H2H data updated: 2026-09-01 00:00 UTC

Monica Niculescu vs Caroline Wozniacki H2H: 1-9

Caroline Wozniacki holds a 9–1 lead over Monica Niculescu in their WTA head-to-head. Across 10 main-draw meetings, Caroline Wozniacki leads 8–1 on hard courts and 1–0 on clay. Most recently, Caroline Wozniacki won the 2019 Miami Open third round 6-4 7-6(4).

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Monica Niculescu
Romania Age 38 Right-Handed 168 cm / 5'6"
H2H
1 – 9
10 main draw meetings
Caroline Wozniacki
Denmark Age 36 Right-Handed 177 cm / 5'10"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Caroline Wozniacki #13 6-4 7-6(4) Monica Niculescu #138 Match data Mar 24, 2019* R32 Miami Open Premier Mandatory → modern equivalent WTA 1000 Hard
Caroline Wozniacki #1 7-5 6-1 Monica Niculescu #92 Match data Feb 16, 2018* R16 Qatar Open Premier 5 → modern equivalent WTA 1000 Hard
Caroline Wozniacki #11 7-5 6-7(3) 6-4 Monica Niculescu #51 Match data May 8, 2017 R64 Madrid Open Premier Mandatory → modern equivalent WTA 1000 Clay
Monica Niculescu #51 (w/o) Caroline Wozniacki #17 Match data Oct 21, 2016* QF Luxembourg International → modern equivalent WTA 250 Hard
Caroline Wozniacki #74 6-3 6-1 Monica Niculescu #58 Match data Sep 4, 2016* R32 US Open Grand Slam Hard
Caroline Wozniacki #9 6-3 6-2 Monica Niculescu #43 Match data Oct 18, 2013* R16 Luxembourg International → modern equivalent WTA 250 Hard
Caroline Wozniacki #8 6-3 6-1 Monica Niculescu #44 Match data Oct 3, 2013* R32 China Open Premier Mandatory → modern equivalent WTA 1000 Hard
Caroline Wozniacki #10 6-4 6-3 Monica Niculescu #43 Match data Aug 15, 2013* R32 Cincinnati Open Premier 5 → modern equivalent WTA 1000 Hard
Caroline Wozniacki #1 6-2 6-2 Monica Niculescu #32 Match data Jan 22, 2012* R32 Australian Open Grand Slam Hard
Caroline Wozniacki #22 6-3 6-3 Monica Niculescu #76 Match data Aug 22, 2008* R16 New Haven Tier II → modern equivalent WTA 500 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
Monica Niculescu #958 #28 1,960 1,779 179 214 45.5% 0 0 0 0 3 3
Caroline Wozniacki #289 #1 10,255 2,154 620 275 69.3% 1 6 1 11 11 30

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 Monica Niculescu Caroline Wozniacki
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
14 — — — — — — — 2005 0–2 0.0% — 1,482 0 0
15 — — — — — — — 2006 4–4 50.0% #231 1,527 0 0
