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

Polona Hercog vs Karin Knapp H2H: 1-2

Karin Knapp holds a 2–1 lead over Polona Hercog in their WTA head-to-head. Across 3 main-draw meetings, Karin Knapp leads 2–1 on clay. Most recently, Karin Knapp won the 2015 Bad Gastein quarterfinal 7-6(5) 7-5.

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Polona Hercog
Slovenia Age 35 Right-Handed 185 cm / 6'1"
H2H
1 – 2
3 main-draw meetings
Karin Knapp
Italy Age 39 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Karin Knapp #43 7-6(5) 7-5 Polona Hercog #78 Match data Jul 25, 2015* QF Bad Gastein International → modern equivalent WTA 250 Clay
Karin Knapp #52 6-3 6-3 Polona Hercog #61 Match data May 23, 2014* R16 Nuremberg International → modern equivalent WTA 250 Clay
Polona Hercog #37 5-7 6-4 6-2 Karin Knapp #216 Match data Jul 14, 2011* R32 Palermo 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
Polona Hercog #236 #35 1,605 1,767 170 214 44.3% 0 0 0 0 3 3
Karin Knapp #971 #33 1,420 1,710 103 118 46.6% 0 0 0 0 2 2

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 Polona Hercog Karin Knapp
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 2007 0–1 0.0% #375 1,488 0 0 — — — — — — —
17 2008 0–2 0.0% #245 1,470 0 0 — — — — — — —
18 2009 6–8 42.9% #68 1,501 0 0 — — — — — — —
19 2010 26–24 52.0% #47 1,633 0 0 2006 3–4 42.9% #122 1,513 0 0
20 2011 27–25 51.9% #36 1,698 0 1 2007 14–14 50.0% #50 1,587 0 0
21 2012 14–21 40.0% #76 1,665 0 2 2008 11–14 44.0% #80 1,603 0 0
22 2013 10–10 50.0% #65 1,673 0 2 2009 3–6 33.3% #205 1,555 0 0
23 2014 12–16 42.9% #97 1,638 0 2 — — — — — — —
24 2015 19–23 45.2% #73 1,606 0 2 2011 0–3 0.0% #164 1,530 0 0
25 2016 10–18 35.7% #143 1,558 0 2 2012 7–7 50.0% #120 1,561 0 0
26 2017 2–2 50.0% #101 1,571 0 2 2013 20–15 57.1% #41 1,680 0 0
27 2018 15–19 44.1% #85 1,623 0 2 2014 18–24 42.9% #54 1,644 0 1
28 2019 19–21 47.5% #49 1,715 0 3 2015 22–20 52.4% #51 1,704 0 2
29 2020 6–8 42.9% #49 1,684 0 3 2016 5–10 33.3% #147 1,637 0 2
30 2021 4–15 21.1% #134 1,589 0 3 2017 0–1 0.0% #966 1,617 0 2
35 2026 0–1 0.0% #236 1,586 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 Polona Hercog Karin Knapp
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 2008 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
18 2009 1 4 5 20.0% 5 4 9 55.6% — — — — — — — — — — — — — — — — — — — — — — — — —
19 2010 13 13 26 50.0% 13 10 23 56.5% 0 1 1 0.0% — — — — 2006 1 2 3 33.3% 2 2 4 50.0% — — — — — — — —
20 2011 10 14 24 41.7% 16 9 25 64.0% 1 2 3 33.3% — — — — 2007 3 5 8 37.5% 11 7 18 61.1% 0 2 2 0.0% — — — —
21 2012 4 12 16 25.0% 10 6 16 62.5% 0 2 2 0.0% 0 1 1 0.0% 2008 7 8 15 46.7% 4 5 9 44.4% — — — — 0 1 1 0.0%
22 2013 7 8 15 46.7% 3 2 5 60.0% — — — — — — — — 2009 3 4 7 42.9% 0 2 2 0.0% — — — — — — — —
23 2014 3 8 11 27.3% 8 6 14 57.1% 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
