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

Elise Mertens vs Su-Wei Hsieh H2H: 3-1

Elise Mertens holds a 3–1 lead over Su-Wei Hsieh in their WTA head-to-head. Across 4 main-draw meetings, Elise Mertens leads 2–0 on clay, while they are tied 1–1 on hard courts. Most recently, Elise Mertens won the 2020 Italian Open first round 6-3 6-1.

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Elise Mertens
Belgium Age 30 Right-Handed 179 cm / 5'10"
H2H
3 – 1
4 main-draw meetings
Su-Wei Hsieh
Chinese Taipei Age 40 Right-Handed 169 cm / 5'7"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Elise Mertens #20 6-3 6-1 Su-Wei Hsieh #62 Match data Sep 16, 2020* R64 Italian Open Premier 5 → modern equivalent WTA 1000 Clay
Elise Mertens #24 6-3 1-6 6-2 Su-Wei Hsieh #33 Match data Sep 20, 2019* R16 Pan Pacific Open Premier → modern equivalent WTA 500 Hard
Su-Wei Hsieh #30 6-2 4-0 (ret.) Elise Mertens #15 Match data Oct 13, 2018* QF Tianjin International → modern equivalent WTA 250 Hard
Elise Mertens #19 6-0 6-2 Su-Wei Hsieh #60 Match data May 5, 2018* SF Morocco Open International → modern equivalent WTA 250 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
Elise Mertens #20 #12 3,685 2,000 320 205 61.0% 0 0 0 2 8 10
Su-Wei Hsieh #909 #23 1,960 1,880 153 176 46.5% 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 Elise Mertens Su-Wei Hsieh
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 — — — — — — — 2001 5–2 71.4% #164 1,548 0 0
16 — — — — — — — 2002 0–1 0.0% #267 1,540 0 0
19 — — — — — — — 2005 0–3 0.0% #142 1,506 0 0
20 2016 3–3 50.0% #125 1,545 0 0 2006 0–4 0.0% #129 1,462 0 0
21 2017 30–21 58.8% #35 1,734 0 1 2007 1–7 12.5% #157 1,419 0 0
22 2018 44–20 68.8% #12 1,820 0 4 2008 5–8 38.5% #81 1,483 0 0
23 2019 35–25 58.3% #17 1,840 0 5 2009 1–2 33.3% #314 1,473 0 0
24 2020 32–13 71.1% #20 1,934 0 5 2010 0–2 0.0% #362 1,454 0 0
25 2021 33–19 63.5% #21 1,845 0 6 2011 1–1 50.0% #172 1,458 0 0
26 2022 28–21 57.1% #29 1,789 0 7 2012 22–14 61.1% #25 1,672 0 2
27 2023 26–21 55.3% #29 1,818 0 8 2013 13–25 34.2% #86 1,554 0 2
28 2024 27–25 51.9% #34 1,788 0 8 2014 6–12 33.3% #141 1,542 0 2
29 2025 36–20 64.3% #20 1,866 0 10 2015 6–5 54.5% #93 1,581 0 2
30 2026 26–17 60.5% #20 1,898 0 10 2016 12–12 50.0% #87 1,586 0 2
31 — — — — — — — 2017 8–15 34.8% #82 1,600 0 2
32 — — — — — — — 2018 32–17 65.3% #28 1,778 0 3
33 — — — — — — — 2019 31–24 56.4% #32 1,781 0 3
34 — — — — — — — 2020 1–7 12.5% #67 1,706 0 3
35 — — — — — — — 2021 9–14 39.1% #108 1,686 0 3
