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

Madison Keys vs Polona Hercog H2H: 1-1

Madison Keys and Polona Hercog are tied 1–1 in their WTA head-to-head. Across 2 main-draw meetings, Madison Keys leads 1–0 on clay, while Polona Hercog leads 1–0 on grass. Most recently, Polona Hercog won the 2019 Wimbledon second round 6-2 6-4.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Madison Keys
United States Age 31 Right-Handed 178 cm / 5'10"
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 #60 6-2 6-4 Madison Keys #16 Match data Jul 4, 2019* R64 Wimbledon Grand Slam Grass
Madison Keys #14 6-4 7-6(3) Polona Hercog #71 Match data May 15, 2019* R64 Italian Open Premier 5 → modern equivalent WTA 1000 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
Madison Keys #24 #5 5,004 2,134 374 217 63.3% 1 1 0 7 2 11
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 Madison Keys Polona Hercog
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 2009 1–1 50.0% #616 1,512 0 0 — — — — — — —
16 2011 1–2 33.3% #273 1,516 0 0 2007 0–1 0.0% #375 1,488 0 0
17 2012 1–4 20.0% #137 1,514 0 0 2008 0–2 0.0% #245 1,470 0 0
18 2013 24–17 58.5% #38 1,725 0 0 2009 6–8 42.9% #68 1,501 0 0
19 2014 27–21 56.2% #30 1,743 0 1 2010 26–24 52.0% #47 1,633 0 0
20 2015 31–19 62.0% #18 1,810 0 1 2011 27–25 51.9% #36 1,698 0 1
21 2016 46–18 71.9% #8 1,943 0 2 2012 14–21 40.0% #76 1,665 0 2
22 2017 17–10 63.0% #19 1,902 0 3 2013 10–10 50.0% #65 1,673 0 2
23 2018 28–16 63.6% #17 1,907 0 3 2014 12–16 42.9% #97 1,638 0 2
24 2019 27–13 67.5% #13 1,913 0 5 2015 19–23 45.2% #73 1,606 0 2
25 2020 8–5 61.5% #16 1,869 0 5 2016 10–18 35.7% #143 1,558 0 2
26 2021 11–15 42.3% #56 1,733 0 5 2017 2–2 50.0% #101 1,571 0 2
27 2022 30–19 61.2% #11 1,865 0 6 2018 15–19 44.1% #85 1,623 0 2
28 2023 29–16 64.4% #12 1,907 0 7 2019 19–21 47.5% #49 1,715 0 3
29 2024 25–12 67.6% #21 1,945 0 8 2020 6–8 42.9% #49 1,684 0 3
30 2025 37–15 71.2% #7 1,964 1 10 2021 4–15 21.1% #134 1,589 0 3
31 2026 31–14 68.9% #24 1,982 1 11 — — — — — — —
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 Madison Keys 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 %
14 2009 — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
16 2011 1 2 3 33.3% — — — — — — — — — — — — 2007 0 1 1 0.0% — — — — — — — — — — — —
17 2012 1 4 5 20.0% — — — — — — — — — — — — 2008 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
18 2013 14 11 25 56.0% 5 4 9 55.6% 5 2 7 71.4% — — — — 2009 1 4 5 20.0% 5 4 9 55.6% — — — — — — — —
19 2014 14 14 28 50.0% 5 5 10 50.0% 8 2 10 80.0% — — — — 2010 13 13 26 50.0% 13 10 23 56.5% 0 1 1 0.0% — — — —
20 2015 18 12 30 60.0% 9 5 14 64.3% 4 2 6 66.7% — — — — 2011 10 14 24 41.7% 16 9 25 64.0% 1 2 3 33.3% — — — —
21 2016 28 13 41 68.3% 10 4 14 71.4% 8 1 9 88.9% — — — — 2012 4 12 16 25.0% 10 6 16 62.5% 0 2 2 0.0% 0 1 1 0.0%
22 2017 15 5 20 75.0% 1 4 5 20.0% 1 1 2 50.0% — — — — 2013 7 8 15 46.7% 3 2 5 60.0% — — — — — — — —
23 2018 16 10 26 61.5% 10 5 15 66.7% 2 1 3 66.7% — — — — 2014 3 8 11 27.3% 8 6 14 57.1% 1 2 3 33.3% — — — —