24 2015 10 15 25 40.0% 8 6 14 57.1% 1 2 3 33.3% — — — — 2011 0 2 2 0.0% 0 1 1 0.0% — — — — — — — —
25 2016 1 8 9 11.1% 9 7 16 56.3% 0 3 3 0.0% — — — — 2012 1 2 3 33.3% 6 4 10 60.0% 0 1 1 0.0% — — — —
26 2017 — — — — 0 1 1 0.0% 2 1 3 66.7% — — — — 2013 6 6 12 50.0% 11 8 19 57.9% 3 1 4 75.0% — — — —
27 2018 4 9 13 30.8% 10 7 17 58.8% 1 3 4 25.0% — — — — 2014 13 15 28 46.4% 4 7 11 36.4% 0 1 1 0.0% 1 1 2 50.0%
28 2019 6 14 20 30.0% 8 4 12 66.7% 5 3 8 62.5% — — — — 2015 10 13 23 43.5% 12 4 16 75.0% 0 3 3 0.0% — — — —
29 2020 1 2 3 33.3% 5 6 11 45.5% — — — — — — — — 2016 0 4 4 0.0% 5 5 10 50.0% 0 1 1 0.0% — — — —
30 2021 2 8 10 20.0% 2 5 7 28.6% 0 2 2 0.0% — — — — 2017 0 1 1 0.0% — — — — — — — — — — — —
35 2026 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 62 117 179 34.6% 97 75 172 56.4% 11 21 32 34.4% 0 1 1 0.0% — 44 62 106 41.5% 55 45 100 55.0% 3 9 12 25.0% 1 2 3 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 352/384 of Polona Hercog's and 191/221 of Karin Knapp'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 Polona Hercog Karin Knapp
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 2008 1/2 0.0 5.0 84.0% 47.1% 23.1% 41.7% 62.5% 43.2% 45.7% — —/— — — — — — — — — —
18 2009 13/14 2.1 2.8 61.8% 62.6% 45.1% 51.3% 42.4% 55.6% 39.8% — —/— — — — — — — — — —
19 2010 46/50 2.2 2.7 62.0% 64.2% 48.6% 54.1% 48.1% 58.3% 42.8% 2006 2/7 2.5 4.5 56.9% 69.2% 46.9% 37.5% 67.9% 60.1% 43.1%
20 2011 46/52 2.6 2.7 65.1% 62.0% 48.8% 53.0% 47.3% 57.5% 41.9% 2007 19/28 3.0 6.3 54.6% 65.6% 42.6% 50.6% 36.5% 55.0% 44.6%
21 2012 33/35 2.2 2.4 60.0% 62.3% 44.3% 46.0% 48.7% 54.8% 40.5% 2008 21/25 2.1 5.0 60.9% 60.3% 40.5% 48.7% 51.3% 52.6% 43.1%
22 2013 14/20 2.7 2.5 66.6% 64.4% 51.1% 53.5% 45.6% 60.1% 42.5% 2009 8/9 0.8 5.3 50.2% 59.7% 41.0% 49.3% 44.6% 49.7% 43.9%
23 2014 24/28 3.0 2.8 57.1% 63.5% 46.2% 54.4% 38.9% 55.9% 39.8% — —/— — — — — — — — — —
24 2015 37/42 2.8 3.1 63.8% 65.6% 52.4% 50.3% 53.0% 60.8% 40.6% 2011 3/3 1.0 10.7 59.1% 60.2% 39.8% 51.3% 49.7% 51.6% 41.5%
25 2016 26/28 2.0 3.4 58.7% 59.2% 43.1% 50.2% 52.7% 52.7% 43.8% 2012 14/14 1.6 6.0 59.3% 60.0% 40.5% 49.9% 43.5% 52.0% 44.1%
26 2017 4/4 3.8 3.8 60.4% 66.7% 48.5% 45.5% 48.2% 59.6% 45.1% 2013 29/35 2.9 5.0 56.6% 67.7% 43.8% 54.9% 50.9% 57.4% 46.7%
27 2018 34/34 3.2 3.9 55.6% 63.3% 48.9% 62.2% 37.8% 56.8% 41.5% 2014 39/42 3.6 4.7 57.7% 65.5% 43.2% 50.6% 51.2% 55.9% 41.9%
28 2019 39/40 3.5 4.3 55.9% 67.1% 48.4% 54.9% 46.8% 58.6% 40.7% 2015 41/42 2.5 4.2 64.1% 61.4% 48.0% 52.5% 49.5% 56.7% 43.8%
29 2020 14/14 2.1 3.4 56.8% 63.2% 46.7% 52.4% 53.1% 55.6% 44.0% 2016 14/15 2.7 4.9 56.1% 61.7% 41.1% 46.8% 45.0% 52.8% 40.7%
30 2021 19/19 3.4 3.6 55.4% 63.7% 43.6% 44.1% 34.2% 55.0% 39.2% 2017 1/1 3.0 5.0 48.1% 60.0% 29.6% 58.3% 50.0% 44.2% 44.7%
35 2026 1/1 0.0 1.0 37.5% 100.0% 40.0% — — 62.5% 14.3% — —/— — — — — — — — — —
Career — 352/384 2.7 3.2 60.1% 63.7% 47.5% 52.3% 46.3% 57.1% 41.4% — 191/221 2.6 5.1 58.6% 63.4% 43.5% 51.0% 48.2% 55.0% 43.6%

