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

Polona Hercog vs Kiki Bertens H2H: 3-1

Polona Hercog holds a 3–1 lead over Kiki Bertens in their WTA head-to-head. Across 4 main-draw meetings, Polona Hercog leads 2–0 on clay, while they are tied 1–1 on hard courts. Most recently, Polona Hercog won the 2021 Roland Garros first round 6-1 3-6 6-4.

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Polona Hercog
Slovenia Age 35 Right-Handed 185 cm / 6'1"
H2H
3 – 1
4 main-draw meetings
Kiki Bertens
NED Age 34 Right-Handed 182 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Polona Hercog #73 6-1 3-6 6-4 Kiki Bertens #17 Match data Jun 1, 2021* R128 Roland Garros Grand Slam Clay
Polona Hercog #50 6-4 6-4 Kiki Bertens #8 Match data Sep 17, 2020* R32 Italian Open Premier 5 → modern equivalent WTA 1000 Clay
Kiki Bertens #8 7-6(6) 2-6 6-3 Polona Hercog #51 Match data Oct 2, 2019 R16 China Open Premier Mandatory → modern equivalent WTA 1000 Hard
Polona Hercog #63 6-4 0-0 (ret.) Kiki Bertens #72 Match data Aug 23, 2012* R32 Dallas 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
Polona Hercog #236 #35 1,605 1,767 170 214 44.3% 0 0 0 0 3 3
Kiki Bertens #25 #4 5,430 2,004 216 172 55.7% 0 2 0 3 6 11

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 Kiki Bertens
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 2011 0–1 0.0% #182 1,493 0 0
20 2011 27–25 51.9% #36 1,698 0 1 2012 11–12 47.8% #63 1,580 0 1
21 2012 14–21 40.0% #76 1,665 0 2 2013 14–19 42.4% #87 1,551 0 1
22 2013 10–10 50.0% #65 1,673 0 2 2014 11–14 44.0% #68 1,579 0 1
23 2014 12–16 42.9% #97 1,638 0 2 2015 7–17 29.2% #104 1,520 0 1
24 2015 19–23 45.2% #73 1,606 0 2 2016 26–20 56.5% #22 1,689 0 2
25 2016 10–18 35.7% #143 1,558 0 2 2017 30–26 53.6% #31 1,696 0 5
26 2017 2–2 50.0% #101 1,571 0 2 2018 46–23 66.7% #9 1,911 0 8
27 2018 15–19 44.1% #85 1,623 0 2 2019 57–26 68.7% #9 1,897 0 10
28 2019 19–21 47.5% #49 1,715 0 3 2020 13–6 68.4% #9 1,882 0 11
29 2020 6–8 42.9% #49 1,684 0 3 2021 1–8 11.1% #25 1,733 0 11
30 2021 4–15 21.1% #134 1,589 0 3 — — — — — — —
35 2026 0–1 0.0% #236 1,600 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 Kiki Bertens
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% — — — — 2011 — — — — — — — — 0 1 1 0.0% — — — —
20 2011 10 14 24 41.7% 16 9 25 64.0% 1 2 3 33.3% — — — — 2012 5 7 12 41.7% 5 3 8 62.5% 1 2 3 33.3% — — — —
21 2012 4 12 16 25.0% 10 6 16 62.5% 0 2 2 0.0% 0 1 1 0.0% 2013 5 8 13 38.5% 6 8 14 42.9% 0 2 2 0.0% 3 1 4 75.0%
22 2013 7 8 15 46.7% 3 2 5 60.0% — — — — — — — — 2014 5 10 15 33.3% 6 4 10 60.0% — — — — — — — —
23 2014 3 8 11 27.3% 8 6 14 57.1% 1 2 3 33.3% — — — — 2015 3 12 15 20.0% 1 3 4 25.0% 3 2 5 60.0% — — — —
24 2015 10 15 25 40.0% 8 6 14 57.1% 1 2 3 33.3% — — — — 2016 7 14 21 33.3% 17 5 22 77.3% 2 1 3 66.7% — — — —
25 2016 1 8 9 11.1% 9 7 16 56.3% 0 3 3 0.0% — — — — 2017 7 16 23 30.4% 23 7 30 76.7% 0 3 3 0.0% — — — —
26 2017 — — — — 0 1 1 0.0% 2 1 3 66.7% — — — — 2018 26 15 41 63.4% 15 5 20 75.0% 5 3 8 62.5% — — — —
27 2018 4 9 13 30.8% 10 7 17 58.8% 1 3 4 25.0% — — — — 2019 30 18 48 62.5% 18 5 23 78.3% 9 3 12 75.0% — — — —
28 2019 6 14 20 30.0% 8 4 12 66.7% 5 3 8 62.5% — — — — 2020 10 3 13 76.9% 3 3 6 50.0% — — — — — — — —
29 2020 1 2 3 33.3% 5 6 11 45.5% — — — — — — — — 2021 0 4 4 0.0% 1 2 3 33.3% 0 2 2 0.0% — — — —
30 2021 2 8 10 20.0% 2 5 7 28.6% 0 2 2 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% — 98 107 205 47.8% 95 45 140 67.9% 20 19 39 51.3% 3 1 4 75.0%

