H2H data updated: 2026-09-14 00:00 UTC

Ekaterina Bychkova vs Tiantian Sun H2H: 0-1

Tiantian Sun holds a 1–0 lead over Ekaterina Bychkova in their WTA head-to-head. Across 1 main-draw meeting, Tiantian Sun leads 1–0 on clay. Most recently, Tiantian Sun won the 2006 Roland Garros first round 6-2 7-5.

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Ekaterina Bychkova
RUS Age 41 Right-Handed 171 cm / 5'7"
H2H
0 – 1
1 main-draw meetings
Tiantian Sun
CHN Right-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Tiantian Sun #103 6-2 7-5 Ekaterina Bychkova #80 Match data May 30, 2006* R128 Roland Garros Grand Slam 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
Ekaterina Bychkova #814 #66 588 1,570 34 67 33.7% 0 0 0 0 0 0
Tiantian Sun #819 #77 395 1,649 27 54 33.3% 0 0 0 0 1 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.

Ekaterina Bychkova Tiantian Sun
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
2004 1–1 50.0% #155 1,504 0 0 2002 0–1 0.0% #231 1,493 0 0
2005 9–10 47.4% #70 1,545 0 0 2003 2–7 22.2% #129 1,451 0 0
2006 9–21 30.0% #76 1,483 0 0 2004 2–9 18.2% #126 1,429 0 0
2007 5–13 27.8% #111 1,464 0 0 2005 7–6 53.8% #105 1,520 0 0
2008 5–12 29.4% #117 1,443 0 0 2006 12–12 50.0% #81 1,628 0 1
2009 1–3 25.0% #121 1,431 0 0 2007 3–15 16.7% #230 1,505 0 1
2010 3–4 42.9% #181 1,479 0 0 2008 1–4 20.0% #281 1,493 0 1
2011 0–1 0.0% #171 1,477 0 0 — — — — — — —
2012 0–1 0.0% #208 1,463 0 0 — — — — — — —
2013 1–1 50.0% #159 1,484 0 0 — — — — — — —

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Ekaterina Bychkova Tiantian Sun
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 %
2004 1 1 2 50.0% — — — — — — — — — — — — 2002 0 1 1 0.0% — — — — — — — — — — — —
2005 7 8 15 46.7% 2 2 4 50.0% — — — — — — — — 2003 2 7 9 22.2% — — — — — — — — — — — —
2006 7 11 18 38.9% 0 8 8 0.0% 1 1 2 50.0% 1 1 2 50.0% 2004 0 6 6 0.0% 1 2 3 33.3% 1 1 2 50.0% — — — —
2007 3 6 9 33.3% 1 4 5 20.0% 0 2 2 0.0% 1 1 2 50.0% 2005 7 6 13 53.8% — — — — — — — — — — — —
2008 5 6 11 45.5% 0 5 5 0.0% 0 1 1 0.0% — — — — 2006 10 10 20 50.0% 1 1 2 50.0% 1 1 2 50.0% — — — —
2009 1 3 4 25.0% — — — — — — — — — — — — 2007 3 8 11 27.3% 0 5 5 0.0% 0 2 2 0.0% — — — —
2010 3 3 6 50.0% 0 1 1 0.0% — — — — — — — — 2008 0 3 3 0.0% 1 1 2 50.0% — — — — — — — —
2011 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
2012 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
2013 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 28 41 69 40.6% 3 20 23 13.0% 1 4 5 20.0% 2 2 4 50.0% Career 22 41 63 34.9% 3 9 12 25.0% 2 4 6 33.3% — — — —

Performance Progression by Career Season

Rows are aligned in career order because complete birth data is unavailable. Detailed serve and return statistics available for 58/99 of Ekaterina Bychkova's and 28/56 of Tiantian Sun'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.

