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

Danielle Collins vs Vitalia Diatchenko H2H: 1-0

Danielle Collins holds a 1–0 lead over Vitalia Diatchenko in their WTA head-to-head. Across 1 main-draw meeting, Danielle Collins leads 1–0 on hard courts. Most recently, Danielle Collins won the 2020 Australian Open first round 6-1 3-6 6-4.

United States Age 32 Right-Handed 178 cm / 5'10"
H2H
1 0
1 main-draw meetings
Russia Age 36 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Danielle Collins #25 6-1 3-6 6-4 Vitalia Diatchenko #89 Match data Jan 22, 2020* R128 Australian 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
Vitalia Diatchenko #460 #71 791 1,626 13 47 21.7% 0 0 0 0 0 0

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 Vitalia Diatchenko
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 2009 2–5 28.6% #133 1,476 0 0
19 2010 0–1 0.0% #169 1,461 0 0
20 2014 0–1 0.0% #915 1,498 0 0 2011 1–5 16.7% #130 1,441 0 0
21 2012 1–1 50.0% #592 1,451 0 0
22 2016 0–1 0.0% #259 1,492 0 0
23 2017 0–1 0.0% #177 1,484 0 0 2014 2–1 66.7% #81 1,492 0 0
24 2018 18–17 51.4% #36 1,659 0 0 2015 2–8 20.0% #198 1,464 0 0
25 2019 18–18 50.0% #29 1,717 0 0 2016 0–3 0.0% #330 1,468 0 0
26 2020 10–6 62.5% #45 1,812 0 0 2017 0–1 0.0% #176 1,501 0 0
27 2021 37–15 71.2% #29 1,891 0 2 2018 2–3 40.0% #127 1,537 0 0
28 2022 20–11 64.5% #14 1,898 0 2 2019 0–4 0.0% #90 1,569 0 0
29 2023 18–18 50.0% #52 1,854 0 2 2020 0–5 0.0% #124 1,552 0 0
30 2024 38–16 70.4% #11 1,950 0 4 2021 1–6 14.3% #137 1,606 0 0
31 2025 15–14 51.7% #64 1,859 0 4 2022 2–3 40.0% #179 1,561 0 0
34 2025 0–1 0.0% #460 1,487 0 0

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 Vitalia Diatchenko
Yr HardClayGrass Yr HardClayGrass
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 2009 1 3 4 25.0% 1 2 3 33.3%
19 2010 0 1 1 0.0%
20 2014 0 1 1 0.0% 2011 1 4 5 20.0% 0 1 1 0.0%
21 2012 1 1 2 50.0%
22 2016 0 1 1 0.0%
23 2017 0 1 1 0.0% 2014 2 1 3 66.7%
24 2018 14 10 24 58.3% 2 4 6 33.3% 2 3 5 40.0% 2015 1 5 6 16.7% 1 2 3 33.3% 0 1 1 0.0%
25 2019 10 11 21 47.6% 6 5 11 54.5% 2 2 4 50.0% 2016 0 2 2 0.0% 0 1 1 0.0%
26 2020 6 5 11 54.5% 4 1 5 80.0% 2017 0 1 1 0.0%
27 2021 25 11 36 69.4% 11 3 14 78.6% 1 1 2 50.0% 2018 0 2 2 0.0% 2 1 3 66.7%
28 2022 17 6 23 73.9% 3 4 7 42.9% 0 1 1 0.0% 2019 0 1 1 0.0% 0 2 2 0.0% 0 1 1 0.0%
29 2023 17 15 32 53.1% 0 2 2 0.0% 1 1 2 50.0% 2020 0 4 4 0.0% 0 1 1 0.0%
30 2024 16 10 26 61.5% 19 5 24 79.2% 3 1 4 75.0% 2021 0 3 3 0.0% 1 1 2 50.0% 0 2 2 0.0%
31 2025 6 8 14 42.9% 7 4 11 63.6% 2 2 4 50.0% 2022 2 2 4 50.0% 0 1 1 0.0%
34 2025 0 1 1 0.0%
Career 111 79 190 58.4% 52 28 80 65.0% 11 11 22 50.0% 8 31 39 20.5% 3 9 12 25.0% 2 7 9 22.2%

