Kai-Chen Chang
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Shuai Zhang | 2 | 1 | 3 | Jul 27, 2017 | H2H |
| Shuai Peng | 0 | 3 | 3 | Mar 2, 2017 | H2H |
| Iveta Benesova | 1 | 2 | 3 | Jul 30, 2012 | H2H |
| Tamarine Tanasugarn | 1 | 2 | 3 | Feb 10, 2012 | H2H |
| Qiang Wang | 0 | 2 | 2 | Oct 12, 2017 | H2H |
H2H data updated: 2026-09-13 00:00 UTC
Kai-Chen Chang vs Aleksandra Wozniak H2H: 0-1
Aleksandra Wozniak holds a 1–0 lead over Kai-Chen Chang in their WTA head-to-head. Across 1 main-draw meeting, Aleksandra Wozniak leads 1–0 on hard courts. Most recently, Aleksandra Wozniak won the 2009 Japan Women's Open second round 7-5 7-6(2).
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
0
–
1
1 main-draw meetings
H2H Match Log
| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Aleksandra Wozniak | 7-5 7-6(2) | Kai-Chen Chang | Match data | Oct 16, 2009* | R16 | Japan Women's Open | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kai-Chen Chang | #1,233 | #82 | 808 | 1,646 | 32 | 59 | 35.2% | 0 | 0 | 0 | 0 | 0 | 0 |
| Aleksandra Wozniak | #1,042 | #21 | 2,114 | 1,793 | 103 | 129 | 44.4% | 0 | 0 | 0 | 1 | 0 | 1 |
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 | Aleksandra Wozniak | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 2004 | 0–1 | 0.0% | #492 | 1,490 | 0 | 0 |
| 17 | — | — | — | — | — | — | — | 2005 | 0–3 | 0.0% | #168 | 1,458 | 0 | 0 |
| 18 | 2009 | 5–5 | 50.0% | #94 | 1,558 | 0 | 0 | 2006 | 3–5 | 37.5% | #93 | 1,467 | 0 | 0 |
| 19 | 2010 | 9–15 | 37.5% | #117 | 1,565 | 0 | 0 | 2007 | 8–16 | 33.3% | #136 | 1,477 | 0 | 0 |
| 20 | 2011 | 1–8 | 11.1% | #148 | 1,488 | 0 | 0 | 2008 | 19–15 | 55.9% | #34 | 1,677 | 0 | 1 |
| 21 | 2012 | 9–11 | 45.0% | #86 | 1,579 | 0 | 0 | 2009 | 30–25 | 54.5% | #34 | 1,767 | 0 | 1 |
| 22 | 2013 | 1–4 | 20.0% | #621 | 1,531 | 0 | 0 | 2010 | 11–18 | 37.9% | #125 | 1,602 | 0 | 1 |
| 23 | — | — | — | — | — | — | — | 2011 | 4–7 | 36.4% | #107 | 1,582 | 0 | 1 |
| 24 | 2015 | 1–2 | 33.3% | #134 | 1,529 | 0 | 0 | 2012 | 19–17 | 52.8% | #43 | 1,718 | 0 | 1 |
| 25 | 2016 | 3–4 | 42.9% | #131 | 1,602 | 0 | 0 | 2013 | 2–7 | 22.2% | #288 | 1,652 | 0 | 1 |
| 26 | 2017 | 2–9 | 18.2% | #219 | 1,536 | 0 | 0 | 2014 | 7–10 | 41.2% | #130 | 1,618 | 0 | 1 |
| 27 | 2018 | 1–1 | 50.0% | #401 | 1,536 | 0 | 0 | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | 2016 | 0–4 | 0.0% | #301 | 1,533 | 0 | 1 |
| 29 | — | — | — | — | — | — | — | 2017 | 0–1 | 0.0% | #300 | 1,506 | 0 | 1 |
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 | Aleksandra Wozniak | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Yr | Hard | Clay | Grass | |||||||||||||||||||
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2004 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2005 | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 18 | 2009 | 5 | 5 | 10 | 50.0% | — | — | — | — | — | — | — | — | 2006 | 3 | 4 | 7 | 42.9% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 19 | 2010 | 7 | 9 | 16 | 43.8% | 1 | 4 | 5 | 20.0% | 1 | 2 | 3 | 33.3% | 2007 | 4 | 12 | 16 | 25.0% | 4 | 2 | 6 | 66.7% | 0 | 2 | 2 | 0.0% |
| 20 | 2011 | 1 | 5 | 6 | 16.7% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 2008 | 16 | 10 | 26 | 61.5% | 2 | 4 | 6 | 33.3% | 1 | 1 | 2 | 50.0% |