37 — — — — — — — 2023 0–1 0.0% #713 1,658 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 Elise Mertens Su-Wei Hsieh
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 %
15 — — — — — — — — — — — — — 2001 5 2 7 71.4% — — — — — — — —
16 — — — — — — — — — — — — — 2002 0 1 1 0.0% — — — — — — — —
19 — — — — — — — — — — — — — 2005 0 3 3 0.0% — — — — — — — —
20 2016 0 1 1 0.0% — — — — 3 2 5 60.0% 2006 0 2 2 0.0% 0 1 1 0.0% 0 1 1 0.0%
21 2017 18 11 29 62.1% 11 6 17 64.7% 1 4 5 20.0% 2007 1 5 6 16.7% 0 1 1 0.0% 0 1 1 0.0%
22 2018 26 14 40 65.0% 14 2 16 87.5% 4 4 8 50.0% 2008 4 4 8 50.0% 0 3 3 0.0% 1 1 2 50.0%
23 2019 24 15 39 61.5% 4 6 10 40.0% 7 4 11 63.6% 2009 1 2 3 33.3% — — — — — — — —
24 2020 23 9 32 71.9% 9 4 13 69.2% — — — — 2010 0 2 2 0.0% — — — — — — — —
25 2021 22 11 33 66.7% 9 5 14 64.3% 2 3 5 40.0% 2011 1 1 2 50.0% — — — — — — — —
26 2022 19 14 33 57.6% 5 3 8 62.5% 4 4 8 50.0% 2012 15 7 22 68.2% 2 3 5 40.0% 5 4 9 55.6%
27 2023 20 15 35 57.1% 5 4 9 55.6% 1 2 3 33.3% 2013 10 18 28 35.7% 1 4 5 20.0% 2 3 5 40.0%
28 2024 18 16 34 52.9% 6 5 11 54.5% 3 4 7 42.9% 2014 6 8 14 42.9% 0 2 2 0.0% 0 2 2 0.0%
29 2025 22 13 35 62.9% 6 5 11 54.5% 8 2 10 80.0% 2015 5 3 8 62.5% 0 1 1 0.0% 1 1 2 50.0%
30 2026 14 9 23 60.9% 5 4 9 55.6% 7 4 11 63.6% 2016 6 6 12 50.0% 5 4 9 55.6% 1 2 3 33.3%
31 — — — — — — — — — — — — — 2017 5 9 14 35.7% 2 2 4 50.0% 1 4 5 20.0%
32 — — — — — — — — — — — — — 2018 21 9 30 70.0% 6 5 11 54.5% 5 3 8 62.5%
33 — — — — — — — — — — — — — 2019 23 16 39 59.0% 4 5 9 44.4% 4 3 7 57.1%
34 — — — — — — — — — — — — — 2020 0 5 5 0.0% 1 2 3 33.3% — — — —
35 — — — — — — — — — — — — — 2021 9 9 18 50.0% 0 3 3 0.0% 0 2 2 0.0%
37 — — — — — — — — — — — — — 2023 — — — — 0 1 1 0.0% — — — —
Career — 206 128 334 61.7% 74 44 118 62.7% 40 33 73 54.8% — 112 112 224 50.0% 21 37 58 36.2% 20 27 47 42.6%

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 495/526 of Elise Mertens's and 285/321 of Su-Wei Hsieh'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 Elise Mertens Su-Wei Hsieh
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%
19 — —/— — — — — — — — — — 2005 1/3 0.0 1.0 68.9% 45.2% 28.6% 44.4% 0.0% 40.0% 31.9%
20 2016 6/6 2.8 4.7 55.3% 61.0% 47.1% 44.4% 67.4% 54.9% 48.4% 2006 2/4 0.0 1.5 70.8% 54.2% 53.1% 56.9% 10.7% 53.2% 36.5%
21 2017 49/51 2.8 3.7 61.8% 62.7% 44.6% 52.5% 52.3% 55.8% 46.7% 2007 3/8 0.3 3.0 58.2% 61.7% 45.8% 57.9% 26.5% 55.0% 34.9%
22 2018 60/64 3.3 4.0 61.0% 66.0% 46.8% 53.5% 47.2% 58.6% 47.0% 2008 11/13 1.1 3.7 53.2% 62.4% 43.3% 51.4% 38.7% 53.6% 42.4%
