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

Saori Obata vs Tiantian Sun H2H: 1-0

Saori Obata holds a 1–0 lead over Tiantian Sun in their WTA head-to-head. Across 1 main-draw meeting, Saori Obata leads 1–0 on hard courts. Most recently, Saori Obata won the 2003 US Open round of 128 6-2 7-5.

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Saori Obata
JPN Age 48 Right-Handed 165 cm / 5'5"
H2H
1 – 0
1 main-draw meetings
Tiantian Sun
CHN Right-Handed 175 cm / 5'9"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Saori Obata #75 6-2 7-5 Tiantian Sun #195 Match data Aug 27, 2003* 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
Saori Obata #659 #39 836 1,666 42 77 35.3% 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.

Saori Obata Tiantian Sun
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1996 0–2 0.0% #300 1,469 0 0 2002 0–1 0.0% #231 1,493 0 0
1997 0–1 0.0% #228 1,455 0 0 2003 2–7 22.2% #129 1,451 0 0
1998 0–1 0.0% #216 1,440 0 0 2004 2–9 18.2% #126 1,429 0 0
1999 0–1 0.0% #455 1,431 0 0 2005 7–6 53.8% #105 1,520 0 0
2000 2–2 50.0% #174 1,458 0 0 2006 12–12 50.0% #81 1,628 0 1
2001 6–8 42.9% #94 1,512 0 0 2007 3–15 16.7% #230 1,505 0 1
2002 3–14 17.6% #126 1,461 0 0 2008 1–4 20.0% #281 1,493 0 1
2003 18–17 51.4% #49 1,641 0 0 — — — — — — —
2004 8–19 29.6% #109 1,488 0 0 — — — — — — —
2005 4–9 30.8% #110 1,497 0 0 — — — — — — —
2006 1–3 25.0% #289 1,501 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.

Saori Obata 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 %
1996 0 2 2 0.0% — — — — — — — — — — — — 2002 0 1 1 0.0% — — — — — — — — — — — —
1997 0 1 1 0.0% — — — — — — — — — — — — 2003 2 7 9 22.2% — — — — — — — — — — — —
1998 0 1 1 0.0% — — — — — — — — — — — — 2004 0 6 6 0.0% 1 2 3 33.3% 1 1 2 50.0% — — — —
1999 0 1 1 0.0% — — — — — — — — — — — — 2005 7 6 13 53.8% — — — — — — — — — — — —
2000 2 2 4 50.0% — — — — — — — — — — — — 2006 10 10 20 50.0% 1 1 2 50.0% 1 1 2 50.0% — — — —
2001 5 6 11 45.5% — — — — 0 1 1 0.0% 1 1 2 50.0% 2007 3 8 11 27.3% 0 5 5 0.0% 0 2 2 0.0% — — — —
2002 2 10 12 16.7% 0 1 1 0.0% 1 2 3 33.3% 0 1 1 0.0% 2008 0 3 3 0.0% 1 1 2 50.0% — — — — — — — —
2003 17 12 29 58.6% 0 1 1 0.0% 1 3 4 25.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
2004 3 14 17 17.6% 0 2 2 0.0% 4 2 6 66.7% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
2005 3 6 9 33.3% — — — — 0 2 2 0.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
2006 0 2 2 0.0% — — — — — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — —
Career 32 57 89 36.0% 0 4 4 0.0% 6 10 16 37.5% 4 6 10 40.0% 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 15/79 of Saori Obata'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.

Saori Obata 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%
2003 5/35 0.6 2.8 70.8% 52.6% 45.3% 51.2% 53.5% 50.3% 46.5% 2003 1/9 1.0 4.0 59.4% 60.5% 30.8% 28.6% 28.6% 48.4% 40.0%
2004 4/27 0.5 5.5 68.2% 52.6% 35.8% 38.5% 41.9% 46.6% 51.2% 2006 9/24 1.1 1.2 67.2% 58.1% 44.5% 53.0% 49.3% 53.8% 37.5%
2005 2/13 0.5 2.5 73.0% 62.2% 40.9% 41.1% 25.0% 56.4% 39.4% 2007 14/18 1.6 2.1 65.0% 55.8% 43.0% 44.6% 35.3% 51.3% 40.4%
2006 4/4 2.5 2.5 71.7% 60.6% 51.4% 57.3% 31.4% 56.9% 40.2% 2008 4/5 1.5 3.0 65.6% 55.4% 41.8% 51.8% 30.6% 51.0% 36.8%
Career 15/119 1.1 3.4 70.6% 56.0% 43.8% 48.1% 40.7% 51.9% 45.1% 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.

Saori Obata 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
1996 1469 96.7 — — — — — — — 33.3% -0.67 0–2 0–1 — +0.30 2002 1493 101.5 — — — — — — — 33.3% -2.00 0–1 — — -0.19
1997 1455 92.2 — — — — — — — 0.0% -5.00 — — — +0.11 2003 1451 101.0 -0.20 -1.27 0.776 43.9% +17 — — 22.2% -1.67 0–2 1–2 (33%) — +0.54
1998 1440 95.7 — — — — — — — 0.0% -3.50 — — — +0.16 2004 1430 103.5 — — — — -34 +118 — 24.0% -1.68 1–2 (33%) 1–1 — -0.02
1999 1431 100.5 — — — — — — — 0.0% -3.00 — — — -0.01 2005 1520 124.6 — — — — -19 — — 57.7% +0.69 1–1 3–1 (75%) — +0.62
2000 1459 104.9 — — — — +27 — — 44.4% -0.11 1–0 1–1 — +0.07 2006 1629 131.4 -1.14 -2.98 0.811 45.8% -16 — — 52.7% -0.04 2–5 (29%) — — -0.16
2001 1512 122.7 — — — — +25 — — 46.9% +0.03 1–3 (25%) 1–2 (33%) 99.6 +0.30 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
2002 1462 107.0 — — — — +2 — +91 24.3% -1.43 0–3 (0%) 0–4 (0%) 92.1 -0.56 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
2003 1642 127.3 -1.91 +0.72 0.936 48.1% +4 — -106 51.3% +0.28 4–4 (50%) 1–5 (17%) 98.2 +0.14 — — — — — — — — — — — — — — — —
2004 1489 107.8 -2.44 +1.59 0.958 48.7% -21 — +92 33.3% -1.02 4–4 (50%) 1–2 (33%) 99.0 +1.03 — — — — — — — — — — — — — — — —
2005 1497 118.9 +0.68 -0.94 0.902 46.9% -7 — — 35.7% -0.25 0–2 1–2 (33%) — -0.13 — — — — — — — — — — — — — — — —
2006 1502 117.4 -0.93 -1.56 0.933 48.7% -13 — — 33.3% -1.00 0–1 — — -0.24 — — — — — — — — — — — — — — — —
Career 1666 120.5 -1.44 +0.12 0.938 48.3% +1 — +31 38.9% -0.51 10–19 (34%) 5–17 (23%) 89.2 +0.98 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.