| 21 | 2012 | 9 | 8 | 17 | 52.9% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 2009 | 16 | 15 | 31 | 51.6% | 10 | 7 | 17 | 58.8% | 4 | 3 | 7 | 57.1% |
| 22 | 2013 | 1 | 4 | 5 | 20.0% | — | — | — | — | — | — | — | — | 2010 | 3 | 9 | 12 | 25.0% | 6 | 6 | 12 | 50.0% | 2 | 3 | 5 | 40.0% |
| 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2011 | 3 | 5 | 8 | 37.5% | 1 | 1 | 2 | 50.0% | 0 | 1 | 1 | 0.0% |
| 24 | 2015 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | 2012 | 10 | 9 | 19 | 52.6% | 6 | 5 | 11 | 54.5% | 3 | 3 | 6 | 50.0% |
| 25 | 2016 | 3 | 4 | 7 | 42.9% | — | — | — | — | — | — | — | — | 2013 | 2 | 7 | 9 | 22.2% | — | — | — | — | — | — | — | — |
| 26 | 2017 | 2 | 7 | 9 | 22.2% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% | 2014 | 5 | 7 | 12 | 41.7% | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% |
| 27 | 2018 | 1 | 1 | 2 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2016 | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2017 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| Career | — | 30 | 45 | 75 | 40.0% | 1 | 7 | 8 | 12.5% | 1 | 7 | 8 | 12.5% | — | 62 | 85 | 147 | 42.2% | 29 | 29 | 58 | 50.0% | 12 | 15 | 27 | 44.4% |
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 193/228 of Aleksandra Wozniak'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 | Aleksandra Wozniak | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | 2006 | 1/8 | 4.0 | 5.0 | 64.0% | 56.3% | 33.3% | 40.0% | 25.0% | 48.0% | 42.7% |
| 19 | 2010 | 22/24 | 1.6 | 6.8 | 58.9% | 58.6% | 41.8% | 54.0% | 46.2% | 51.7% | 44.6% | 2007 | 13/24 | 2.1 | 4.5 | 53.3% | 60.8% | 39.2% | 52.6% | 41.4% | 50.7% | 40.7% |
| 20 | 2011 | 9/9 | 1.7 | 4.6 | 63.3% | 61.6% | 39.8% | 49.4% | 42.5% | 53.4% | 40.5% | 2008 | 28/34 | 2.3 | 4.0 | 61.3% | 62.9% | 43.8% | 55.7% | 49.5% | 55.7% | 43.1% |
| 21 | 2012 | 18/20 | 1.8 | 5.3 | 59.7% | 62.2% | 41.6% | 43.4% | 47.6% | 54.1% | 43.1% | 2009 | 52/55 | 2.5 | 3.8 | 59.7% | 63.7% | 48.1% | 51.3% | 55.3% | 57.4% | 46.2% |
| 22 | 2013 | 4/5 | 0.5 | 7.3 | 58.3% | 63.2% | 38.3% | 61.1% | 54.1% | 52.8% | 44.6% | 2010 | 28/29 | 2.0 | 3.5 | 65.3% | 59.1% | 40.1% | 52.1% | 44.8% | 52.6% | 41.5% |
| 23 | — | —/— | — | — | — | — | — | — | — | — | — | 2011 | 11/11 | 1.9 | 2.9 | 66.2% | 65.9% | 46.5% | 59.1% | 38.8% | 59.5% | 45.3% |
| 24 | 2015 | 2/3 | 2.0 | 3.0 | 62.9% | 55.7% | 48.8% | 62.9% | 52.6% | 53.0% | 47.3% | 2012 | 32/36 | 2.4 | 3.8 | 62.5% | 63.4% | 45.3% | 51.3% | 51.2% | 56.5% | 46.3% |
| 25 | 2016 | 7/7 | 1.6 | 7.1 | 57.2% | 62.9% | 41.9% | 56.2% | 48.6% | 54.3% | 47.2% | 2013 | 8/9 | 1.3 | 6.8 | 59.5% | 54.2% | 37.3% | 50.4% | 55.7% | 47.4% | 44.3% |
| 26 | 2017 | 11/11 | 2.0 | 7.5 | 57.6% | 55.9% | 34.9% | 51.1% | 38.8% | 46.9% | 39.9% | 2014 | 16/17 | 2.2 | 4.3 | 57.2% | 62.5% | 40.9% | 50.7% | 45.1% | 53.1% | 45.2% |
| 27 | 2018 | 2/2 | 1.0 | 5.5 | 63.9% | 60.4% | 38.2% | 56.7% | 60.0% | 52.2% | 50.9% | — | —/— | — | — | — | — | — | — | — | — | — |
| 28 | — | —/— | — | — | — | — | — | — | — | — | — | 2016 | 3/4 | 0.7 | 7.0 | 69.1% | 49.9% | 33.5% | 52.2% | 41.7% | 44.8% | 40.0% |
| 29 | — | —/— | — | — | — | — | — | — | — | — | — | 2017 | 1/1 | 1.0 | 5.0 | 59.7% | 53.5% | 44.8% | 40.0% | 60.0% | 50.0% | 34.5% |
