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

Naomi Osaka vs Monica Niculescu H2H: 1-0

Naomi Osaka holds a 1–0 lead over Monica Niculescu in their WTA head-to-head. Across 1 main-draw meeting, Naomi Osaka leads 1–0 on grass. Most recently, Naomi Osaka won the 2018 Wimbledon first round 6-4 6-1.

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

Naomi Osaka
Japan Age 28 Right-Handed 180 cm / 5'11"
H2H
1 – 0
1 main-draw meetings
Monica Niculescu
Romania Age 38 Right-Handed 168 cm / 5'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Naomi Osaka #18 6-4 6-1 Monica Niculescu #61 Match data Jul 4, 2018* R128 Wimbledon Grand Slam Grass

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
Naomi Osaka #13 #1 7,985 2,179 251 136 64.9% 4 2 0 1 1 8
Monica Niculescu #958 #28 1,960 1,779 179 214 45.5% 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 Naomi Osaka Monica Niculescu
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 2014 2–2 50.0% #260 1,530 0 0 — — — — — — —
17 2015 0–2 0.0% #144 1,508 0 0 — — — — — — —
18 2016 20–13 60.6% #48 1,700 0 0 — — — — — — —
19 2017 19–22 46.3% #68 1,695 0 0 2007 0–1 0.0% #152 1,490 0 0
20 2018 40–20 66.7% #5 1,902 1 2 2008 8–15 34.8% #48 1,543 0 0
21 2019 40–13 75.5% #3 2,047 2 5 2009 10–22 31.2% #103 1,522 0 0
22 2020 16–3 84.2% #3 2,111 3 6 2010 6–9 40.0% #82 1,574 0 0
23 2021 20–8 71.4% #13 2,040 4 7 2011 21–15 58.3% #30 1,757 0 0
24 2022 15–11 57.7% #42 1,933 4 7 2012 15–23 39.5% #58 1,639 0 0
25 — — — — — — — 2013 22–21 51.2% #59 1,635 0 1
26 2024 21–17 55.3% #57 1,872 4 7 2014 22–19 53.7% #46 1,688 0 2
27 2025 31–14 68.9% #16 1,965 4 8 2015 20–21 48.8% #39 1,676 0 2
28 2026 27–11 71.1% #13 2,052 4 8 2016 26–19 57.8% #38 1,758 0 3
29 — — — — — — — 2017 12–19 38.7% #77 1,622 0 3
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
33 — — — — — — — 2021 0–3 0.0% #274 1,519 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 Naomi Osaka Monica Niculescu
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 2014 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
17 2015 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18 2016 18 11 29 62.1% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
19 2017 13 13 26 50.0% 2 5 7 28.6% 4 4 8 50.0% — — — — 2007 0 1 1 0.0% — — — — — — — — — — — —
20 2018 29 13 42 69.0% 5 4 9 55.6% 6 3 9 66.7% — — — — 2008 6 10 16 37.5% 1 3 4 25.0% 1 2 3 33.3% — — — —
21 2019 30 7 37 81.1% 9 4 13 69.2% 1 2 3 33.3% — — — — 2009 6 13 19 31.6% 3 6 9 33.3% 0 2 2 0.0% 1 1 2 50.0%
22 2020 16 3 19 84.2% — — — — — — — — — — — — 2010 4 7 11 36.4% 1 1 2 50.0% 1 1 2 50.0% — — — —
23 2021 18 5 23 78.3% 2 3 5 40.0% — — — — — — — — 2011 17 9 26 65.4% 3 4 7 42.9% 1 2 3 33.3% — — — —
24 2022 14 9 23 60.9% 1 2 3 33.3% — — — — — — — — 2012 12 15 27 44.4% 1 5 6 16.7% 1 2 3 33.3% 1 1 2 50.0%
25 — — — — — — — — — — — — — — — — — 2013 20 14 34 58.8% 2 4 6 33.3% 0 2 2 0.0% 0 1 1 0.0%
26 2024 13 9 22 59.1% 5 5 10 50.0% 3 3 6 50.0% — — — — 2014 18 14 32 56.3% 4 4 8 50.0% 0 1 1 0.0% — — — —
27 2025 25 8 33 75.8% 3 3 6 50.0% 3 3 6 50.0% — — — — 2015 10 14 24 41.7% 3 3 6 50.0% 7 4 11 63.6% — — — —
28 2026 12 6 18 66.7% 7 3 10 70.0% 8 2 10 80.0% — — — — 2016 23 13 36 63.9% 2 5 7 28.6% 1 1 2 50.0% — — — —
29 — — — — — — — — — — — — — — — — — 2017 11 13 24 45.8% 0 4 4 0.0% 1 2 3 33.3% — — — —
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% — — — — — — — —
33 — — — — — — — — — — — — — — — — — 2021 0 2 2 0.0% — — — — 0 1 1 0.0% — — — —
Career — 190 88 278 68.3% 36 31 67 53.7% 25 17 42 59.5% — — — — — 143 148 291 49.1% 20 40 60 33.3% 14 23 37 37.8% 2 3 5 40.0%