16 — — — — — — — 2007 12–15 44.4% #60 1,555 0 0
17 — — — — — — — 2008 53–20 72.6% #12 1,913 0 3
18 — — — — — — — 2009 66–25 72.5% #4 1,898 0 6
19 2007 0–1 0.0% #152 1,490 0 0 2010 63–17 78.8% #1 2,105 0 12
20 2008 8–15 34.8% #48 1,543 0 0 2011 63–17 78.8% #1 1,988 0 18
21 2009 10–22 31.2% #103 1,522 0 0 2012 50–21 70.4% #10 1,975 0 20
22 2010 6–9 40.0% #82 1,574 0 0 2013 41–22 65.1% #10 1,906 0 21
23 2011 21–15 58.3% #30 1,757 0 0 2014 49–19 72.1% #8 2,014 0 22
24 2012 15–23 39.5% #58 1,639 0 0 2015 39–23 62.9% #17 1,817 0 23
25 2013 22–21 51.2% #59 1,635 0 1 2016 34–18 65.4% #19 1,912 0 25
26 2014 22–19 53.7% #46 1,688 0 2 2017 60–22 73.2% #3 2,004 0 27
27 2015 20–21 48.8% #39 1,676 0 2 2018 41–17 70.7% #3 1,947 1 30
28 2016 26–19 57.8% #38 1,758 0 3 2019 20–15 57.1% #38 1,845 1 30
29 2017 12–19 38.7% #77 1,622 0 3 2020 5–2 71.4% #36 1,852 1 30
30 2018 9–15 37.5% #99 1,591 0 3 — — — — — — —
31 2019 8–10 44.4% #118 1,638 0 3 — — — — — — —
32 2020 0–2 0.0% #144 1,586 0 3 2023 4–3 57.1% #249 1,862 1 30
33 2021 0–3 0.0% #274 1,519 0 3 2024 16–13 55.2% #70 1,845 1 30

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 Monica Niculescu Caroline Wozniacki
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 — — — — — — — — — — — — — — — — — 2005 0 2 2 0.0% — — — — — — — — — — — —
15 — — — — — — — — — — — — — — — — — 2006 4 4 8 50.0% — — — — — — — — — — — —
16 — — — — — — — — — — — — — — — — — 2007 8 10 18 44.4% 3 4 7 42.9% 1 1 2 50.0% — — — —
17 — — — — — — — — — — — — — — — — — 2008 42 13 55 76.4% 7 5 12 58.3% 4 2 6 66.7% — — — —
18 — — — — — — — — — — — — — — — — — 2009 35 18 53 66.0% 23 6 29 79.3% 8 1 9 88.9% — — — —
19 2007 0 1 1 0.0% — — — — — — — — — — — — 2010 45 9 54 83.3% 15 6 21 71.4% 3 2 5 60.0% — — — —
20 2008 6 10 16 37.5% 1 3 4 25.0% 1 2 3 33.3% — — — — 2011 40 11 51 78.4% 20 5 25 80.0% 3 1 4 75.0% — — — —
21 2009 6 13 19 31.6% 3 6 9 33.3% 0 2 2 0.0% 1 1 2 50.0% 2012 42 14 56 75.0% 5 4 9 55.6% 3 3 6 50.0% — — — —
22 2010 4 7 11 36.4% 1 1 2 50.0% 1 1 2 50.0% — — — — 2013 34 14 48 70.8% 3 6 9 33.3% 4 2 6 66.7% — — — —
23 2011 17 9 26 65.4% 3 4 7 42.9% 1 2 3 33.3% — — — — 2014 42 15 57 73.7% 1 2 3 33.3% 6 2 8 75.0% — — — —
24 2012 12 15 27 44.4% 1 5 6 16.7% 1 2 3 33.3% 1 1 2 50.0% 2015 26 17 43 60.5% 7 4 11 63.6% 6 2 8 75.0% — — — —
25 2013 20 14 34 58.8% 2 4 6 33.3% 0 2 2 0.0% 0 1 1 0.0% 2016 31 14 45 68.9% — — — — 3 4 7 42.9% — — — —