24 2019 16 9 25 64.0% 10 3 13 76.9% 1 1 2 50.0% — — — — 2015 10 15 25 40.0% 8 6 14 57.1% 1 2 3 33.3% — — — —
25 2020 8 4 12 66.7% 0 1 1 0.0% — — — — — — — — 2016 1 8 9 11.1% 9 7 16 56.3% 0 3 3 0.0% — — — —
26 2021 3 9 12 25.0% 3 4 7 42.9% 5 2 7 71.4% — — — — 2017 — — — — 0 1 1 0.0% 2 1 3 66.7% — — — —
27 2022 25 14 39 64.1% 4 4 8 50.0% 1 1 2 50.0% — — — — 2018 4 9 13 30.8% 10 7 17 58.8% 1 3 4 25.0% — — — —
28 2023 14 12 26 53.8% 6 3 9 66.7% 9 1 10 90.0% — — — — 2019 6 14 20 30.0% 8 4 12 66.7% 5 3 8 62.5% — — — —
29 2024 7 6 13 53.8% 13 4 17 76.5% 5 2 7 71.4% — — — — 2020 1 2 3 33.3% 5 6 11 45.5% — — — — — — — —
30 2025 24 8 32 75.0% 9 4 13 69.2% 4 3 7 57.1% — — — — 2021 2 8 10 20.0% 2 5 7 28.6% 0 2 2 0.0% — — — —
31 2026 14 9 23 60.9% 7 3 10 70.0% 10 2 12 83.3% — — — — — — — — — — — — — — — — — — — — —
35 — — — — — — — — — — — — — — — — — 2026 — — — — 0 1 1 0.0% — — — — — — — —
Career — 218 142 360 60.6% 93 54 147 63.3% 63 21 84 75.0% — — — — — 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 543/591 of Madison Keys'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 Madison Keys 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%
14 2009 2/2 3.0 2.0 47.5% 66.4% 55.5% 44.4% 41.7% 60.1% 39.4% — —/— — — — — — — — — —
16 2011 3/3 5.0 6.3 55.4% 67.2% 46.9% 60.5% 44.8% 58.2% 44.8% 2007 1/1 6.0 5.0 69.5% 58.5% 36.1% 41.7% 80.0% 51.7% 39.4%
17 2012 5/5 2.0 3.4 58.1% 56.5% 44.8% 38.4% 32.9% 51.2% 36.0% 2008 1/2 0.0 5.0 84.0% 47.1% 23.1% 41.7% 62.5% 43.2% 45.7%
18 2013 39/41 5.4 2.1 59.6% 70.0% 48.7% 65.0% 45.9% 61.4% 42.4% 2009 13/14 2.1 2.8 61.8% 62.6% 45.1% 51.3% 42.4% 55.6% 39.8%
19 2014 45/48 4.8 1.9 60.0% 69.4% 50.0% 50.9% 48.7% 61.9% 43.5% 2010 46/50 2.2 2.7 62.0% 64.2% 48.6% 54.1% 48.1% 58.3% 42.8%
20 2015 38/50 7.3 2.2 62.2% 71.5% 51.3% 61.5% 48.1% 64.1% 41.2% 2011 46/52 2.6 2.7 65.1% 62.0% 48.8% 53.0% 47.3% 57.5% 41.9%
21 2016 49/64 5.5 1.9 64.4% 70.5% 52.7% 60.1% 52.6% 64.1% 43.8% 2012 33/35 2.2 2.4 60.0% 62.3% 44.3% 46.0% 48.7% 54.8% 40.5%
22 2017 27/27 4.5 2.9 62.7% 69.2% 49.3% 59.9% 47.8% 62.0% 43.9% 2013 14/20 2.7 2.5 66.6% 64.4% 51.1% 53.5% 45.6% 60.1% 42.5%
23 2018 42/44 5.3 1.6 64.0% 71.2% 47.8% 57.5% 45.0% 62.8% 44.2% 2014 24/28 3.0 2.8 57.1% 63.5% 46.2% 54.4% 38.9% 55.9% 39.8%
24 2019 40/40 6.9 2.5 62.0% 71.3% 47.2% 59.7% 46.2% 62.0% 43.9% 2015 37/42 2.8 3.1 63.8% 65.6% 52.4% 50.3% 53.0% 60.8% 40.6%
25 2020 13/13 4.8 0.9 67.7% 72.9% 51.8% 55.6% 48.6% 66.2% 44.1% 2016 26/28 2.0 3.4 58.7% 59.2% 43.1% 50.2% 52.7% 52.7% 43.8%
26 2021 26/26 4.6 2.4 63.7% 66.7% 43.0% 58.2% 39.9% 58.2% 41.3% 2017 4/4 3.8 3.8 60.4% 66.7% 48.5% 45.5% 48.2% 59.6% 45.1%
27 2022 48/49 4.4 3.1 63.3% 67.9% 48.2% 54.1% 44.3% 60.8% 43.7% 2018 34/34 3.2 3.9 55.6% 63.3% 48.9% 62.2% 37.8% 56.8% 41.5%
28 2023 43/45 3.9 1.9 67.5% 68.3% 48.3% 60.2% 48.0% 62.0% 44.4% 2019 39/40 3.5 4.3 55.9% 67.1% 48.4% 54.9% 46.8% 58.6% 40.7%
29 2024 36/37 3.8 2.7 69.4% 66.5% 46.5% 60.4% 46.5% 60.6% 44.9% 2020 14/14 2.1 3.4 56.8% 63.2% 46.7% 52.4% 53.1% 55.6% 44.0%
30 2025 42/52 4.4 3.8 65.8% 66.8% 46.6% 57.8% 44.0% 59.9% 45.5% 2021 19/19 3.4 3.6 55.4% 63.7% 43.6% 44.1% 34.2% 55.0% 39.2%