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 350/386 of Naomi Osaka's and 341/394 of Monica Niculescu'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 Naomi Osaka Monica Niculescu
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 2014 4/4 4.3 1.8 55.4% 65.3% 44.8% 33.6% 49.2% 55.5% 41.0% — —/— — — — — — — — — —
18 2016 33/33 4.8 2.5 55.2% 69.6% 48.3% 54.8% 51.5% 59.9% 43.8% — —/— — — — — — — — — —
19 2017 40/41 4.2 2.5 55.9% 67.2% 45.7% 45.6% 46.3% 57.5% 40.2% 2007 1/1 0.0 4.0 57.4% 45.2% 34.8% 25.0% 100.0% 40.7% 30.8%
20 2018 55/60 4.7 2.1 59.7% 71.1% 48.8% 55.8% 55.7% 61.9% 45.3% 2008 19/23 1.3 1.9 72.5% 54.5% 38.0% 41.9% 45.0% 49.9% 43.0%
21 2019 50/53 7.0 1.9 60.2% 73.1% 47.9% 56.3% 51.0% 63.1% 44.4% 2009 30/32 1.0 1.4 71.6% 55.9% 46.3% 44.0% 48.4% 52.8% 43.8%
22 2020 18/19 7.8 2.5 59.0% 76.0% 53.0% 64.2% 43.2% 66.5% 42.5% 2010 12/15 0.3 1.0 73.4% 53.0% 39.4% 47.7% 45.0% 49.3% 43.9%
23 2021 21/28 6.5 2.8 53.5% 76.2% 52.2% 59.4% 52.6% 64.9% 43.6% 2011 29/36 0.7 1.5 74.9% 55.3% 46.1% 44.2% 60.9% 52.3% 48.8%
24 2022 22/26 5.7 2.5 51.4% 76.9% 47.4% 61.9% 44.1% 62.7% 41.4% 2012 33/38 1.3 1.1 67.1% 58.0% 47.7% 51.8% 46.0% 54.3% 43.3%
25 — —/— — — — — — — — — — 2013 37/43 0.8 1.5 74.6% 59.2% 45.9% 47.0% 52.2% 55.3% 49.4%
26 2024 36/38 6.5 2.7 54.0% 75.1% 51.1% 56.3% 50.1% 64.0% 40.4% 2014 34/41 1.2 3.1 70.2% 60.8% 41.3% 50.8% 59.1% 55.0% 51.0%
27 2025 34/46 6.6 2.9 56.9% 74.7% 49.3% 52.5% 53.6% 63.5% 45.2% 2015 32/41 1.1 2.8 70.4% 60.4% 46.2% 47.8% 43.9% 55.9% 43.1%
28 2026 37/38 5.9 2.5 58.2% 72.9% 49.6% 52.0% 47.3% 63.2% 42.7% 2016 41/46 1.3 1.9 71.6% 57.0% 43.8% 43.2% 51.4% 53.4% 50.0%
29 — —/— — — — — — — — — — 2017 27/31 0.4 1.2 82.8% 52.1% 47.0% 51.7% 49.9% 51.2% 44.9%
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%
33 — —/— — — — — — — — — — 2021 3/3 0.3 1.3 74.9% 47.5% 49.1% 46.0% 50.0% 46.5% 36.7%
Career — 350/388 5.8 2.4 56.9% 72.6% 48.9% 54.7% 50.3% 62.3% 43.1% — 341/394 0.9 1.8 73.4% 56.9% 44.8% 46.4% 50.7% 53.3% 46.5%