26 2014 18 14 32 56.3% 4 4 8 50.0% 0 1 1 0.0% — — — — 2017 41 14 55 74.5% 12 6 18 66.7% 7 2 9 77.8% — — — —
27 2015 10 14 24 41.7% 3 3 6 50.0% 7 4 11 63.6% — — — — 2018 26 12 38 68.4% 9 4 13 69.2% 6 1 7 85.7% — — — —
28 2016 23 13 36 63.9% 2 5 7 28.6% 1 1 2 50.0% — — — — 2019 12 9 21 57.1% 4 4 8 50.0% 4 2 6 66.7% — — — —
29 2017 11 13 24 45.8% 0 4 4 0.0% 1 2 3 33.3% — — — — 2020 5 2 7 71.4% — — — — — — — — — — — —
30 2018 9 14 23 39.1% — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
31 2019 7 8 15 46.7% — — — — 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — —
32 2020 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — 2023 4 3 7 57.1% — — — — — — — — — — — —
33 2021 0 2 2 0.0% — — — — 0 1 1 0.0% — — — — 2024 10 7 17 58.8% 2 3 5 40.0% 4 3 7 57.1% — — — —
Career — 143 148 291 49.1% 20 40 60 33.3% 14 23 37 37.8% 2 3 5 40.0% — 447 188 635 70.4% 111 59 170 65.3% 62 28 90 68.9% — — — —

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 341/394 of Monica Niculescu's and 788/893 of Caroline Wozniacki'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 Monica Niculescu Caroline Wozniacki
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%
15 — —/— — — — — — — — — — 2006 3/8 2.7 2.3 65.7% 58.9% 51.0% 43.9% 42.3% 56.6% 49.3%
16 — —/— — — — — — — — — — 2007 18/27 1.1 3.2 67.3% 56.6% 40.0% 54.4% 45.4% 51.4% 41.8%
17 — —/— — — — — — — — — — 2008 63/73 2.1 2.1 65.9% 65.6% 50.8% 58.8% 54.4% 60.4% 49.1%
18 — —/— — — — — — — — — — 2009 86/91 2.0 1.7 68.9% 64.2% 50.0% 52.2% 49.6% 59.7% 48.6%
19 2007 1/1 0.0 4.0 57.4% 45.2% 34.8% 25.0% 100.0% 40.7% 30.8% 2010 71/80 1.8 1.9 68.9% 65.3% 50.2% 59.5% 50.1% 60.6% 48.1%
20 2008 19/23 1.3 1.9 72.5% 54.5% 38.0% 41.9% 45.0% 49.9% 43.0% 2011 73/80 1.6 1.6 70.6% 65.6% 51.4% 58.1% 53.0% 61.5% 51.1%
21 2009 30/32 1.0 1.4 71.6% 55.9% 46.3% 44.0% 48.4% 52.8% 43.8% 2012 60/71 1.8 1.6 66.8% 63.6% 51.4% 59.5% 52.9% 59.4% 47.5%
22 2010 12/15 0.3 1.0 73.4% 53.0% 39.4% 47.7% 45.0% 49.3% 43.9% 2013 56/63 1.5 1.8 69.1% 62.5% 50.3% 59.3% 54.1% 58.9% 47.5%
23 2011 29/36 0.7 1.5 74.9% 55.3% 46.1% 44.2% 60.9% 52.3% 48.8% 2014 61/68 2.3 2.6 69.6% 66.0% 48.0% 58.7% 53.3% 60.4% 48.1%
24 2012 33/38 1.3 1.1 67.1% 58.0% 47.7% 51.8% 46.0% 54.3% 43.3% 2015 51/62 2.0 1.9 69.9% 65.3% 52.6% 50.4% 51.3% 61.5% 46.7%
25 2013 37/43 0.8 1.5 74.6% 59.2% 45.9% 47.0% 52.2% 55.3% 49.4% 2016 44/52 2.1 2.1 67.7% 66.5% 46.3% 57.0% 56.3% 59.9% 47.8%