23 2019 57/60 2.8 4.3 61.2% 67.3% 48.5% 56.8% 46.6% 59.8% 46.2% 2009 3/3 0.3 3.7 58.9% 51.8% 46.8% 29.4% 52.6% 49.8% 48.1%
24 2020 45/45 3.2 3.5 61.0% 70.2% 48.1% 62.3% 52.8% 61.5% 47.3% 2010 2/2 0.5 4.0 60.9% 63.3% 38.7% 52.2% 46.3% 53.7% 43.8%
25 2021 50/52 3.8 5.9 58.5% 68.3% 43.7% 49.4% 51.2% 57.9% 46.8% 2011 2/2 0.0 2.5 62.8% 59.0% 52.3% 72.4% 57.5% 56.4% 54.5%
26 2022 47/49 3.3 5.7 57.9% 69.3% 44.9% 46.9% 52.3% 58.8% 46.7% 2012 29/36 0.6 2.5 64.5% 63.4% 48.2% 50.2% 45.6% 58.1% 47.7%
27 2023 47/47 3.8 6.6 54.0% 68.2% 43.7% 49.7% 48.3% 57.0% 46.4% 2013 33/38 0.7 3.0 62.9% 54.8% 42.6% 45.6% 49.0% 50.2% 43.3%
28 2024 52/52 3.5 4.8 54.9% 67.7% 47.2% 49.2% 43.5% 58.6% 43.5% 2014 14/18 0.9 2.6 61.9% 54.6% 40.0% 41.3% 41.6% 49.3% 42.3%
29 2025 42/57 4.7 4.2 55.7% 70.9% 46.7% 61.7% 45.9% 60.1% 44.3% 2015 7/11 2.1 2.9 61.0% 61.1% 53.7% 55.2% 49.1% 58.2% 41.7%
30 2026 40/43 4.0 4.4 59.7% 71.5% 43.3% 59.2% 45.6% 60.2% 44.6% 2016 24/24 1.1 2.6 58.5% 61.5% 47.9% 48.7% 43.8% 55.8% 43.3%
31 — —/— — — — — — — — — — 2017 23/23 1.1 2.7 63.4% 56.9% 39.7% 45.0% 49.8% 50.5% 44.3%
32 — —/— — — — — — — — — — 2018 46/49 0.8 3.1 63.3% 60.9% 47.5% 57.5% 54.0% 56.0% 47.2%
33 — —/— — — — — — — — — — 2019 53/55 0.7 3.2 64.4% 61.9% 46.6% 51.7% 47.6% 56.5% 44.9%
34 — —/— — — — — — — — — — 2020 8/8 0.1 3.0 61.2% 53.2% 42.9% 42.4% 53.9% 48.9% 40.7%
35 — —/— — — — — — — — — — 2021 23/23 0.7 3.1 64.0% 55.2% 43.8% 49.8% 41.6% 51.7% 43.2%
37 — —/— — — — — — — — — — 2023 1/1 1.0 2.0 64.9% 60.0% 44.4% 16.7% 45.5% 54.5% 45.5%
Career — 495/526 3.5 4.7 58.6% 67.9% 45.9% 53.8% 48.7% 58.8% 46.0% — 285/329 0.8 2.9 62.6% 59.3% 45.3% 50.0% 47.0% 54.1% 44.5%

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 Elise Mertens Su-Wei Hsieh
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
15 — — — — — — — — — — — — — — — — 2001 1548 108.6 — — — — +31 — — 63.2% +1.00 3–2 (60%) 0–2 — +1.12
16 — — — — — — — — — — — — — — — — 2002 1541 99.3 — — — — — — — 0.0% -5.00 — — — -0.23
19 — — — — — — — — — — — — — — — — 2005 1506 99.1 -0.87 -2.03 0.532 35.9% +18 — — 14.3% -2.43 0–1 0–1 — -0.18
20 2016 1546 114.6 +0.31 +2.24 1.071 51.6% — — +187 53.3% +0.73 1–2 (33%) 1–0 — -0.48 2006 1462 97.2 -0.43 -2.06 0.780 45.6% — — — 11.1% -2.11 0–1 — — +0.03
21 2017 1734 133.6 +0.24 +2.71 1.057 51.3% -42 -32 -72 54.4% +0.38 10–6 (63%) 6–8 (43%) 104.5 -1.32 2007 1419 94.3 -0.52 -2.42 0.776 45.0% +29 — — 22.2% -2.00 0–2 0–1 — -0.15
22 2018 1820 149.2 +2.19 +3.65 1.136 52.8% -27 +78 -134 64.7% +1.14 11–6 (65%) 10–9 (53%) 102.7 +1.85 2008 1483 115.6 -0.18 -0.54 0.915 47.9% +35 -31 — 40.0% -0.83 2–2 (50%) 1–1 — -0.39