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 Naomi Osaka Monica Niculescu
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 2014 1531 113.5 +0.17 +0.57 0.923 48.4% +17 — — 45.5% 0.00 2–1 (67%) 1–0 — -0.19 — — — — — — — — — — — — — — — —
17 2015 1509 102.0 — — — — — — — 20.0% -1.80 0–1 — — 0.00 — — — — — — — — — — — — — — — —
18 2016 1700 128.3 +3.18 +0.66 1.091 51.9% -10 -101 — 60.0% +0.65 4–5 (44%) 5–6 (45%) 101.0 +0.04 — — — — — — — — — — — — — — — —
19 2017 1696 132.1 +1.30 -2.12 0.947 48.9% +6 -84 -47 45.8% -0.18 5–4 (56%) 2–5 (29%) 97.8 -1.51 2007 1491 98.2 -0.35 +1.13 0.519 36.6% — — — 0.0% -4.50 — — — +0.05
20 2018 1902 160.7 +5.21 +2.94 1.190 53.8% +17 -236 -168 67.5% +1.35 4–3 (57%) 4–4 (50%) 99.8 -2.09 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%) 99.8 +0.05
21 2019 2047 154.9 +5.80 +1.63 1.202 53.6% +30 -229 -350 68.4% +1.22 17–2 (89%) 10–4 (71%) 116.1 +0.60 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
22 2020 2112 156.0 +6.66 +1.24 1.267 54.0% +19 — — 71.7% +1.61 9–1 (90%) 3–5 (38%) 103.1 -0.42 2010 1574 117.8 -2.83 +0.34 0.866 46.8% -1 — — 41.7% -0.81 3–3 (50%) 1–2 (33%) 101.0 -0.32
23 2021 2040 154.1 +6.00 +1.08 1.240 54.0% +82 -235 — 72.2% +1.43 3–3 (50%) 2–2 (50%) 95.5 -0.04 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%) 103.5 +0.37
24 2022 1934 147.8 +4.77 +0.02 1.112 52.0% +91 -156 — 57.4% +0.81 4–1 (80%) 0–2 — -0.62 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%) 96.9 +0.44
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%) 97.6 -0.53
26 2024 1873 146.8 +5.89 -1.17 1.122 52.2% +76 -98 -157 56.3% +0.71 3–5 (38%) 4–8 (33%) 94.1 -2.05 2014 1688 140.2 -1.17 +5.03 1.133 53.0% +7 -148 — 57.1% +1.03 8–12 (40%) 2–6 (25%) 93.9 -0.85
27 2025 1966 153.3 +4.79 +1.97 1.240 54.1% +59 -128 -253 65.4% +1.12 11–9 (55%) 10–6 (63%) 101.6 +0.92 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%) 105.1 -0.95
28 2026 2053 158.1 +5.15 +1.24 1.160 53.0% +1 -104 -111 66.7% +1.12 8–2 (80%) 7–3 (70%) 109.0 -0.80 2016 1759 135.4 -1.87 +5.53 1.073 51.7% +23 -229 — 56.0% +0.42 8–6 (57%) 1–4 (20%) 100.6 +0.22
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%) 100.1 +0.21
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%) 98.8 -0.23
32 — — — — — — — — — — — — — — — — 2020 1587 99.7 -1.05 +1.06 0.754 43.7% — — — 33.3% -2.34 0–2 — — -0.11
33 — — — — — — — — — — — — — — — — 2021 1519 98.6 -2.42 -0.40 0.685 41.9% — — — 0.0% -3.17 — — — -0.37
35 — — — — — — — — — — — — — — — — 2023 1531 101.7 — — — — — — — — — — — — —
Career — 2179 157.0 +4.72 +0.85 1.143 52.6% +35 -157 -155 62.7% +0.95 70–37 (65%) 48–45 (52%) 107.0 -1.65 — 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

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.