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

Stefanie Voegele vs Kai-Chen Chang H2H: 1-0

Stefanie Voegele holds a 1–0 lead over Kai-Chen Chang in their WTA head-to-head. Across 1 main-draw meeting, Stefanie Voegele leads 1–0 on hard courts. Most recently, Stefanie Voegele won the 2016 Kaohsiung round of 32 1-6 6-3 6-4.

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Stefanie Voegele
Switzerland Age 36 Right-Handed 170 cm / 5'7"
H2H
1 – 0
1 main-draw meetings
Kai-Chen Chang
Chinese Taipei Age 35 Right-Handed 167 cm / 5'6"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Stefanie Voegele #117 1-6 6-3 6-4 Kai-Chen Chang #155 Match data Feb 11, 2016* R32 Kaohsiung International → modern equivalent WTA 250 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
Stefanie Voegele #1,075 #42 1,255 1,700 100 173 36.6% 0 0 0 0 0 0
Kai-Chen Chang #1,233 #82 808 1,646 32 59 35.2% 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 Stefanie Voegele Kai-Chen Chang
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 2008 0–2 0.0% #124 1,486 0 0 2009 5–5 50.0% #94 1,558 0 0
19 2009 10–9 52.6% #75 1,559 0 0 2010 9–15 37.5% #117 1,565 0 0
20 2010 9–22 29.0% #135 1,504 0 0 2011 1–8 11.1% #148 1,488 0 0
21 2011 1–1 50.0% #138 1,518 0 0 2012 9–11 45.0% #86 1,579 0 0
22 2012 2–7 22.2% #92 1,498 0 0 2013 1–4 20.0% #621 1,531 0 0
23 2013 21–20 51.2% #50 1,664 0 0 — — — — — — —
24 2014 14–23 37.8% #79 1,544 0 0 2015 1–2 33.3% #134 1,529 0 0
25 2015 7–17 29.2% #119 1,510 0 0 2016 3–4 42.9% #131 1,602 0 0
26 2016 10–14 41.7% #114 1,517 0 0 2017 2–9 18.2% #219 1,536 0 0
27 2017 5–4 55.6% #169 1,650 0 0 2018 1–1 50.0% #401 1,536 0 0
28 2018 9–17 34.6% #83 1,594 0 0 — — — — — — —
29 2019 6–15 28.6% #119 1,594 0 0 — — — — — — —
30 2020 1–5 16.7% #116 1,602 0 0 — — — — — — —
31 2021 4–12 25.0% #147 1,537 0 0 — — — — — — —
32 2022 1–5 16.7% #260 1,497 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 Stefanie Voegele Kai-Chen Chang
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 2008 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — 2009 5 5 10 50.0% — — — — — — — — — — — —
19 2009 6 6 12 50.0% 1 1 2 50.0% 3 2 5 60.0% — — — — 2010 7 9 16 43.8% 1 4 5 20.0% 1 2 3 33.3% — — — —
20 2010 8 13 21 38.1% 1 7 8 12.5% 0 2 2 0.0% — — — — 2011 1 5 6 16.7% 0 1 1 0.0% 0 2 2 0.0% — — — —
21 2011 — — — — 1 1 2 50.0% — — — — — — — — 2012 9 8 17 52.9% 0 1 1 0.0% 0 2 2 0.0% — — — —
22 2012 0 5 5 0.0% 2 2 4 50.0% — — — — — — — — 2013 1 4 5 20.0% — — — — — — — — — — — —
23 2013 13 13 26 50.0% 6 4 10 60.0% 1 2 3 33.3% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
24 2014 10 13 23 43.5% 4 7 11 36.4% 0 2 2 0.0% 0 1 1 0.0% 2015 1 2 3 33.3% — — — — — — — — — — — —
25 2015 6 10 16 37.5% 1 5 6 16.7% 0 2 2 0.0% — — — — 2016 3 4 7 42.9% — — — — — — — — — — — —
26 2016 5 7 12 41.7% 5 4 9 55.6% 0 3 3 0.0% — — — — 2017 2 7 9 22.2% 0 1 1 0.0% 0 1 1 0.0% — — — —
27 2017 5 4 9 55.6% — — — — — — — — — — — — 2018 1 1 2 50.0% — — — — — — — — — — — —
28 2018 6 10 16 37.5% 3 4 7 42.9% 0 3 3 0.0% — — — — — — — — — — — — — — — — — — — — —
29 2019 4 10 14 28.6% 2 4 6 33.3% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
30 2020 1 3 4 25.0% 0 2 2 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
31 2021 1 7 8 12.5% 3 5 8 37.5% — — — — — — — — — — — — — — — — — — — — — — — — —
32 2022 1 4 5 20.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 66 106 172 38.4% 29 48 77 37.7% 4 17 21 19.0% 1 2 3 33.3% — 30 45 75 40.0% 1 7 8 12.5% 1 7 8 12.5% — — — —