31 2026 45/45 4.2 3.5 64.3% 71.5% 47.4% 56.1% 48.8% 63.0% 45.1% — —/— — — — — — — — — —
35 — —/— — — — — — — — — — 2026 1/1 0.0 1.0 37.5% 100.0% 40.0% — — 62.5% 14.3%
Career — 543/591 5.0 2.5 63.7% 69.3% 48.5% 58.1% 46.7% 61.8% 43.7% — 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 Madison Keys 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
14 2009 1513 104.9 -0.92 -0.60 0.987 49.0% — — — 50.0% -0.75 — — — -0.15 — — — — — — — — — — — — — — — —
16 2011 1517 113.3 -3.13 -0.25 1.071 51.6% +19 — — 50.0% +0.25 0–2 0–1 — -0.02 2007 1489 100.3 -2.72 -1.27 0.816 46.1% — — — 33.3% -1.33 0–1 1–0 — -0.06
17 2012 1514 113.2 -0.48 -2.14 0.738 43.5% +13 — — 18.2% -2.09 1–0 0–1 — -0.51 2008 1470 102.5 -2.06 -1.94 0.805 44.4% — — — 20.0% -1.20 0–1 — — -0.18
18 2013 1726 137.3 +4.59 -0.90 1.100 51.9% -46 -118 -57 58.2% +0.62 4–5 (44%) 5–6 (45%) 99.0 +0.04 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 2014 1744 136.9 +5.12 +0.02 1.142 52.3% -64 -93 +79 56.9% +0.45 6–10 (38%) 7–8 (47%) 96.1 -0.67 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 2015 1811 145.8 +4.84 +0.40 1.147 52.7% -23 -103 +11 63.6% +1.03 7–8 (47%) 5–5 (50%) 96.8 +0.70 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 2016 1943 152.0 +7.53 +1.31 1.219 53.7% -32 -117 -34 65.8% +1.11 17–6 (74%) 14–10 (58%) 107.1 -0.49 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 2017 1903 141.2 +3.97 +1.46 1.155 52.9% +43 -160 — 62.5% +0.75 4–6 (40%) 4–2 (67%) 97.5 +0.26 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 2018 1908 147.8 +5.83 +1.52 1.190 53.3% +17 -74 -12 68.1% +1.16 5–6 (45%) 7–4 (64%) 100.2 +1.54 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 2019 1913 148.9 +4.30 +0.69 1.158 52.9% +7 -4 — 66.3% +1.05 7–7 (50%) 8–5 (62%) 99.5 +0.99 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 2020 1869 136.6 +5.26 +1.22 1.305 54.4% +23 — — 65.4% +1.46 1–1 1–1 — +0.59 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 2021 1733 127.6 +1.29 -0.81 0.988 49.7% +11 +120 +234 43.6% -0.07 3–2 (60%) 0–5 (0%) 97.1 +1.25 2017 1571 105.5 +0.03 -1.29 1.118 51.8% — — -87 50.0% +0.60 1–1 0–2 — +0.25
27 2022 1866 154.5 +3.52 +1.76 1.116 52.1% +14 -43 — 61.1% +0.58 8–9 (47%) 11–3 (79%) 100.5 -1.43 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 2023 1908 154.0 +4.44 +2.18 1.168 53.1% -24 -103 +181 65.3% +1.28 5–6 (45%) 5–5 (50%) 98.3 +0.85 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 2024 1945 153.9 +3.89 +2.77 1.137 52.5% -67 +54 +149 67.1% +1.18 5–3 (63%) 9–3 (75%) 105.9 +0.01 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 2025 1964 160.3 +2.87 +2.39 1.133 52.4% +63 +39 +107 63.5% +0.80 16–6 (73%) 10–7 (59%) 107.8 -0.52 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 2026 1982 152.9 +5.10 +2.77 1.218 53.6% -16 +39 +175 65.7% +1.21 8–8 (50%) 6–7 (46%) 93.5 +1.19 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 — 2135 155.9 +4.47 +1.22 1.145 52.6% -6 -39 +96 62.4% +0.87 97–85 (53%) 92–73 (56%) 101.0 +0.62 — 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.