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

Kai-Chen Chang vs Kaia Kanepi H2H: 2-0

Kai-Chen Chang holds a 2–0 lead over Kaia Kanepi in their WTA head-to-head. Across 2 main-draw meetings, Kai-Chen Chang leads 2–0 on hard courts. Most recently, Kai-Chen Chang won the 2009 Pan Pacific Open first round 6-3 6-3.

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Kai-Chen Chang
Chinese Taipei Age 35 Right-Handed 167 cm / 5'6"
H2H
2 – 0
2 main-draw meetings
Kaia Kanepi
Estonia Age 41 Right-Handed 179 cm / 5'10"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Kai-Chen Chang #132 6-3 6-3 Kaia Kanepi #48 Match data Sep 29, 2009* R64 Pan Pacific Open Premier 5 → modern equivalent WTA 1000 Hard
Kai-Chen Chang #212 6-0 2-6 6-2 Kaia Kanepi #27 Match data Sep 2, 2009* 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
Kai-Chen Chang #1,233 #82 808 1,646 32 59 35.2% 0 0 0 0 0 0
Kaia Kanepi #1,322 #15 2,760 1,908 264 236 52.8% 0 0 0 2 2 4

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 Kai-Chen Chang Kaia Kanepi
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 2001 0–1 0.0% #200 1,496 0 0
17 — — — — — — — 2002 2–3 40.0% #285 1,498 0 0
18 2009 5–5 50.0% #94 1,558 0 0 — — — — — — —
19 2010 9–15 37.5% #117 1,565 0 0 2004 0–1 0.0% #229 1,484 0 0
20 2011 1–8 11.1% #148 1,488 0 0 2005 3–2 60.0% #98 1,527 0 0
21 2012 9–11 45.0% #86 1,579 0 0 2006 14–16 46.7% #78 1,606 0 0
22 2013 1–4 20.0% #621 1,531 0 0 2007 13–17 43.3% #75 1,581 0 0
23 — — — — — — — 2008 30–21 58.8% #27 1,761 0 0
24 2015 1–2 33.3% #134 1,529 0 0 2009 15–21 41.7% #58 1,603 0 0
25 2016 3–4 42.9% #131 1,602 0 0 2010 29–17 63.0% #22 1,842 0 1
26 2017 2–9 18.2% #219 1,536 0 0 2011 19–17 52.8% #34 1,798 0 1
27 2018 1–1 50.0% #401 1,536 0 0 2012 25–9 73.5% #19 1,861 0 3
28 — — — — — — — 2013 21–10 67.7% #30 1,838 0 4
29 — — — — — — — 2014 17–19 47.2% #51 1,719 0 4
30 — — — — — — — 2015 8–12 40.0% #122 1,659 0 4
31 — — — — — — — 2016 0–1 0.0% #376 1,663 0 4
32 — — — — — — — 2017 4–2 66.7% #100 1,731 0 4
33 — — — — — — — 2018 12–12 50.0% #61 1,776 0 4
34 — — — — — — — 2019 9–9 50.0% #101 1,761 0 4
35 — — — — — — — 2020 2–3 40.0% #93 1,729 0 4
36 — — — — — — — 2021 11–12 47.8% #73 1,699 0 4
37 — — — — — — — 2022 24–16 60.0% #32 1,802 0 4
38 — — — — — — — 2023 6–15 28.6% #168 1,627 0 4