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 262/273 of Stefanie Voegele's and 84/91 of Kai-Chen Chang'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 Stefanie Voegele Kai-Chen Chang
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 2008 2/2 1.5 5.0 60.0% 55.1% 33.6% 16.3% 35.9% 46.4% 44.3% 2009 9/10 1.0 4.1 64.7% 59.0% 43.6% 58.2% 54.3% 53.4% 47.7%
19 2009 19/19 2.7 3.2 55.6% 66.8% 41.1% 47.3% 48.0% 55.2% 43.4% 2010 22/24 1.6 6.8 58.9% 58.6% 41.8% 54.0% 46.2% 51.7% 44.6%
20 2010 30/31 2.8 2.4 56.1% 60.6% 44.0% 42.9% 45.1% 53.4% 42.3% 2011 9/9 1.7 4.6 63.3% 61.6% 39.8% 49.4% 42.5% 53.4% 40.5%
21 2011 2/2 3.5 2.5 58.4% 56.9% 43.4% 50.0% 34.7% 51.7% 40.6% 2012 18/20 1.8 5.3 59.7% 62.2% 41.6% 43.4% 47.6% 54.1% 43.1%
22 2012 8/9 2.5 4.1 53.6% 59.9% 42.3% 48.9% 33.7% 51.9% 41.9% 2013 4/5 0.5 7.3 58.3% 63.2% 38.3% 61.1% 54.1% 52.8% 44.6%
23 2013 40/41 3.5 2.7 54.9% 66.3% 46.8% 48.5% 40.8% 57.6% 41.9% — —/— — — — — — — — — —
24 2014 36/37 4.4 1.9 56.4% 64.9% 42.8% 47.4% 49.5% 55.2% 42.3% 2015 2/3 2.0 3.0 62.9% 55.7% 48.8% 62.9% 52.6% 53.0% 47.3%
25 2015 17/24 3.1 2.3 60.4% 60.0% 45.8% 54.8% 47.5% 54.2% 37.1% 2016 7/7 1.6 7.1 57.2% 62.9% 41.9% 56.2% 48.6% 54.3% 47.2%
26 2016 24/24 2.6 1.8 56.8% 61.1% 42.5% 48.6% 43.8% 53.2% 42.7% 2017 11/11 2.0 7.5 57.6% 55.9% 34.9% 51.1% 38.8% 46.9% 39.9%
27 2017 9/9 3.9 3.0 55.5% 63.6% 42.5% 53.3% 44.0% 54.3% 42.0% 2018 2/2 1.0 5.5 63.9% 60.4% 38.2% 56.7% 60.0% 52.2% 50.9%
28 2018 26/26 3.3 1.9 56.8% 64.0% 47.0% 49.9% 36.3% 56.4% 38.5% — —/— — — — — — — — — —
29 2019 21/21 2.2 2.8 56.8% 62.3% 40.6% 44.6% 46.9% 53.0% 41.5% — —/— — — — — — — — — —
30 2020 6/6 2.0 3.0 53.4% 63.9% 39.8% 43.6% 31.9% 52.8% 40.3% — —/— — — — — — — — — —
31 2021 16/16 2.4 2.8 56.4% 59.0% 42.2% 53.8% 40.4% 51.7% 40.3% — —/— — — — — — — — — —
32 2022 6/6 0.8 3.7 51.6% 51.5% 31.0% 44.0% 48.0% 42.1% 40.6% — —/— — — — — — — — — —
Career — 262/273 3.0 2.5 56.2% 62.8% 43.4% 47.9% 43.5% 54.3% 41.4% — 84/91 1.6 6.0 60.0% 59.9% 40.8% 52.1% 47.1% 52.3% 44.0%

