.0% #76 1,665 0 2
22 2018 26–22 54.2% #31 1,779 0 2 2013 10–10 50.0% #65 1,673 0 2
23 2019 20–28 41.7% #58 1,674 0 2 2014 12–16 42.9% #97 1,638 0 2
24 2020 6–13 31.6% #59 1,701 0 2 2015 19–23 45.2% #73 1,606 0 2
25 2021 22–17 56.4% #49 1,801 0 2 2016 10–18 35.7% #143 1,558 0 2
26 2022 17–19 47.2% #49 1,762 0 3 2017 2–2 50.0% #101 1,571 0 2
27 2023 22–17 56.4% #45 1,807 0 5 2018 15–19 44.1% #85 1,623 0 2
28 2024 26–26 50.0% #45 1,802 0 5 2019 19–21 47.5% #49 1,715 0 3
29 2025 17–20 45.9% #48 1,883 0 5 2020 6–8 42.9% #49 1,684 0 3
30 2026 14–16 46.7% #42 1,820 0 5 2021 4–15 21.1% #134 1,589 0 3
35 — — — — — — — 2026 0–1 0.0% #236 1,563 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 Katerina Siniakova Polona Hercog
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 %
16 — — — — — — — — — — — — — — — — — 2007 0 1 1 0.0% — — — — — — — — — — — —
17 2013 0 1 1 0.0% — — — — — — — — — — — — 2008 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
18 2014 4 5 9 44.4% 0 1 1 0.0% — — — — — — — — 2009 1 4 5 20.0% 5 4 9 55.6% — — — — — — — —
19 2015 6 12 18 33.3% 4 5 9 44.4% 3 3 6 50.0% — — — — 2010 13 13 26 50.0% 13 10 23 56.5% 0 1 1 0.0% — — — —
20 2016 10 10 20 50.0% 6 5 11 54.5% 2 3 5 40.0% — — — — 2011 10 14 24 41.7% 16 9 25 64.0% 1 2 3 33.3% — — — —
21 2017 12 14 26 46.2% 10 6 16 62.5% 1 3 4 25.0% — — — — 2012 4 12 16 25.0% 10 6 16 62.5% 0 2 2 0.0% 0 1 1 0.0%
22 2018 17 14 31 54.8% 7 6 13 53.8% 2 2 4 50.0% — — — — 2013 7 8 15 46.7% 3 2 5 60.0% — — — — — — — —
23 2019 10 18 28 35.7% 9 7 16 56.3% 1 3 4 25.0% — — — — 2014 3 8 11 27.3% 8 6 14 57.1% 1 2 3 33.3% — — — —
24 2020 1 9 10 10.0% 5 4 9 55.6% — — — — — — — — 2015 10 15 25 40.0% 8 6 14 57.1% 1 2 3 33.3% — — — —
25 2021 9 12 21 42.9% 7 3 10 70.0% 6 2 8 75.0% — — — — 2016 1 8 9 11.1% 9 7 16 56.3% 0 3 3 0.0% — — — —
26 2022 11 11 22 50.0% 6 5 11 54.5% 0 3 3 0.0% — — — — 2017 — — — — 0 1 1 0.0% 2 1 3 66.7% — — — —
27 2023 16 14 30 53.3% 0 1 1 0.0% 6 2 8 75.0% — — — — 2018 4 9 13 30.8% 10 7 17 58.8% 1 3 4 25.0% — — — —
28 2024 17 17 34 50.0% 4 6 10 40.0% 5 3 8 62.5% — — — — 2019 6 14 20 30.0% 8 4 12 66.7% 5 3 8 62.5% — — — —
29 2025 14 11 25 56.0% 0 5 5 0.0% 3 4 7 42.9% — — — — 2020 1 2 3 33.3% 5 6 11 45.5% — — — — — — — —
30 2026 8 9 17 47.1% 4 4 8 50.0% 2 3 5 40.0% — — — — 2021 2 8 10 20.0% 2 5 7 28.6% 0 2 2 0.0% — — — —
35 — — — — — — — — — — — — — — — — — 2026 — — — — 0 1 1 0.0% — — — — — — — —
Career — 135 157 292 46.2% 62 58 120 51.7% 31 31 62 50.0% — — — — — 62 117 179 34.6% 97 75 172 56.4% 11 21 32 34.4% 0 1 1 0.0%

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 446/476 of Katerina Siniakova's and 352/384 of Polona Hercog'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 Katerina Siniakova Polona Hercog
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%