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 Kai-Chen Chang Kaia Kanepi
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 — — — — — — — — — — — — — — — — — 2001 — — — — 0 1 1 0.0% — — — — — — — —
17 — — — — — — — — — — — — — — — — — 2002 — — — — 2 3 5 40.0% — — — — — — — —
18 2009 5 5 10 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
19 2010 7 9 16 43.8% 1 4 5 20.0% 1 2 3 33.3% — — — — 2004 0 1 1 0.0% — — — — — — — — — — — —
20 2011 1 5 6 16.7% 0 1 1 0.0% 0 2 2 0.0% — — — — 2005 3 2 5 60.0% — — — — — — — — — — — —
21 2012 9 8 17 52.9% 0 1 1 0.0% 0 2 2 0.0% — — — — 2006 8 8 16 50.0% 6 7 13 46.2% 0 1 1 0.0% — — — —
22 2013 1 4 5 20.0% — — — — — — — — — — — — 2007 4 6 10 40.0% 8 9 17 47.1% 1 2 3 33.3% — — — —
23 — — — — — — — — — — — — — — — — — 2008 19 12 31 61.3% 11 7 18 61.1% 0 2 2 0.0% — — — —
24 2015 1 2 3 33.3% — — — — — — — — — — — — 2009 9 13 22 40.9% 5 6 11 45.5% 0 1 1 0.0% 1 1 2 50.0%
25 2016 3 4 7 42.9% — — — — — — — — — — — — 2010 15 12 27 55.6% 7 3 10 70.0% 7 2 9 77.8% — — — —
26 2017 2 7 9 22.2% 0 1 1 0.0% 0 1 1 0.0% — — — — 2011 14 9 23 60.9% 2 4 6 33.3% 0 3 3 0.0% 3 1 4 75.0%
27 2018 1 1 2 50.0% — — — — — — — — — — — — 2012 13 6 19 68.4% 12 3 15 80.0% — — — — — — — —
28 — — — — — — — — — — — — — — — — — 2013 3 3 6 50.0% 14 5 19 73.7% 4 2 6 66.7% — — — —
29 — — — — — — — — — — — — — — — — — 2014 12 12 24 50.0% 4 5 9 44.4% 1 2 3 33.3% — — — —
30 — — — — — — — — — — — — — — — — — 2015 7 8 15 46.7% 1 3 4 25.0% 0 1 1 0.0% — — — —
31 — — — — — — — — — — — — — — — — — 2016 — — — — 0 1 1 0.0% — — — — — — — —
32 — — — — — — — — — — — — — — — — — 2017 4 2 6 66.7% — — — — — — — — — — — —
33 — — — — — — — — — — — — — — — — — 2018 9 6 15 60.0% 2 4 6 33.3% 1 2 3 33.3% — — — —
34 — — — — — — — — — — — — — — — — — 2019 3 6 9 33.3% 5 2 7 71.4% 1 1 2 50.0% — — — —
35 — — — — — — — — — — — — — — — — — 2020 1 2 3 33.3% 1 1 2 50.0% — — — — — — — —
36 — — — — — — — — — — — — — — — — — 2021 10 8 18 55.6% 1 3 4 25.0% 0 1 1 0.0% — — — —
37 — — — — — — — — — — — — — — — — — 2022 18 10 28 64.3% 5 3 8 62.5% 1 3 4 25.0% — — — —
38 — — — — — — — — — — — — — — — — — 2023 4 8 12 33.3% 2 6 8 25.0% 0 1 1 0.0% — — — —
Career — 30 45 75 40.0% 1 7 8 12.5% 1 7 8 12.5% — — — — — 156 134 290 53.8% 88 76 164 53.7% 16 24 40 40.0% 4 2 6 66.7%

