H2H data updated: 2026-09-12 00:00 UTC

Danielle Collins vs Simona Halep H2H: 2-1

Danielle Collins holds a 2–1 lead over Simona Halep in their WTA head-to-head. Across 3 main-draw meetings, they are tied 1–1 on hard courts, while Danielle Collins leads 1–0 on clay. Most recently, Danielle Collins won the 2022 Italian Open second round 7-6(1) 6-3.

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Danielle Collins
United States Age 32 Right-Handed 178 cm / 5'10"
H2H
2 – 1
3 main-draw meetings
Simona Halep
ROU Age 34 Right-Handed 168 cm / 5'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Danielle Collins #9 7-6(1) 6-3 Simona Halep #21 Match data May 12, 2022* R32 Italian Open WTA 1000 Clay
Danielle Collins #28 2-6 6-4 6-4 Simona Halep #13 Match data Aug 12, 2021* R32 Canadian Open WTA 1000 Hard
Simona Halep #2 6-7(2) 6-1 6-2 Danielle Collins Match data Aug 27, 2014* R128 US Open Grand Slam 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
Danielle Collins #343 #7 3,702 2,073 174 118 59.6% 0 1 0 2 1 4
Simona Halep #873 #1 8,290 2,120 449 201 69.1% 2 9 1 3 9 24

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 Danielle Collins Simona Halep
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 — — — — — — — 2010 7–9 43.8% #84 1,552 0 0
19 — — — — — — — 2011 16–22 42.1% #47 1,591 0 0
20 2014 0–1 0.0% #915 1,498 0 0 2012 23–24 48.9% #47 1,691 0 0
21 — — — — — — — 2013 50–17 74.6% #11 2,003 0 6
22 2016 0–1 0.0% #259 1,492 0 0 2014 46–18 71.9% #3 1,995 0 8
23 2017 0–1 0.0% #177 1,484 0 0 2015 49–16 75.4% #2 1,934 0 11
24 2018 18–17 51.4% #36 1,659 0 0 2016 43–16 72.9% #4 1,980 0 14
25 2019 18–18 50.0% #29 1,717 0 0 2017 45–18 71.4% #1 1,988 0 15
26 2020 10–6 62.5% #45 1,812 0 0 2018 45–12 78.9% #1 2,013 1 18
27 2021 37–15 71.2% #29 1,891 0 2 2019 39–17 69.6% #4 1,942 2 19
28 2022 20–11 64.5% #14 1,898 0 2 2020 23–3 88.5% #2 2,060 2 22
29 2023 18–18 50.0% #52 1,854 0 2 2021 24–13 64.9% #20 2,002 2 22
30 2024 38–16 70.4% #11 1,950 0 4 2022 39–13 75.0% #10 2,030 2 24
31 2025 15–14 51.7% #64 1,859 0 4 — — — — — — —
32 — — — — — — — 2024 0–2 0.0% #873 1,953 2 24
33 — — — — — — — 2025 0–1 0.0% — 1,926 2 24