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 Polona Hercog Karin Knapp
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 2008 1470 102.5 -2.06 -1.94 0.805 44.4% — — — 20.0% -1.20 0–1 — — -0.18 — — — — — — — — — — — — — — — —
18 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 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 2006 1513 108.6 -0.12 -2.10 1.081 52.1% -5 +47 — 47.1% +0.47 1–2 (33%) 2–4 (33%) 98.3 +0.25
20 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 2007 1587 121.4 -0.55 -0.12 0.990 49.7% -69 +90 — 49.3% 0.00 6–7 (46%) 6–3 (67%) 101.3 +0.69
21 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 2008 1603 120.0 -1.76 -0.63 0.909 48.0% -25 +27 — 46.6% -0.74 3–5 (38%) 5–3 (63%) 99.5 +1.04
22 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 2009 1556 96.3 -3.79 -1.88 0.874 46.7% +5 — — 25.0% -1.75 — 1–1 — +1.05
23 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 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 2011 1531 107.5 +1.01 -0.38 0.858 47.0% — — — 33.3% -1.11 0–3 (0%) 2–1 (67%) — -0.47
25 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 2012 1562 108.4 -2.46 -0.27 0.918 48.2% -36 +93 — 45.7% -0.69 5–2 (71%) 1–1 — +0.13
26 2017 1571 105.5 +0.03 -1.29 1.118 51.8% — — -87 50.0% +0.60 1–1 0–2 — +0.25 2013 1681 127.7 +1.14 +1.48 1.097 52.0% -86 -9 -89 57.3% +0.40 5–7 (42%) 5–1 (83%) 103.3 +0.66
27 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 2014 1645 120.9 -0.61 -1.24 0.951 49.0% -13 -18 — 45.7% -0.48 4–8 (33%) 6–5 (55%) 97.7 +0.92
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 2015 1704 130.8 -0.82 +1.99 1.010 50.4% -81 +81 -160 53.8% +0.27 6–5 (55%) 7–7 (50%) 102.7 -0.73
29 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 2016 1637 105.2 -1.99 -0.46 0.862 46.9% -62 +121 — 36.4% -1.42 1–4 (20%) 2–0 — -0.47
30 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 2017 1618 — -0.56 -4.07 0.802 44.4% — — — — — — — — +0.14
31 2022 1573 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
32 2023 1581 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
33 2024 1577 99.9 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
34 2025 1620 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
35 2026 1586 99.1 -0.36 -0.84 0.381 40.0% — — — — — — — — -0.19 — — — — — — — — — — — — — — — —
Career — 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 — 1711 124.9 -0.85 +0.14 0.969 49.4% -43 +53 -119 48.2% -0.26 31–43 (42%) 37–26 (59%) 103.3 +1.45

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.