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 84/91 of Kai-Chen Chang's and 427/488 of Kaia Kanepi'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 Kai-Chen Chang Kaia Kanepi
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 9/10 1.0 4.1 64.7% 59.0% 43.6% 58.2% 54.3% 53.4% 47.7% — —/— — — — — — — — — —
19 2010 22/24 1.6 6.8 58.9% 58.6% 41.8% 54.0% 46.2% 51.7% 44.6% — —/— — — — — — — — — —
20 2011 9/9 1.7 4.6 63.3% 61.6% 39.8% 49.4% 42.5% 53.4% 40.5% — —/— — — — — — — — — —
21 2012 18/20 1.8 5.3 59.7% 62.2% 41.6% 43.4% 47.6% 54.1% 43.1% 2006 5/30 3.2 3.6 50.1% 63.5% 51.7% 55.9% 43.1% 57.7% 43.7%
22 2013 4/5 0.5 7.3 58.3% 63.2% 38.3% 61.1% 54.1% 52.8% 44.6% 2007 21/30 3.0 7.0 57.0% 65.6% 38.7% 49.4% 52.0% 54.0% 42.6%
23 — —/— — — — — — — — — — 2008 37/51 2.4 5.1 58.3% 64.6% 45.9% 53.8% 50.1% 56.9% 45.8%
24 2015 2/3 2.0 3.0 62.9% 55.7% 48.8% 62.9% 52.6% 53.0% 47.3% 2009 35/36 3.1 5.3 52.3% 64.9% 42.8% 47.9% 52.3% 54.2% 43.8%
25 2016 7/7 1.6 7.1 57.2% 62.9% 41.9% 56.2% 48.6% 54.3% 47.2% 2010 42/46 3.7 5.1 59.4% 68.5% 44.9% 53.1% 44.3% 59.0% 47.2%
26 2017 11/11 2.0 7.5 57.6% 55.9% 34.9% 51.1% 38.8% 46.9% 39.9% 2011 35/36 4.4 4.3 57.1% 67.9% 44.3% 58.6% 44.1% 57.8% 44.4%
27 2018 2/2 1.0 5.5 63.9% 60.4% 38.2% 56.7% 60.0% 52.2% 50.9% 2012 34/34 4.0 4.7 57.0% 70.7% 48.0% 55.5% 51.0% 61.0% 47.8%
28 — —/— — — — — — — — — — 2013 30/31 4.1 4.5 55.7% 69.5% 47.3% 59.5% 45.7% 59.5% 43.9%
29 — —/— — — — — — — — — — 2014 36/36 4.1 5.5 55.7% 65.5% 43.2% 50.9% 45.3% 55.4% 43.2%
30 — —/— — — — — — — — — — 2015 18/20 3.5 4.7 55.8% 66.6% 45.7% 55.4% 59.7% 57.3% 41.0%
31 — —/— — — — — — — — — — 2016 1/1 1.0 4.0 65.3% 65.6% 11.8% 16.7% 100.0% 46.9% 38.7%
32 — —/— — — — — — — — — — 2017 6/6 2.0 2.7 71.5% 61.5% 44.5% 61.3% 43.3% 56.5% 42.1%
33 — —/— — — — — — — — — — 2018 22/24 2.6 4.5 59.6% 64.2% 47.7% 53.3% 45.4% 57.7% 44.9%
34 — —/— — — — — — — — — — 2019 18/18 3.5 4.7 58.4% 66.1% 42.5% 47.5% 39.9% 56.0% 44.6%
35 — —/— — — — — — — — — — 2020 5/5 3.6 3.2 58.7% 62.0% 47.8% 41.4% 49.8% 56.5% 45.3%
36 — —/— — — — — — — — — — 2021 22/23 3.7 4.6 51.7% 65.7% 46.8% 49.5% 54.1% 56.4% 41.5%
37 — —/— — — — — — — — — — 2022 39/40 4.6 3.7 55.9% 68.5% 49.0% 49.4% 45.1% 59.7% 43.1%
38 — —/— — — — — — — — — — 2023 21/21 2.5 3.1 57.0% 66.2% 46.9% 46.5% 42.8% 57.7% 40.7%
Career — 84/91 1.6 6.0 60.0% 59.9% 40.8% 52.1% 47.1% 52.3% 44.0% — 427/500 3.6 4.7 56.7% 66.8% 45.4% 52.4% 47.7% 57.5% 44.2%