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 Danielle Collins Simona Halep
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 %
18 — — — — — — — — — — — — — — — — — 2010 0 3 3 0.0% 7 6 13 53.8% — — — — — — — —
19 — — — — — — — — — — — — — — — — — 2011 10 12 22 45.5% 5 8 13 38.5% 1 2 3 33.3% — — — —
20 2014 0 1 1 0.0% — — — — — — — — — — — — 2012 14 14 28 50.0% 9 6 15 60.0% 0 3 3 0.0% 0 1 1 0.0%
21 — — — — — — — — — — — — — — — — — 2013 28 10 38 73.7% 16 5 21 76.2% 6 1 7 85.7% 0 1 1 0.0%
22 2016 0 1 1 0.0% — — — — — — — — — — — — 2014 23 11 34 67.6% 17 4 21 81.0% 6 2 8 75.0% 0 1 1 0.0%
23 2017 0 1 1 0.0% — — — — — — — — — — — — 2015 41 10 51 80.4% 6 4 10 60.0% 2 2 4 50.0% — — — —
24 2018 14 10 24 58.3% 2 4 6 33.3% 2 3 5 40.0% — — — — 2016 25 12 37 67.6% 14 3 17 82.4% 4 1 5 80.0% — — — —
25 2019 10 11 21 47.6% 6 5 11 54.5% 2 2 4 50.0% — — — — 2017 21 13 34 61.8% 18 3 21 85.7% 6 2 8 75.0% — — — —
26 2020 6 5 11 54.5% 4 1 5 80.0% — — — — — — — — 2018 28 8 36 77.8% 15 3 18 83.3% 2 1 3 66.7% — — — —
27 2021 25 11 36 69.4% 11 3 14 78.6% 1 1 2 50.0% — — — — 2019 21 13 34 61.8% 9 3 12 75.0% 9 1 10 90.0% — — — —
28 2022 17 6 23 73.9% 3 4 7 42.9% 0 1 1 0.0% — — — — 2020 10 2 12 83.3% 13 1 14 92.9% — — — — — — — —
29 2023 17 15 32 53.1% 0 2 2 0.0% 1 1 2 50.0% — — — — 2021 20 10 30 66.7% 4 3 7 57.1% — — — — — — — —
30 2024 16 10 26 61.5% 19 5 24 79.2% 3 1 4 75.0% — — — — 2022 23 7 30 76.7% 5 3 8 62.5% 11 3 14 78.6% — — — —
31 2025 6 8 14 42.9% 7 4 11 63.6% 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — — 2024 0 2 2 0.0% — — — — — — — — — — — —
33 — — — — — — — — — — — — — — — — — 2025 0 1 1 0.0% — — — — — — — — — — — —
Career — 111 79 190 58.4% 52 28 80 65.0% 11 11 22 50.0% — — — — — 264 128 392 67.3% 138 52 190 72.6% 47 18 65 72.3% 0 3 3 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 279/293 of Danielle Collins's and 575/649 of Simona Halep'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 Danielle Collins Simona Halep
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%
18 — —/— — — — — — — — — — 2010 14/16 2.1 3.6 61.8% 57.8% 51.1% 56.0% 57.5% 55.3% 46.1%
19 — —/— — — — — — — — — — 2011 35/38 1.5 4.1 62.3% 60.2% 43.3% 47.7% 49.8% 53.8% 43.5%
20 2014 1/1 2.0 0.0 59.0% 63.3% 52.9% 64.3% 20.0% 59.0% 32.3% 2012 42/47 1.1 3.2 66.2% 57.6% 45.9% 52.4% 51.2% 53.5% 44.3%
21 — —/— — — — — — — — — — 2013 57/67 1.9 3.0 66.6% 63.1% 48.5% 55.7% 59.5% 58.3% 49.4%
22 2016 1/1 0.0 3.0 55.3% 26.9% 42.9% 30.0% 50.0% 34.0% 36.6% 2014 53/64 2.4 3.2 60.5% 66.8% 50.7% 54.1% 56.9% 60.4% 48.8%
23 2017 1/1 1.0 1.0 56.3% 37.0% 33.3% 25.0% 33.3% 35.4% 40.0% 2015 48/65 2.2 3.5 66.3% 66.5% 51.9% 52.0% 53.6% 61.4% 47.1%
24 2018 30/35 2.4 3.2 58.0% 60.3% 46.2% 47.0% 47.7% 54.1% 41.8% 2016 51/59 1.8 2.0 66.5% 64.3% 51.4% 48.5% 54.4% 60.0% 51.1%
25 2019 35/36 3.2 3.1 59.4% 62.0% 47.0% 51.0% 52.5% 56.2% 41.8% 2017 58/63 1.5 2.3 68.2% 64.3% 48.2% 58.8% 50.3% 59.2% 48.0%
26 2020 16/16 3.5 3.5 58.9% 71.1% 48.3% 61.6% 48.3% 61.3% 43.8% 2018 55/57 2.0 2.6 65.6% 64.8% 48.3% 50.1% 54.4% 59.2% 50.2%
27 2021 52/52 3.6 3.9 54.6% 70.3% 48.5% 54.9% 54.3% 60.2% 46.1% 2019 52/56 1.6 2.5 69.2% 63.9% 48.6% 52.0% 53.8% 59.5% 49.3%
28 2022 31/31 3.8 6.1 54.1% 69.6% 48.1% 57.9% 52.5% 59.6% 45.1% 2020 26/26 2.1 2.9 69.2% 66.6% 45.2% 58.2% 56.0% 60.0% 51.0%
29 2023 36/36 3.6 4.6 59.0% 67.2% 47.2% 55.1% 48.1% 58.8% 42.2% 2021 34/37 2.5 2.6 65.5% 66.5% 49.0% 62.5% 51.7% 60.4% 47.9%
30 2024 50/54 3.8 4.8 56.5% 71.1% 47.4% 58.9% 52.9% 60.8% 45.4% 2022 48/52 2.7 3.3 61.9% 70.5% 49.9% 57.7% 56.3% 62.6% 50.0%
31 2025 26/30 4.2 5.2 57.9% 66.1% 49.5% 55.1% 51.5% 58.8% 41.9% — —/— — — — — — — — — —
32 — —/— — — — — — — — — — 2024 2/2 3.5 5.5 62.1% 64.2% 38.2% 63.6% 65.0% 54.4% 36.8%
Career — 279/293 3.5 4.3 57.0% 67.2% 47.7% 54.9% 51.3% 58.7% 43.7% — 575/650 2.0 2.9 65.5% 64.5% 48.7% 54.0% 54.3% 59.0% 48.4%