26 2014 34/41 1.2 3.1 70.2% 60.8% 41.3% 50.8% 59.1% 55.0% 51.0% 2017 76/82 2.6 2.2 67.6% 65.7% 49.4% 56.8% 51.6% 60.2% 47.8%
27 2015 32/41 1.1 2.8 70.4% 60.4% 46.2% 47.8% 43.9% 55.9% 43.1% 2018 50/58 3.0 2.5 64.9% 68.0% 48.4% 52.5% 54.9% 61.2% 48.3%
28 2016 41/46 1.3 1.9 71.6% 57.0% 43.8% 43.2% 51.4% 53.4% 50.0% 2019 35/35 2.8 1.8 65.3% 63.2% 50.1% 51.6% 50.7% 58.5% 44.4%
29 2017 27/31 0.4 1.2 82.8% 52.1% 47.0% 51.7% 49.9% 51.2% 44.9% 2020 7/7 3.1 1.3 70.4% 68.7% 54.5% 63.1% 43.8% 64.8% 49.2%
30 2018 23/24 0.3 1.5 77.6% 55.6% 46.3% 46.4% 51.8% 53.0% 47.4% — —/— — — — — — — — — —
31 2019 18/18 0.4 1.5 79.1% 56.5% 45.6% 37.0% 46.4% 54.6% 46.2% — —/— — — — — — — — — —
32 2020 2/2 1.0 1.5 79.6% 49.7% 35.3% 49.4% 42.2% 46.7% 40.2% 2023 7/7 2.1 3.0 61.5% 67.5% 47.4% 57.7% 36.6% 59.6% 44.8%
33 2021 3/3 0.3 1.3 74.9% 47.5% 49.1% 46.0% 50.0% 46.5% 36.7% 2024 27/29 1.8 2.6 64.3% 65.3% 47.6% 55.5% 55.0% 59.1% 46.8%
Career — 341/394 0.9 1.8 73.4% 56.9% 44.8% 46.4% 50.7% 53.3% 46.5% — 788/895 2.1 2.0 67.9% 65.0% 49.7% 56.4% 52.2% 60.0% 47.9%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. 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 Monica Niculescu Caroline Wozniacki
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 — — — — — — — — — — — — — — — — 2005 1482 101.4 — — — — — — — 0.0% -3.75 — 0–1 — -0.25
15 — — — — — — — — — — — — — — — — 2006 1527 119.1 +0.53 +0.91 1.137 52.5% +17 — — 47.1% -0.12 1–0 — — -0.46
16 — — — — — — — — — — — — — — — — 2007 1556 117.2 -2.81 -1.82 0.860 46.7% +15 -35 — 46.0% -0.59 4–5 (44%) 7–1 (88%) — +0.40
17 — — — — — — — — — — — — — — — — 2008 1914 154.8 +4.79 +4.70 1.241 54.7% -5 -303 -228 69.9% +1.69 9–5 (64%) 6–8 (43%) — -0.96
18 — — — — — — — — — — — — — — — — 2009 1899 153.9 +3.97 +4.82 1.208 54.1% -27 -24 -64 69.4% +1.47 15–8 (65%) 11–7 (61%) — -0.77
19 2007 1491 98.2 -0.35 +1.13 0.519 36.6% — — — 0.0% -4.50 — — — +0.05 2010 2105 166.0 +4.94 +4.76 1.219 54.3% +27 -204 -284 72.4% +1.70 18–4 (82%) 8–2 (80%) — +1.46
20 2008 1543 120.1 -2.90 -0.19 0.859 46.3% +10 -13 +47 34.6% -1.12 4–6 (40%) 1–2 (33%) — +0.05 2011 1988 162.1 +5.76 +7.01 1.328 56.0% +52 -9 -153 74.7% +1.90 11–7 (61%) 10–5 (67%) — +1.97
21 2009 1523 112.7 -2.66 -0.26 0.928 48.0% +26 -22 — 34.7% -1.10 3–7 (30%) 2–1 (67%) — +0.79 2012 1976 156.2 +3.80 +4.12 1.171 53.6% +42 -42 -144 66.9% +1.29 15–9 (63%) 11–8 (58%) — +0.75