16 — —/— — — — — — — — — — 2007 1/1 6.0 5.0 69.5% 58.5% 36.1% 41.7% 80.0% 51.7% 39.4%
17 2013 1/1 5.0 11.0 61.3% 56.1% 38.9% 50.0% 71.4% 49.5% 44.6% 2008 1/2 0.0 5.0 84.0% 47.1% 23.1% 41.7% 62.5% 43.2% 45.7%
18 2014 10/10 1.7 4.4 61.7% 63.9% 42.1% 54.2% 38.1% 55.3% 45.6% 2009 13/14 2.1 2.8 61.8% 62.6% 45.1% 51.3% 42.4% 55.6% 39.8%
19 2015 26/33 1.7 5.5 66.1% 62.0% 50.4% 53.7% 47.1% 58.1% 41.4% 2010 46/50 2.2 2.7 62.0% 64.2% 48.6% 54.1% 48.1% 58.3% 42.8%
20 2016 34/37 2.7 4.0 58.7% 63.5% 43.7% 51.7% 50.0% 55.3% 43.5% 2011 46/52 2.6 2.7 65.1% 62.0% 48.8% 53.0% 47.3% 57.5% 41.9%
21 2017 45/46 2.2 3.8 62.4% 61.8% 42.4% 54.6% 49.1% 54.7% 43.6% 2012 33/35 2.2 2.4 60.0% 62.3% 44.3% 46.0% 48.7% 54.8% 40.5%
22 2018 48/48 4.2 4.0 59.3% 64.0% 45.4% 48.7% 46.8% 56.4% 43.2% 2013 14/20 2.7 2.5 66.6% 64.4% 51.1% 53.5% 45.6% 60.1% 42.5%
23 2019 47/48 2.8 2.9 60.4% 62.6% 46.1% 50.1% 46.4% 56.0% 45.3% 2014 24/28 3.0 2.8 57.1% 63.5% 46.2% 54.4% 38.9% 55.9% 39.8%
24 2020 19/19 1.7 3.1 65.8% 55.8% 42.7% 50.3% 46.1% 51.4% 40.6% 2015 37/42 2.8 3.1 63.8% 65.6% 52.4% 50.3% 53.0% 60.8% 40.6%
25 2021 39/39 1.7 5.9 61.3% 64.5% 45.4% 54.1% 55.5% 57.2% 46.6% 2016 26/28 2.0 3.4 58.7% 59.2% 43.1% 50.2% 52.7% 52.7% 43.8%
26 2022 32/36 1.5 4.9 64.5% 58.7% 41.3% 52.7% 50.7% 52.6% 42.8% 2017 4/4 3.8 3.8 60.4% 66.7% 48.5% 45.5% 48.2% 59.6% 45.1%
27 2023 38/39 2.3 5.1 62.6% 62.5% 44.4% 45.2% 43.9% 55.8% 45.8% 2018 34/34 3.2 3.9 55.6% 63.3% 48.9% 62.2% 37.8% 56.8% 41.5%
28 2024 50/52 1.8 5.3 61.6% 63.1% 44.7% 45.5% 51.0% 56.0% 45.9% 2019 39/40 3.5 4.3 55.9% 67.1% 48.4% 54.9% 46.8% 58.6% 40.7%
29 2025 28/38 1.8 5.6 61.3% 63.9% 41.8% 51.3% 47.9% 55.4% 44.6% 2020 14/14 2.1 3.4 56.8% 63.2% 46.7% 52.4% 53.1% 55.6% 44.0%
30 2026 29/30 1.8 4.7 61.5% 64.3% 45.2% 58.2% 44.6% 56.9% 44.0% 2021 19/19 3.4 3.6 55.4% 63.7% 43.6% 44.1% 34.2% 55.0% 39.2%
35 — —/— — — — — — — — — — 2026 1/1 0.0 1.0 37.5% 100.0% 40.0% — — 62.5% 14.3%
Career — 446/476 2.3 4.5 61.8% 62.6% 44.4% 51.0% 48.3% 55.6% 44.3% — 352/384 2.7 3.2 60.1% 63.7% 47.5% 52.3% 46.3% 57.1% 41.4%

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 Katerina Siniakova Polona Hercog
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
16 — — — — — — — — — — — — — — — — 2007 1489 100.3 -2.72 -1.27 0.816 46.1% — — — 33.3% -1.33 0–1 1–0 — -0.06
17 2013 1489 101.5 -2.26 +1.26 0.882 47.3% — — — 33.3% -1.00 0–1 — — -0.01 2008 1470 102.5 -2.06 -1.94 0.805 44.4% — — — 20.0% -1.20 0–1 — — -0.18
18 2014 1521 119.3 -0.71 -0.45 1.019 50.3% +20 — — 43.5% -0.22 1–2 (33%) 2–2 (50%) 100.8 +0.46 2009 1501 106.8 +0.29 -3.10 0.898 48.1% -40 +89 — 40.6% -0.53 3–1 (75%) 1–2 (33%) 102.8 +0.08
19 2015 1523 112.2 -0.42 -0.27 0.987 49.9% -25 +16 +104 41.3% -0.43 4–5 (44%) 3–6 (33%) 96.6 +0.31 2010 1634 130.1 +2.35 -0.89 1.024 50.4% -68 +49 — 50.0% +0.14 4–8 (33%) 1–2 (33%) 96.6 -0.18