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 60/60 of Vitalia Diatchenko'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 Vitalia Diatchenko
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 —/— 2009 7/7 0.7 7.9 54.5% 56.3% 32.0% 41.5% 46.6% 45.1% 42.2%
19 —/— 2010 1/1 2.0 5.0 57.4% 58.1% 39.1% 42.9% 0.0% 50.0% 29.4%
20 2014 1/1 2.0 0.0 59.0% 63.3% 52.9% 64.3% 20.0% 59.0% 32.3% 2011 6/6 0.8 6.8 56.7% 52.7% 44.0% 49.8% 33.8% 49.0% 44.3%
21 —/— 2012 2/2 3.5 3.0 56.9% 62.3% 52.3% 84.4% 50.0% 58.0% 35.0%
22 2016 1/1 0.0 3.0 55.3% 26.9% 42.9% 30.0% 50.0% 34.0% 36.6% —/—
23 2017 1/1 1.0 1.0 56.3% 37.0% 33.3% 25.0% 33.3% 35.4% 40.0% 2014 3/3 2.3 4.0 65.0% 65.2% 53.1% 28.1% 49.1% 61.1% 48.8%
24 2018 30/35 2.4 3.2 58.0% 60.3% 46.2% 47.0% 47.7% 54.1% 41.8% 2015 10/10 1.2 5.7 66.3% 57.2% 44.3% 48.7% 36.8% 51.6% 35.6%
25 2019 35/36 3.2 3.1 59.4% 62.0% 47.0% 51.0% 52.5% 56.2% 41.8% 2016 3/3 1.3 9.0 55.4% 50.7% 29.1% 51.3% 87.9% 40.9% 36.9%
26 2020 16/16 3.5 3.5 58.9% 71.1% 48.3% 61.6% 48.3% 61.3% 43.8% 2017 1/1 0.0 1.0 73.8% 47.9% 47.1% 44.4% 33.3% 47.7% 32.7%
27 2021 52/52 3.6 3.9 54.6% 70.3% 48.5% 54.9% 54.3% 60.2% 46.1% 2018 5/5 2.2 7.2 55.6% 64.1% 38.8% 51.1% 46.9% 53.3% 44.1%
28 2022 31/31 3.8 6.1 54.1% 69.6% 48.1% 57.9% 52.5% 59.6% 45.1% 2019 4/4 0.3 8.8 61.6% 60.7% 33.1% 44.6% 53.3% 50.0% 40.0%
29 2023 36/36 3.6 4.6 59.0% 67.2% 47.2% 55.1% 48.1% 58.8% 42.2% 2020 5/5 1.8 7.2 60.6% 54.4% 39.7% 51.2% 44.5% 48.8% 37.8%
30 2024 50/54 3.8 4.8 56.5% 71.1% 47.4% 58.9% 52.9% 60.8% 45.4% 2021 7/7 2.0 7.9 57.3% 56.8% 33.9% 42.7% 45.5% 47.0% 40.7%
31 2025 26/30 4.2 5.2 57.9% 66.1% 49.5% 55.1% 51.5% 58.8% 41.9% 2022 5/5 2.6 5.6 57.2% 61.3% 29.6% 29.2% 28.3% 47.5% 31.0%
34 —/— 2025 1/1 0.0 5.0 54.2% 56.4% 45.5% 44.4% 75.0% 51.4% 37.3%
Career 279/293 3.5 4.3 57.0% 67.2% 47.7% 54.9% 51.3% 58.7% 43.7% 60/60 1.5 6.7 59.3% 57.6% 38.7% 45.8% 44.1% 49.6% 39.2%

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 Vitalia Diatchenko
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 2009 1477 98.9 -4.57 -1.57 0.769 43.5% +20 +71 28.6% -2.07 2–0 +0.35
19 2010 1462 95.7 -2.17 -4.65 0.588 40.0% 0.0% -4.00 +0.14
20 2014 1498 107.7 +4.54 +2.42 0.787 44.9% 33.3% -2.67 0–1 1–0 -0.24 2011 1441 104.1 -3.48 -0.74 0.870 46.6% +28 31.3% -1.56 1–3 (25%) 1–1 -0.02
21 2012 1451 99.9 +0.24 -2.13 0.832 47.1% 50.0% -0.50 +0.11
22 2016 1492 98.2 -2.62 -4.63 0.555 35.2% 0.0% -4.50 +0.13
23 2017 1484 100.8 -2.48 +1.44 0.619 37.6% 0.0% -5.00 -0.14 2014 1492 111.8 +0.72 +0.81 1.256 54.6% +20 50.0% +0.17 1–1 +0.27
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 2015 1464 108.5 -3.33 -2.48 0.736 43.8% +21 +84 28.6% -1.48 1–2 (33%) 0–2 -0.06
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 2016 1469 99.7 -3.90 -0.31 0.624 39.2% 14.3% -3.29 0–1 -0.20
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 2017 1501 99.0 -1.68 +0.64 0.624 41.2% 0.0% -4.00 +0.06
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 2018 1537 114.3 -0.28 -0.26 0.944 48.9% +106 44.4% -0.22 1–0 1–2 (33%) +0.05
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 2019 1569 107.0 -0.03 +0.98 0.801 45.2% 27.3% -2.00 0–3 (0%) 2–0 -0.23
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 2020 1552 115.6 -2.98 +0.30 0.739 43.9% +14 16.7% -1.92 0–2 0–1 -0.41
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 2021 1606 98.5 -3.96 -1.79 0.767 43.9% +11 23.1% -2.08 0–1 2–2 (50%) +0.30
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 2022 1562 97.0 -4.02 -4.60 0.591 39.9% +43 40.0% -1.40 2–0 1–0 +0.27
33 2024 1546 95.2
34 2025 1488 96.3 -1.52 -1.26 0.767 45.0% 0.0% -2.00 0–1 +0.17
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 1627 108.4 -2.75 -1.33 0.778 44.6% +23 +78 +106 28.7% -1.68 8–13 (38%) 7–9 (44%) 99.4 +1.33

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.