22 2010 1574 117.8 -2.83 +0.34 0.866 46.8% -1 — — 41.7% -0.81 3–3 (50%) 1–2 (33%) — -0.32 2013 1906 152.3 +3.39 +3.53 1.156 53.3% +82 -137 -61 61.0% +1.06 9–9 (50%) 6–9 (40%) — +3.21
23 2011 1758 133.3 -2.06 +3.84 1.021 50.5% -10 -238 -215 53.8% +0.41 7–3 (70%) 3–5 (38%) — +0.37 2014 2014 163.0 +4.24 +5.25 1.216 54.2% +24 -280 -133 64.9% +1.45 16–6 (73%) 5–10 (33%) — -0.30
24 2012 1640 125.0 -1.30 -0.32 0.949 48.8% +48 -164 -85 42.4% -0.47 3–8 (27%) 6–1 (86%) — +0.44 2015 1818 153.2 +3.21 +4.72 1.211 54.0% +6 -9 +74 62.6% +1.23 9–6 (60%) 8–7 (53%) — -0.90
25 2013 1635 132.6 -0.55 +4.14 1.104 52.3% +66 -181 — 52.1% +0.24 6–8 (43%) 4–2 (67%) — -0.53 2016 1912 146.8 +3.41 +3.91 1.191 53.8% +27 — -117 65.2% +1.25 8–7 (53%) 3–5 (38%) — -0.32
26 2014 1688 140.2 -1.17 +5.03 1.133 53.0% +7 -148 — 57.1% +1.03 8–12 (40%) 2–6 (25%) — -0.85 2017 2004 161.0 +3.93 +4.95 1.202 54.0% +52 -146 -103 68.5% +1.56 17–8 (68%) 5–6 (45%) — +0.13
27 2015 1677 131.5 -1.57 +1.81 0.978 49.6% -20 -106 -62 50.0% +0.03 10–10 (50%) 4–0 (100%) — -0.95 2018 1947 156.8 +4.39 +5.24 1.245 54.7% +6 -64 +24 67.7% +1.47 12–6 (67%) 6–7 (46%) — +0.11
28 2016 1759 135.4 -1.87 +5.53 1.073 51.7% +23 -229 — 56.0% +0.42 8–6 (57%) 1–4 (20%) — +0.22 2019 1845 144.8 +1.89 +0.99 1.069 51.3% +47 -6 +118 60.8% +0.70 3–7 (30%) 5–2 (71%) — +0.87
29 2017 1622 118.4 -3.66 +1.26 0.920 48.1% +24 -137 -27 40.9% -0.64 5–5 (50%) 3–2 (60%) — +0.21 2020 1853 131.5 +2.36 +2.51 1.397 56.9% +35 — — 70.6% +1.71 1–2 (33%) — — +0.18
30 2018 1591 133.1 -2.27 +2.61 1.010 50.2% +6 — — 39.6% -0.48 3–5 (38%) 1–2 (33%) — -0.38 — — — — — — — — — — — — — — — —
31 2019 1638 129.0 -1.03 +1.89 1.019 50.3% +11 — -43 46.2% -0.05 3–4 (43%) 2–5 (29%) — -0.23 — — — — — — — — — — — — — — — —
32 2020 1587 99.7 -1.05 +1.06 0.754 43.7% — — — 33.3% -2.34 0–2 — — -0.11 2023 1863 134.9 +2.02 +2.05 1.110 51.8% +58 — — 56.3% +0.56 1–1 1–0 — -0.17
33 2021 1519 98.6 -2.42 -0.40 0.685 41.9% — — — 0.0% -3.17 — — — -0.37 2024 1845 140.8 +1.93 +2.73 1.145 53.0% +44 -42 +224 58.1% +0.77 4–6 (40%) 2–1 (67%) — +0.15
35 2023 1531 101.7 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1780 134.0 -1.87 +2.44 0.996 49.9% +19 -140 -64 46.8% -0.13 63–79 (44%) 30–32 (48%) 97.9 -0.41 — 2154 160.9 +3.84 +4.42 1.199 53.9% +28 -90 -57 66.3% +1.33 153–96 (61%) 94–79 (54%) 104.3 +0.57

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.