20 2016 1765 130.6 -0.14 +0.26 0.975 49.6% -53 -89 -86 49.4% -0.07 7–6 (54%) 3–2 (60%) 103.3 -2.24 2011 1699 128.3 +1.64 -2.16 0.985 49.5% -94 +106 -139 51.3% +0.03 9–6 (60%) 5–8 (38%) 100.2 -0.20
21 2017 1695 133.7 -0.94 +0.48 0.963 49.3% -23 +84 -66 50.0% -0.08 11–9 (55%) 4–2 (67%) 103.3 -1.76 2012 1666 121.2 -0.89 -2.18 0.897 47.5% -100 +153 — 40.3% -0.94 4–3 (57%) 3–4 (43%) 101.7 -1.34
22 2018 1780 137.2 -0.09 +0.44 0.989 49.7% -11 -32 -109 53.0% +0.04 13–10 (57%) 10–8 (56%) 102.2 +0.17 2013 1674 131.4 +2.50 +0.02 1.065 51.3% -74 +126 — 52.2% +0.52 2–6 (25%) 1–6 (14%) 91.8 -0.86
23 2019 1675 133.8 -0.06 +1.86 1.029 50.5% -18 +94 -38 42.3% -0.28 8–11 (42%) 5–5 (50%) 96.9 -0.30 2014 1639 121.6 -0.49 -2.45 0.903 48.0% -47 +97 -116 43.5% -0.42 5–3 (63%) 3–5 (38%) 100.2 -1.81
24 2020 1701 130.6 -3.03 -0.58 0.836 46.1% -49 +82 — 33.3% -1.10 2–2 (50%) 2–0 — -1.42 2015 1606 121.6 +1.66 -0.91 1.034 50.7% -33 +93 -84 49.5% -0.03 5–14 (26%) 4–5 (44%) 91.7 +0.24
25 2021 1802 144.9 +1.25 +3.21 1.089 51.8% -109 +51 -13 54.7% +0.44 9–8 (53%) 8–3 (73%) 107.7 -2.85 2016 1559 116.5 -2.35 +0.40 0.926 48.3% -25 +109 -113 42.4% -0.37 2–5 (29%) 4–1 (80%) 98.5 -1.05
26 2022 1763 133.3 -2.97 +0.63 0.904 47.8% -22 +55 -76 46.2% -0.36 8–6 (57%) 3–3 (50%) 101.6 -1.47 2017 1571 105.5 +0.03 -1.29 1.118 51.8% — — -87 50.0% +0.60 1–1 0–2 — +0.25
27 2023 1808 135.0 -0.13 +2.23 1.035 50.6% -25 — -7 55.8% +0.38 4–5 (44%) 5–6 (45%) 98.4 -1.66 2018 1624 119.4 -0.20 -1.09 0.959 49.0% -61 +57 -123 45.8% -0.32 3–5 (38%) 3–4 (43%) 97.3 -0.53
28 2024 1803 141.8 -0.23 +2.61 1.042 50.8% -30 -33 +120 55.1% +0.39 7–13 (35%) 4–8 (33%) 87.5 -1.28 2019 1715 133.2 +1.87 -1.25 0.983 49.7% -111 +63 -107 47.9% -0.16 8–10 (44%) 6–10 (38%) 98.0 -0.38
29 2025 1883 142.0 -0.67 +0.92 1.002 50.0% +19 -217 +75 48.8% -0.13 4–8 (33%) 5–4 (56%) 94.0 -1.48 2020 1685 125.8 +0.14 +0.43 0.991 50.0% -59 +53 — 48.5% -0.03 1–4 (20%) 0–3 (0%) — +0.33
30 2026 1821 142.6 +0.08 +1.58 1.022 50.5% +25 -134 +86 50.0% -0.07 4–7 (36%) 4–4 (50%) 95.9 -0.57 2021 1590 121.5 -0.67 -1.96 0.871 46.9% -38 +130 — 30.4% -1.39 2–6 (25%) 0–4 (0%) 92.6 -1.36
31 — — — — — — — — — — — — — — — — 2022 1573 — — — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — 2023 1581 — — — — — — — — — — — — — —
33 — — — — — — — — — — — — — — — — 2024 1577 99.9 — — — — — — — — — — — — —
34 — — — — — — — — — — — — — — — — 2025 1620 — — — — — — — — — — — — — —
35 — — — — — — — — — — — — — — — — 2026 1564 99.1 -0.36 -0.84 0.381 40.0% — — — — — — — — -0.19
Career — 1893 141.3 -0.47 +1.23 0.997 49.9% -24 +8 +14 49.1% -0.05 82–93 (47%) 58–53 (52%) 97.7 -2.99 — 1767 129.3 +0.66 -1.31 0.965 49.2% -68 +90 -110 46.2% -0.23 49–74 (40%) 32–56 (36%) 87.4 -1.91

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.