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 352/384 of Polona Hercog's and 361/388 of Kiki Bertens'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 Kiki Bertens
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% 2011 1/1 3.0 5.0 53.7% 61.1% 32.3% 50.0% 42.9% 47.8% 40.9%
20 2011 46/52 2.6 2.7 65.1% 62.0% 48.8% 53.0% 47.3% 57.5% 41.9% 2012 23/23 2.9 4.1 60.5% 65.3% 41.1% 49.3% 48.2% 55.7% 42.3%
21 2012 33/35 2.2 2.4 60.0% 62.3% 44.3% 46.0% 48.7% 54.8% 40.5% 2013 30/33 2.2 5.5 57.6% 61.8% 42.9% 51.9% 45.5% 54.1% 43.7%
22 2013 14/20 2.7 2.5 66.6% 64.4% 51.1% 53.5% 45.6% 60.1% 42.5% 2014 22/25 2.7 4.0 58.1% 60.8% 44.5% 49.6% 41.8% 53.8% 45.8%
23 2014 24/28 3.0 2.8 57.1% 63.5% 46.2% 54.4% 38.9% 55.9% 39.8% 2015 19/24 1.9 5.1 63.9% 59.1% 51.6% 53.8% 57.3% 56.1% 36.8%
24 2015 37/42 2.8 3.1 63.8% 65.6% 52.4% 50.3% 53.0% 60.8% 40.6% 2016 45/46 3.8 3.4 60.1% 67.4% 47.6% 55.6% 44.9% 59.0% 46.0%
25 2016 26/28 2.0 3.4 58.7% 59.2% 43.1% 50.2% 52.7% 52.7% 43.8% 2017 54/56 4.5 4.4 55.5% 71.4% 43.7% 54.1% 50.0% 59.1% 45.9%
26 2017 4/4 3.8 3.8 60.4% 66.7% 48.5% 45.5% 48.2% 59.6% 45.1% 2018 64/69 4.8 4.0 58.0% 69.1% 47.9% 51.8% 51.7% 60.0% 46.8%
27 2018 34/34 3.2 3.9 55.6% 63.3% 48.9% 62.2% 37.8% 56.8% 41.5% 2019 76/83 5.6 4.4 57.1% 72.6% 47.2% 58.5% 48.8% 61.8% 43.6%
28 2019 39/40 3.5 4.3 55.9% 67.1% 48.4% 54.9% 46.8% 58.6% 40.7% 2020 19/19 4.2 3.8 63.7% 68.3% 43.5% 59.6% 57.0% 59.1% 47.0%
29 2020 14/14 2.1 3.4 56.8% 63.2% 46.7% 52.4% 53.1% 55.6% 44.0% 2021 8/9 1.5 4.8 64.5% 58.8% 40.4% 44.2% 43.1% 51.9% 37.9%
30 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 — 352/384 2.7 3.2 60.1% 63.7% 47.5% 52.3% 46.3% 57.1% 41.4% — 361/388 4.0 4.3 58.6% 67.8% 45.8% 54.1% 49.0% 58.5% 44.6%

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 Kiki Bertens
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 2011 1494 97.6 +1.77 -1.03 0.783 44.4% — — — 0.0% -3.00 — 0–1 — -0.13
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 2012 1580 118.0 +0.05 -1.16 0.955 49.1% -24 +11 +4 47.1% -0.27 5–2 (71%) 3–1 (75%) 107.6 -0.87
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 2013 1551 121.8 -1.34 -0.74 0.952 48.8% +33 +22 — 44.6% -0.39 5–7 (42%) 3–3 (50%) 98.8 -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 2014 1580 124.4 -1.78 +0.96 0.993 49.7% -23 +77 — 47.2% -0.02 4–5 (44%) 3–3 (50%) 100.6 -0.24
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 2015 1520 114.8 -1.77 -2.92 0.837 46.5% -52 +93 +82 34.5% -1.07 2–7 (22%) 3–2 (60%) 95.7 -1.23
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 2016 1689 132.6 +2.91 +1.95 1.122 52.4% -129 +137 -72 54.6% +0.61 6–5 (55%) 6–5 (55%) 101.8 -1.68
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 2017 1696 135.9 +2.41 +1.24 1.122 52.6% -173 +308 -130 54.9% +0.68 3–8 (27%) 3–8 (27%) 90.8 +1.57
26 2017 1571 105.5 +0.03 -1.29 1.118 51.8% — — -87 50.0% +0.60 1–1 0–2 — +0.25 2018 1911 154.4 +3.14 +4.20 1.171 53.3% -97 +80 -217 63.3% +1.14 14–12 (54%) 10–15 (40%) 100.3 -1.83
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 2019 1897 153.7 +4.80 +1.58 1.142 52.4% -14 +155 -90 65.1% +0.95 18–13 (58%) 12–12 (50%) 102.5 +0.54
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 2020 1883 144.7 +1.90 +2.64 1.150 53.1% +54 +91 — 65.1% +1.09 5–2 (71%) 3–0 (100%) 105.1 +1.01
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 2021 1733 102.2 -2.11 -1.63 0.787 44.9% +114 +208 — 20.0% -2.00 0–2 — — +0.66
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 — — — — — — — — — — — — — — — —
31 2022 1573 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
32 2023 1581 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
33 2024 1577 99.9 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
34 2025 1620 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
35 2026 1601 98.5 -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 — 2004 143.8 +2.04 +1.38 1.074 51.4% -53 +144 -88 55.1% +0.46 62–63 (50%) 46–50 (48%) 100.2 -0.84

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.