Ekaterina Bychkova Tiantian Sun
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%
2005 1/19 5.0 2.0 67.3% 72.7% 37.5% 0.0% 54.5% 61.2% 54.7% 2003 1/9 1.0 4.0 59.4% 60.5% 30.8% 28.6% 28.6% 48.4% 40.0%
2006 16/30 3.9 2.8 50.8% 62.4% 43.3% 55.4% 42.8% 53.3% 41.1% 2006 9/24 1.1 1.2 67.2% 58.1% 44.5% 53.0% 49.3% 53.8% 37.5%
2007 15/18 4.2 3.7 52.0% 66.1% 41.6% 54.5% 45.8% 54.8% 39.2% 2007 14/18 1.6 2.1 65.0% 55.8% 43.0% 44.6% 35.3% 51.3% 40.4%
2008 12/17 5.1 3.1 50.3% 67.9% 38.0% 55.9% 59.4% 53.4% 37.7% 2008 4/5 1.5 3.0 65.6% 55.4% 41.8% 51.8% 30.6% 51.0% 36.8%
2009 3/4 6.3 4.7 42.0% 76.7% 49.6% 55.1% 36.1% 60.1% 35.9% — —/— — — — — — — — — —
2010 7/7 5.0 7.1 49.4% 70.9% 42.4% 58.5% 50.9% 57.1% 42.4% — —/— — — — — — — — — —
2011 1/1 2.0 6.0 29.4% 80.0% 38.9% 33.3% 0.0% 51.0% 30.0% — —/— — — — — — — — — —
2012 1/1 4.0 11.0 51.1% 71.7% 38.6% 40.0% 45.5% 55.6% 40.4% — —/— — — — — — — — — —
2013 2/2 5.0 1.5 41.3% 66.9% 57.2% 72.7% 70.8% 64.0% 57.8% — —/— — — — — — — — — —
Career 58/101 4.5 3.8 50.0% 67.1% 42.2% 54.6% 48.1% 55.0% 40.4% Career 28/81 1.4 2.0 65.6% 56.6% 42.8% 47.8% 38.8% 52.0% 38.9%

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Ekaterina Bychkova Tiantian Sun
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
2004 1505 101.3 — — — — — — — 50.0% 0.00 — — — +0.10 2002 1493 101.5 — — — — — — — 33.3% -2.00 0–1 — — -0.19
2005 1545 115.8 +0.50 +0.36 1.410 57.5% +2 +5 — 50.0% +0.29 1–3 (25%) 0–1 — +0.61 2003 1451 101.0 -0.20 -1.27 0.776 43.9% +17 — — 22.2% -1.67 0–2 1–2 (33%) — +0.54
2006 1484 116.4 -1.26 -2.26 0.878 47.5% +45 -42 — 34.4% -0.95 2–6 (25%) 2–4 (33%) 95.9 -0.25 2004 1430 103.5 — — — — -34 +118 — 24.0% -1.68 1–2 (33%) 1–1 — -0.02
2007 1465 117.0 -0.97 -2.69 0.867 47.1% +81 -55 — 35.7% -0.74 1–5 (17%) 1–3 (25%) 95.4 +0.08 2005 1520 124.6 — — — — -19 — — 57.7% +0.69 1–1 3–1 (75%) — +0.62
2008 1444 105.6 -1.14 -3.36 0.808 45.9% +97 -83 — 36.8% -1.03 2–4 (33%) 2–1 (67%) 99.1 +0.33 2006 1629 131.4 -1.14 -2.98 0.811 45.8% -16 — — 52.7% -0.04 2–5 (29%) — — -0.16
2009 1431 96.6 -0.72 -0.93 0.899 48.4% +80 — — 33.3% -1.33 0–1 0–1 — +0.33 2007 1505 100.0 -2.48 -2.77 0.830 45.9% +49 -23 — 20.5% -2.13 1–2 (33%) 4–1 (80%) 101.7 -1.14
2010 1480 116.9 +1.66 -1.32 0.989 49.8% +69 — — 44.4% -0.17 2–2 (50%) 1–1 — -0.38 2008 1494 101.6 -1.21 -2.08 0.750 43.9% +30 — — 30.8% -1.62 1–2 (33%) 2–3 (40%) 98.7 +0.02
2011 1478 105.3 +2.99 +1.39 0.612 40.6% — — — 0.0% -4.00 — — — -0.20 — — — — — — — — — — — — — — — —
2012 1464 100.6 -3.44 -4.61 0.910 48.0% — — — 33.3% -0.33 0–1 — — +0.08 — — — — — — — — — — — — — — — —
2013 1484 103.1 +0.17 +3.42 1.605 61.7% — — — 33.3% -0.33 0–1 — — +0.02 — — — — — — — — — — — — — — — —
2016 1470 94.8 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career 1571 116.9 -0.66 -2.15 0.898 47.9% +54 -46 — 38.7% -0.64 8–23 (26%) 6–11 (35%) 88.9 +0.72 Career 1650 117.9 -1.79 -2.69 0.810 45.5% 0 +30 — 37.4% -0.93 6–15 (29%) 11–8 (58%) 98.4 -0.41

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.