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 Stefanie Voegele Kai-Chen Chang
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 2008 1486 102.6 +0.81 +2.45 0.828 45.1% — — — 33.3% -1.67 0–2 1–0 — -0.30 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 2009 1559 110.5 -1.00 -0.45 0.970 48.9% -15 — +110 44.4% -0.20 7–0 (100%) 0–3 (0%) 107.0 +1.19 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
20 2010 1504 114.4 -2.38 -0.92 0.908 47.8% +41 -52 — 37.7% -0.88 1–8 (11%) 4–5 (44%) 92.7 +0.26 2011 1489 107.6 -1.48 -2.00 0.870 47.1% +59 — — 27.3% -1.55 0–4 (0%) 1–0 — +0.22
21 2011 1518 101.1 -0.37 -0.64 0.842 46.1% — — — 50.0% -1.00 — — — -0.21 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
22 2012 1498 112.2 -1.83 -0.15 0.870 46.8% -12 +15 — 31.8% -1.23 1–3 (25%) — — -0.33 2013 1532 98.7 -1.81 -0.42 0.946 49.0% +42 — — 25.0% -1.17 1–1 0–2 — +0.21
23 2013 1665 132.8 +0.93 -1.21 0.988 49.8% -31 -48 -123 46.9% -0.05 14–4 (78%) 5–8 (38%) 112.4 -0.72 — — — — — — — — — — — — — — — —
24 2014 1544 116.4 -1.15 -1.36 0.944 48.6% +18 +54 — 43.7% -0.69 3–12 (20%) 6–6 (50%) 91.8 +0.91 2015 1529 107.9 -0.55 -0.03 1.007 50.3% +36 — — 33.3% -0.33 — — — -0.01
25 2015 1511 109.4 -3.15 -3.22 0.811 46.1% +55 +2 — 30.2% -1.26 3–4 (43%) 2–4 (33%) 97.9 -0.11 2016 1603 113.2 -1.35 +0.69 1.031 50.7% +29 — — 41.2% +0.18 2–1 (67%) — — +0.28
26 2016 1517 103.6 -2.18 -1.45 0.912 48.0% +27 +22 -70 42.0% -0.72 3–3 (50%) 0–2 — +1.52 2017 1537 106.9 -5.20 -1.20 0.751 43.4% +36 — — 17.4% -2.39 1–0 1–1 — -0.21
27 2017 1651 123.2 -0.54 +0.06 0.918 48.3% +32 — — 50.0% -0.25 2–0 1–0 — +0.12 2018 1536 102.0 -0.12 -0.26 1.065 51.5% — — — 50.0% +0.50 — 0–1 — +0.27
28 2018 1594 119.0 +0.12 -3.10 0.884 47.4% +36 -67 -143 39.3% -0.89 3–6 (33%) 2–3 (40%) 97.2 -1.04 — — — — — — — — — — — — — — — —
29 2019 1594 116.8 -2.79 -1.89 0.882 47.2% +41 -76 — 34.8% -1.02 0–4 (0%) 1–4 (20%) 92.2 -0.08 — — — — — — — — — — — — — — — —
30 2020 1602 112.7 -0.73 -1.09 0.854 46.6% +29 — — 28.6% -1.57 0–2 1–1 — +0.01 — — — — — — — — — — — — — — — —
31 2021 1538 111.9 -2.04 -1.43 0.834 46.0% +15 -4 — 28.9% -1.40 3–3 (50%) 1–1 — +0.06 — — — — — — — — — — — — — — — —
32 2022 1498 106.8 -4.32 -2.01 0.701 41.9% +78 — — 15.4% -2.46 1–0 — — +0.47 — — — — — — — — — — — — — — — —
Career — 1700 120.1 -1.29 -1.46 0.904 47.8% +20 -14 -33 39.1% -0.79 41–51 (45%) 24–37 (39%) 96.3 +0.64 — 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

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.