| Career | — | 84/91 | 1.6 | 6.0 | 60.0% | 59.9% | 40.8% | 52.1% | 47.1% | 52.3% | 44.0% | — | 193/232 | 2.2 | 4.0 | 61.1% | 62.0% | 43.8% | 52.4% | 49.2% | 54.9% | 44.3% |
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 | Aleksandra Wozniak | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2004 | 1491 | 97.4 | — | — | — | — | — | — | — | 0.0% | -3.50 | — | — | — | +0.03 |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2005 | 1459 | 102.2 | — | — | — | — | — | — | — | 14.3% | -1.71 | 0–1 | 0–2 | — | 0.00 |
| 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 | 2006 | 1468 | 109.8 | -1.51 | -0.76 | 0.821 | 45.3% | +29 | — | — | 44.4% | +0.11 | 0–2 | — | — | +0.28 |
| 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 | 2007 | 1478 | 107.0 | -3.54 | -2.63 | 0.826 | 45.9% | -1 | +74 | — | 28.6% | -1.41 | 3–2 (60%) | 0–6 (0%) | 97.3 | +0.24 |
| 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 | 2008 | 1678 | 129.2 | +0.51 | -0.06 | 0.972 | 49.4% | -2 | -141 | — | 50.7% | -0.11 | 7–2 (78%) | 0–4 (0%) | 104.2 | +0.05 |
| 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 | 2009 | 1767 | 133.0 | +1.75 | +2.32 | 1.085 | 51.8% | -39 | -118 | -131 | 52.4% | +0.22 | 10–10 (50%) | 11–5 (69%) | 104.9 | -0.33 |
| 22 | 2013 | 1532 | 98.7 | -1.81 | -0.42 | 0.946 | 49.0% | +42 | — | — | 25.0% | -1.17 | 1–1 | 0–2 | — | +0.21 | 2010 | 1602 | 108.4 | -2.85 | -1.60 | 0.875 | 47.2% | -5 | +46 | +21 | 37.7% | -1.11 | 2–3 (40%) | 3–1 (75%) | 100.7 | +0.69 |
| 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2011 | 1582 | 124.8 | +1.18 | +1.26 | 1.118 | 52.3% | +3 | — | — | 41.7% | +0.29 | 0–2 | 1–2 (33%) | — | +0.06 |
| 24 | 2015 | 1529 | 107.9 | -0.55 | -0.03 | 1.007 | 50.3% | +36 | — | — | 33.3% | -0.33 | — | — | — | -0.01 | 2012 | 1719 | 135.4 | +0.10 | +1.88 | 1.064 | 51.3% | -42 | -27 | -81 | 54.8% | +0.39 | 6–8 (43%) | 8–4 (67%) | 104.6 | -0.14 |
| 25 | 2016 | 1603 | 113.2 | -1.35 | +0.69 | 1.031 | 50.7% | +29 | — | — | 41.2% | +0.18 | 2–1 (67%) | — | — | +0.28 | 2013 | 1652 | 121.8 | -3.37 | +0.90 | 0.842 | 46.2% | -33 | — | — | 25.0% | -1.45 | 1–1 | 1–3 (25%) | — | -0.66 |
| 26 | 2017 | 1537 | 106.9 | -5.20 | -1.20 | 0.751 | 43.4% | +36 | — | — | 17.4% | -2.39 | 1–0 | 1–1 | — | -0.21 | 2014 | 1619 | 118.6 | -2.20 | +0.51 | 0.965 | 48.9% | -3 | — | +19 | 40.5% | -0.69 | 5–3 (63%) | 3–1 (75%) | 103.9 | -0.26 |
| 27 | 2018 | 1536 | 102.0 | -0.12 | -0.26 | 1.065 | 51.5% | — | — | — | 50.0% | +0.50 | — | 0–1 | — | +0.27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2016 | 1533 | 94.9 | -2.12 | -2.18 | 0.725 | 42.5% | +3 | — | — | 11.1% | -2.78 | 0–1 | 0–1 | — | +0.39 |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2017 | 1507 | 92.2 | -3.22 | -0.52 | 0.690 | 43.1% | — | — | — | 33.3% | -2.00 | 0–1 | — | — | -0.07 |
| 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 | — | 1793 | 127.8 | -0.40 | +0.63 | 0.983 | 49.6% | -16 | -41 | -56 | 44.2% | -0.35 | 34–36 (49%) | 27–29 (48%) | 102.3 | +0.12 |
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.
Aleksandra Wozniak
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Caroline Wozniacki | 1 | 8 | 9 | Aug 11, 2012 | H2H |
| Jelena Jankovic | 1 | 4 | 5 | Aug 9, 2012 | H2H |
| Sloane Stephens | 1 | 3 | 4 | Aug 6, 2014 | H2H |
| Na Li | 1 | 3 | 4 | Mar 11, 2014 | H2H |
| Agnieszka Radwanska | 0 | 4 | 4 | Sep 26, 2013 | H2H |