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 Kai-Chen Chang Kaia Kanepi
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 — — — — — — — — — — — — — — — — 2001 1497 105.2 — — — — — — — 0.0% -2.50 — — — -0.28
17 — — — — — — — — — — — — — — — — 2002 1498 103.4 — — — — — +23 — 40.0% -0.90 — — — +0.03
18 2009 1558 119.4 -1.06 +1.66 1.024 50.6% +11 — — 50.0% +0.08 2–2 (50%) 2–2 (50%) 102.0 +0.20 — — — — — — — — — — — — — — — —
19 2010 1565 115.7 -2.81 +0.01 0.923 48.1% +27 -48 +36 41.1% -0.68 3–7 (30%) 1–0 — -0.25 2004 1485 98.6 — — — — — — — 0.0% -3.00 — 0–1 — +0.19
20 2011 1489 107.6 -1.48 -2.00 0.870 47.1% +59 — — 27.3% -1.55 0–4 (0%) 1–0 — +0.22 2005 1527 114.1 — — — — +28 — — 54.5% +0.18 1–0 2–1 (67%) — -0.08
21 2012 1579 117.3 -2.25 -0.69 0.939 48.7% +62 — — 44.2% -0.47 2–3 (40%) 4–2 (67%) 100.8 -0.04 2006 1607 113.9 +0.07 -1.13 1.033 50.5% +4 -62 — 47.9% -0.39 5–6 (45%) 3–2 (60%) 100.1 +0.19
22 2013 1532 98.7 -1.81 -0.42 0.946 49.0% +42 — — 25.0% -1.17 1–1 0–2 — +0.21 2007 1581 120.1 -1.50 -0.76 0.926 48.4% +17 +20 -16 46.5% -0.18 4–7 (36%) 3–4 (43%) 96.3 +0.10
23 — — — — — — — — — — — — — — — — 2008 1761 142.2 +1.74 +1.87 1.063 51.4% -2 -50 — 55.6% +0.40 13–9 (59%) 9–4 (69%) 107.7 +0.04
24 2015 1529 107.9 -0.55 -0.03 1.007 50.3% +36 — — 33.3% -0.33 — — — -0.01 2009 1604 134.2 -0.69 +1.03 0.958 49.2% +69 +58 — 45.0% -0.20 4–8 (33%) 0–7 (0%) 89.0 +0.79
25 2016 1603 113.2 -1.35 +0.69 1.031 50.7% +29 — — 41.2% +0.18 2–1 (67%) — — +0.28 2010 1842 146.9 +2.60 +3.18 1.151 53.0% -58 -100 -165 63.4% +0.93 3–8 (27%) 9–3 (75%) 101.4 -1.00
26 2017 1537 106.9 -5.20 -1.20 0.751 43.4% +36 — — 17.4% -2.39 1–0 1–1 — -0.21 2011 1799 142.9 +1.95 +1.23 1.051 51.0% +49 -115 -218 50.6% +0.20 8–7 (53%) 3–6 (33%) 97.9 +0.49
27 2018 1536 102.0 -0.12 -0.26 1.065 51.5% — — — 50.0% +0.50 — 0–1 — +0.27 2012 1862 140.4 +3.77 +2.86 1.226 54.3% -34 -10 — 67.5% +1.30 7–2 (78%) 3–2 (60%) 104.5 +0.29
28 — — — — — — — — — — — — — — — — 2013 1838 132.3 +2.40 +0.55 1.085 51.8% -37 +75 -164 62.9% +0.74 6–2 (75%) 7–2 (78%) 106.6 +0.19
29 — — — — — — — — — — — — — — — — 2014 1719 134.8 +0.25 +0.12 0.969 49.5% +38 +81 -56 48.9% -0.16 7–9 (44%) 9–4 (69%) 97.8 -0.89
30 — — — — — — — — — — — — — — — — 2015 1659 126.5 -0.20 +0.50 0.961 49.3% +51 +100 — 47.5% -0.15 1–3 (25%) 1–0 — -0.35
31 — — — — — — — — — — — — — — — — 2016 1663 113.1 +1.02 -0.64 0.730 42.3% — — — 0.0% -3.50 — — — -0.02
32 — — — — — — — — — — — — — — — — 2017 1732 125.4 -0.85 +0.35 0.969 49.3% +33 — — 57.1% -0.14 2–0 — — +0.38
33 — — — — — — — — — — — — — — — — 2018 1777 140.3 +1.23 +0.94 1.059 51.2% +67 -33 -156 54.7% +0.21 2–5 (29%) 1–3 (25%) 93.5 -0.34
34 — — — — — — — — — — — — — — — — 2019 1762 130.8 -0.84 +2.11 1.014 50.2% +14 +32 — 48.9% 0.00 5–4 (56%) 3–2 (60%) 102.0 -0.46
35 — — — — — — — — — — — — — — — — 2020 1729 113.7 +0.66 +1.49 1.042 51.0% +2 — — 41.7% +0.17 1–1 0–2 — -0.21
36 — — — — — — — — — — — — — — — — 2021 1700 135.8 +0.07 -0.08 0.950 49.1% +53 +14 — 44.0% -0.34 4–2 (67%) 2–5 (29%) 99.7 -1.55
37 — — — — — — — — — — — — — — — — 2022 1802 144.9 +2.41 +0.90 1.071 51.2% +48 +6 -236 54.7% +0.25 11–8 (58%) 6–7 (46%) 100.8 -0.84
38 — — — — — — — — — — — — — — — — 2023 1627 124.3 +1.07 -1.99 0.962 49.0% +69 +54 — 38.0% -0.72 1–7 (13%) 2–8 (20%) 87.2 -0.08
Career — 1646 117.6 -2.39 -0.31 0.921 48.2% +38 -48 +36 37.7% -0.76 11–18 (38%) 9–8 (53%) 98.4 +0.74 — 1909 143.0 +1.22 +1.05 1.039 50.8% +24 +4 -153 52.4% +0.17 85–88 (49%) 63–63 (50%) 96.4 -0.69

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.