23 2019 1841 151.4 +3.21 +3.08 1.150 52.7% +18 -36 -88 58.2% +0.82 9–12 (43%) 6–9 (40%) 95.6 -0.24 2009 1473 99.4 -1.34 -1.35 0.959 48.9% +30 — — 33.3% -0.83 — — — +0.39
24 2020 1934 157.8 +3.90 +3.73 1.228 54.2% +19 -60 — 67.6% +1.38 7–5 (58%) 2–3 (40%) 98.9 -0.09 2010 1454 101.1 -0.49 +0.07 0.946 48.5% — — — 20.0% -0.80 0–1 0–2 — -0.03
25 2021 1845 151.6 +1.62 +4.16 1.112 52.2% +60 +64 -104 60.3% +0.89 10–6 (63%) 8–6 (57%) 101.2 -0.07 2011 1459 105.4 -0.05 -0.94 1.250 55.5% — — — 60.0% +1.40 0–1 0–1 — +0.27
26 2022 1789 144.1 +1.46 +3.03 1.134 52.5% +31 +82 -28 55.7% +0.70 7–9 (44%) 4–5 (44%) 94.2 +1.98 2012 1672 133.4 +1.38 +2.74 1.138 52.7% -4 -182 -35 58.2% +0.62 7–6 (54%) 5–5 (50%) 104.4 +0.40
27 2023 1819 147.2 +0.37 +2.82 1.081 51.6% +29 +20 -94 56.6% +0.57 6–8 (43%) 7–3 (70%) 100.3 -0.17 2013 1554 116.0 -3.73 +0.15 0.871 46.8% +4 -81 +19 37.6% -1.02 3–6 (33%) 5–7 (42%) 97.2 -0.23
28 2024 1789 149.2 +1.83 +1.03 1.051 50.7% +1 +82 -81 54.0% +0.28 8–9 (47%) 1–5 (17%) 96.0 -1.04 2014 1542 107.7 -3.95 -1.33 0.834 45.9% +33 — — 35.7% -1.24 3–3 (50%) 2–4 (33%) 98.6 +0.26
29 2025 1867 155.7 +3.19 +1.74 1.111 52.0% -32 +16 +59 63.3% +0.97 7–10 (41%) 10–7 (59%) 98.4 -1.11 2015 1582 111.2 -0.41 -0.09 0.996 50.3% +31 — — 48.1% +0.04 4–1 (80%) 1–0 — +0.05
30 2026 1899 147.2 +2.55 +2.23 1.122 52.2% -42 -27 +78 59.2% +0.78 6–6 (50%) 3–2 (60%) 101.1 +1.70 2016 1586 119.0 -0.64 +0.61 0.979 49.4% -1 -70 -44 47.4% -0.11 6–3 (67%) 2–3 (40%) 103.6 -0.11
31 — — — — — — — — — — — — — — — — 2017 1601 109.3 -4.02 +0.80 0.895 47.4% -15 -59 -29 37.0% -0.98 4–6 (40%) 3–4 (43%) 98.3 +0.19
32 — — — — — — — — — — — — — — — — 2018 1778 132.6 -0.63 +4.07 1.073 51.5% -22 -182 -83 58.2% +0.56 12–6 (67%) 5–4 (56%) 108.9 -0.49
33 — — — — — — — — — — — — — — — — 2019 1781 146.5 +0.12 +2.75 1.033 50.7% +29 -185 -15 52.6% +0.24 16–9 (64%) 10–8 (56%) 107.5 -1.32
34 — — — — — — — — — — — — — — — — 2020 1707 118.1 -2.64 +0.13 0.796 44.9% +27 -121 — 17.6% -2.35 0–1 1–0 — -0.47
35 — — — — — — — — — — — — — — — — 2021 1687 126.8 -2.62 -0.02 0.895 47.4% +64 -177 — 43.1% -0.80 3–4 (43%) 4–0 (100%) — -1.53
37 — — — — — — — — — — — — — — — — 2023 1658 96.7 -0.52 -0.38 1.002 49.4% — — — 33.3% -0.33 0–1 0–1 — +0.20
38 — — — — — — — — — — — — — — — — 2024 1628 102.2 — — — — — — — — — — — — —
Career — 2000 153.9 +2.02 +2.84 1.116 52.2% +3 +18 -22 59.4% +0.80 82–79 (51%) 58–57 (50%) 98.9 +0.19 — 1881 128.6 -1.28 +1.43 0.970 49.3% +14 -131 -34 46.0% -0.30 63–56 (53%) 39–44 (47%) 103.9 -0.68

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.