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 Danielle Collins Simona Halep
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
18 — — — — — — — — — — — — — — — — 2010 1552 129.6 0.00 +1.23 1.032 50.6% -45 +75 — 51.5% +0.21 0–3 (0%) 2–2 (50%) 97.4 -1.14
19 — — — — — — — — — — — — — — — — 2011 1591 119.2 -1.38 -0.51 0.942 48.7% -11 -33 +7 42.9% -0.57 4–6 (40%) 4–5 (44%) 99.6 -1.08
20 2014 1498 107.7 +4.54 +2.42 0.787 44.9% — — — 33.3% -2.67 0–1 1–0 — -0.24 2012 1692 138.7 -0.77 +1.06 0.953 49.0% -14 +1 -148 46.4% -0.43 6–3 (67%) 3–5 (38%) 103.4 -2.97
21 — — — — — — — — — — — — — — — — 2013 2004 156.1 +2.96 +5.04 1.187 53.8% -37 -132 -335 68.5% +1.57 16–4 (80%) 4–8 (33%) 108.5 -1.35
22 2016 1492 98.2 -2.62 -4.63 0.555 35.2% — — — 0.0% -4.50 — — — +0.13 2014 1995 160.2 +4.78 +5.18 1.233 54.4% -39 +30 -224 71.0% +1.79 12–6 (67%) 5–7 (42%) 99.5 -0.24
23 2017 1484 100.8 -2.48 +1.44 0.619 37.6% — — — 0.0% -5.00 — — — -0.14 2015 1935 159.6 +3.29 +5.15 1.221 54.1% +59 +10 -196 69.9% +1.42 15–6 (71%) 2–5 (29%) 100.7 +1.13
24 2018 1659 126.6 -1.48 -1.03 0.910 48.1% +14 -93 -38 46.8% -0.30 9–4 (69%) 2–2 (50%) 106.1 +0.97 2016 1980 160.5 +3.61 +7.88 1.277 55.4% -3 +44 -186 68.0% +1.42 9–5 (64%) 3–7 (30%) 97.1 -0.14
25 2019 1717 138.4 -0.18 -0.13 0.953 49.3% -18 -87 -80 51.3% -0.12 5–7 (42%) 6–4 (60%) 101.1 -1.21 2017 1988 158.5 +3.09 +5.20 1.176 53.5% -32 +153 -98 67.6% +1.18 13–8 (62%) 9–5 (64%) 102.4 -2.46
26 2020 1813 147.3 +3.14 +1.35 1.131 52.7% -60 -109 — 60.0% +0.85 4–4 (50%) 0–1 — -1.27 2018 2013 158.0 +2.58 +7.16 1.230 54.5% -33 +166 -139 71.9% +1.61 15–4 (79%) 4–4 (50%) 103.5 +0.15
27 2021 1891 152.7 +3.13 +2.70 1.158 53.3% +4 -43 — 71.3% +1.40 9–5 (64%) 7–3 (70%) 107.5 +0.72 2019 1942 158.9 +3.03 +6.58 1.216 54.2% -38 +198 +94 66.7% +1.28 13–8 (62%) 8–4 (67%) 101.3 -0.27
28 2022 1898 149.2 +2.47 +2.92 1.117 52.3% +79 -119 — 66.2% +0.81 3–5 (38%) 6–3 (67%) 99.8 +0.10 2020 2060 156.1 +3.23 +6.77 1.275 55.4% -69 +148 — 78.6% +1.82 6–0 (100%) 5–1 (83%) 107.1 -0.67
29 2023 1855 153.7 +2.52 +1.03 1.025 50.4% +53 — — 53.6% +0.20 5–9 (36%) 5–7 (42%) 91.8 -2.00 2021 2002 155.1 +3.53 +4.37 1.207 54.0% +7 +165 — 67.6% +1.45 6–2 (75%) 4–0 (100%) 105.0 -0.60
30 2024 1951 160.8 +3.69 +3.10 1.157 53.2% -11 +71 -239 68.1% +1.30 9–7 (56%) 7–1 (88%) 104.9 -1.22 2022 2031 152.9 +5.00 +6.61 1.339 56.0% +4 +66 +191 75.5% +1.85 7–5 (58%) 1–3 (25%) 95.1 +0.32
31 2025 1860 143.1 +1.81 -0.05 1.019 50.4% -7 +142 -159 50.7% +0.09 5–4 (56%) 4–3 (57%) 100.4 -0.97 — — — — — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — 2024 1953 108.2 0.00 +0.37 0.808 46.3% — — — 20.0% -1.20 0–1 — — -0.18
33 — — — — — — — — — — — — — — — — 2025 1926 95.9 — — — — — — — 0.0% -5.00 — — — 0.00
Career — 2074 154.6 +2.01 +1.46 1.057 51.3% +14 -3 -124 59.0% +0.55 49–46 (52%) 38–24 (61%) 107.7 -1.76 — 2120 160.6 +2.79 +5.10 1.182 53.6% -12 +61 -59 66.1% +1.21 122–61 (67%) 54–56 (49%) 102.1 -1.49

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.